Litian Heavy Industry Machinery Co., Ltd http://pastport.jp/user/LitianHeavyIndustry/timeline/Litian%20Heavy%20Industry%20Machinery%20Co.%2C%20Ltd Litian Heavy Industry Machinery Co., Ltd, established in 2010, located in Huludao, Liaoning province, is a professional manufacturer focused on the production of rock breaking tools and drilling tools suitable .https://www.litechtools.com/ ja-JP Tools For Rock Drilling And Blasting In Construction(2024年02月02日) <p><a href="https://www.litechtools.com/construction-drill-and-blast-hole-bits.html">https://www.litechtools.com/construction-drill-and-blast-hole-bits.html</a></p> <p>Construction Drill and Blast</p> <p>Top hammer rock drilling tools for Construction Drill and Blast</p> <p>With the attention and investment of the infrastructure industry at home and abroad, in many construction industries with high construction difficulty and high risk, the mechanized drilling and blasting construction of rock drilling rigs have gradually replaced the pneumatic drilling and blasting construction with more personnel, high labor intensity, large safety risk, and low efficiency.</p> <p>The evolution of rock drilling and blasting methods, driven by the development of advanced drilling accessories for construction and tools for drilling holes in rocks, has significantly improved the efficiency and safety of construction projects. These advancements have made it possible to undertake complex construction projects that were previously considered too risky or difficult.</p> <p>Why Choose Litian's Blast And Drill Rock Tools For Construction<br /> Litian provides a range of top hammer drilling tools (threaded drill bits, drill rods, shank rods, couplings, blast hole bits) for the construction drilling and blasting industry. Our rock excavation tools have been widely used in mining, quarries, tunnels, railways, roads, foundations, pipelines, and various civil engineering projects.</p> <p>Our rock mining drilling tools are made of the toughest alloy structural steel and cemented carbide to provide maximum drilling performance. Our drill bits, drill rods, shank adapters, and coupling sleeves are well matched, which can minimize the loss in the energy transmission process, while ensuring the verticality of the drilling hole, so that the impact energy can be concentrated on the rock, to achieve accurate drilling purposes, reduce the cost of drilling per meter.</p> <p>Whether in terms of hole drilling quality, service life of rock drilling tools, or reducing total drilling & blasting costs, we are an ideal choice for you!</p> <p>Litian Blast Hole Drilling Tools Rock For Construction<br /> Top Hammer Drilling Tool:</p> <p>Button Bit, Drill Rod, Shank Adapter, Coupling Sleeve</p> <p>Thread: R22, R25, R28, R32, R35, R38, T38, T45, T51, GT60, ST58, ST68, SR28, SR35, TR35, EL60, EL68, etc.<br /> <a href="https://www.litechtools.com/uploads/image/20211215/rock-tools-drilling.jpg" rel="nofollow"><img src="https://www.litechtools.com/uploads/image/20211215/rock-tools-drilling.jpg" alt="rock-tools-drilling.jpg" /></a></p> 2024-02-02T15:35:17+0900 http://pastport.jp/user/LitianHeavyIndustry/timeline/Litian%20Heavy%20Industry%20Machinery%20Co.%2C%20Ltd/event/ZjucsFeog5T LitianHeavyIndustry http://pastport.jp/user/LitianHeavyIndustry/timeline/Litian%20Heavy%20Industry%20Machinery%20Co.%2C%20Ltd/event/ZjucsFeog5T#comments http://pastport.jp/user/LitianHeavyIndustry/timeline/Litian%20Heavy%20Industry%20Machinery%20Co.%2C%20Ltd/event/ZjucsFeog5T Rock Mining Drilling Tools(2024年02月01日) <p><a href="https://www.litechtools.com/mining.html">https://www.litechtools.com/mining.html</a></p> <p>Mining</p> <p>Top hammer drilling tools and raise boring cutters, disc cutters for mining industry</p> <p>Litian supplies high-quality rock mining tools including top hammer drill string components and raise boring cutters for the mining industry. Over the past decade, we have improved the abrasion resistance and impact resistance of the rocking mining tools, elevating their quality to a first-class level domestically. Litian's tools have been successfully applied in various metal mines, improving production efficiency and reducing costs.</p> <p>Litan As A Professional Mining Drilling Tools Manufacturer<br /> In the mining industry, high-efficiency and high-precision requirements for mining rock drilling tools are common demands from customers, which is also an important factor that can improve mining efficiency. Litian offers a wide range of high-quality top hammer drill string components (thread drill rods, thread button bits, shank adapters, coupling sleeves), and raise boring cutters for surface mining and underground mining.</p> <p>Ten years ago, our mining hard rock drilling tools were only used on a small scale in the mining industry due to the low popularity. Through customers' continuous feedback on product quality, as well as our continuous improvement of rock mining drilling tools, the abrasion resistance and impact resistance of our top hammer drilling tools have been continuously enhanced, and the mining rock tools quality has been improved to the domestic first-class level. Excellent quality and good reputation make us a firm foothold in the mining industry. The successful applications of our rock mining drilling tools to gold mines, silver mines, copper mines, iron mines, phosphorus mines, and other metal mines have improved production efficiency and saved comprehensive development costs for customers.</p> <p>In underground mines, economical and safe mechanized shaft construction has gradually replaced the traditional methods of drilling and blasting excavation. Raise boring machines are widely used in the drilling of different shafts, such as ventilation shafts, lifting shafts, ore passageways, escape channels, and so on. The raise boring cutters developed and produced by Litian can be suitable for all types of raise borer and can be mounted on the reaming cutter head with a diameter range of 1-8m.</p> <p>In order to quickly excavate deep deposits and improve the efficiency and safety of mining operations, equipment manufacturers have developed shaft boring extension machine (SBE) and shaft boring machine (SBM) that using disc cutters as the boring tools for the mining industry. Litian can design and manufacture high-quality disc cutters according to the structure of their cutterheads and the specific rock formations, and provide comprehensive technical support.</p> <p>Litian has experienced product application experts who can provide excellent configuration solutions of top hammer drilling tools, raise boring roller cutters, and disc cutters for open pit and underground mining according to the specific geological conditions, the use of rock drilling equipment, or the wear of the previously used rock drilling tools, so as to increase the service life of the mining rock drilling tool and improve the overall production efficiency.</p> <p>As one of the mature mining drilling tools manufacturers, Litian offers high-quality underground rock tools and surface mining tools, such as hard rock mining tools, mining drill rods, mining drill bits for sale at competitive prices. The different types of drill bits used in mining we provide can be your first choice! Contact us now!</p> <p>Types Of Drilling Mining Tools by Litian<br /> Types Of Drilling Mining Tools by Litian<br /> Product CategoryTypes Of Mining ToolsDetails<br /> Top Hammer Drilling ToolsButton BitThreaded Button Bit, Tapered Button Bit<br /> drill rodExtension Rod, MF Rod, Drifter Rod, Guide Tube, Drill Tube<br /> shank adaptersuitable for rock drill Epiroc, Sandvik, Furukawa, Ingersoll-Rand, Montabert, Boart LongYear, etc.; custom design acceptable<br /> coupling sleeveSemi bridge Couplings, Full bridge Couplings, Crossover Couplings<br /> small hole drilling toolslength and diameter varies<br /> Raise Boring CuttersKerf Roller Cutter7" ~ 17" (178mm ~ 432mm)<br /> Random Roller Cutter</p> <p>Surface Mining Tools</p> <p>Commonly used top hammer drilling tools :<br /> ProductDescriptionModel No.<br /> T45 Threaded Rock Driling Tools<br /> Button BitT45 Thread, 76mm, 8 Gauge buttons, Spherical buttons, Drop centerT45-7613ZCA<br /> Retrac Button BitT45 Thread, 76mm, 8 Gauge buttons, Spherical buttons, Drop centerT45-7613YFA<br /> Retrac Button BitT45 Thread, 89mm, 8 Gauge buttons, Spherical buttons,T45-8914YF<br /> Retrac Button BitT45 Thread, 89mm, 8 Gauge buttons, Spherical buttons, Drop centerT45-8914YFA<br /> Button BitT45 Thread, 102mm, 8 Gauge buttons, Spherical buttonsT45-10214ZC<br /> Retrac Button BitT45 Thread, 102mm, 8 Gauge buttons, Spherical buttons, Drop centerT45-10216YFA<br /> Drill RodT45-T45 Thread, Length 3050mm, Round rod (T45 extension rod)T45-D46-3050<br /> Drill RodT45-T45 Thread, Length 3660mm, Round rod (T45 drill rod)T45-D46-3660<br /> MF RodT45-T45 Thread, Length 3050mm, Round rod (T45 drill steel)MF-T45-D46-3050<br /> MF Drill RodT45-T45 Thread, Length 3660mm, Round rodMF-T45-D46-3660<br /> MF Drill RodT45-T45 Thread, Length 3660mm, Round rodMF-T45-D65-3660<br /> Coupling SleeveT45-T45 Thread, Length 210mmLT45-D63-210<br /> T51 Threaded Rock Driling Tools<br /> Button BitT51 Thread, 76mm, Spherical buttons, 8 Gauge buttonsT51-7612ZC<br /> Button BitT51 Thread, 89mm, Spherical buttons, 8 Gauge buttonsT51-8914ZC<br /> Retrac Button BitT51 Thread, 89mm, Spherical buttons, 9 Gauge buttonsT51-8916YF<br /> Retrac Button BitT51 Thread, 89mm, Spherical buttons, 8 Gauge buttons, Drop centerT51-8914YFA<br /> Button BitT51 Thread, 102mm, Spherical buttons, 8 Gauge buttonsT51-10214ZC<br /> Retrac Button BitT51 Thread, 102mm, Spherical buttons, 9 Gauge buttonsT51-10216YF<br /> Retrac Button BitT51 Thread, 115mm, Spherical buttons, 8 Gauge buttonsT51-11515YF<br /> Button BitT51 Thread, 115mm, Spherical buttons, 8 Gauge buttons, Drop centerT51-11514ZCA<br /> Retrac Button BitT51 Thread, 115mm, Spherical buttons, 8 Gauge buttons, Drop centerT51-11514YFA<br /> Button BitT51 Thread, 127mm, Spherical buttons, 8 Gauge buttonsT51-12716ZC<br /> Button BitT51 Thread, 127mm, Spherical buttons, 8 Gauge buttons, Drop centerT51-12716ZCA<br /> Retrac Button BitT51 Thread, 127mm, Spherical buttons, 8 Gauge buttons, Drop centerT51-12716YFA<br /> Button BitT51 Thread, 152mm, Spherical buttons, 9 Gauge buttonsT51-15218ZC<br /> Retrac Button BitT51 Thread, 152mm, Spherical buttons, 9 Gauge buttonsT51-15218YF<br /> Drill RodT51-T51 Thread, Length 4265mm, Round rodT51-D52-4265<br /> Drill RodT51-T51 Thread, Length 6095mm, Round rodT51-D52-6095<br /> MF Drill RodT51-T51, Length 3660mm, Round rodMF-T51-D52-3660<br /> MF Drill RodT51F-D52-T51M, Length 6095mm, Round rodMF-T51-D52-6095<br /> MF Drill RodT51-T51 Thread, Length 1830mm, Round rodMF-T51-D76-1830<br /> MF Drill RodT51-T51 Thread, Length 3660mm, Round rodMF-T51-D76-3660<br /> MF Drill RodT51-T51 Thread, Length 3660mm, Round rodMF-T51-D76-3660<br /> Coupling SleeveT51-T51 Thread, Length 225mm, Semi-bridge typeLT51-D71-225<br /> Coupling SleeveT51-T51 Thread, Length 250mm, Semi-bridge typeLT51-D71-250</p> <p>Underground Mining Tools</p> <p>Commonly used top hammer drilling tools :</p> <p>ProductDescriptionModel No.<br /> R32 Threaded Rock Driling Tools<br /> Button BitR32 Thread, 43mm, Ballistic buttons, 5 Gauge buttonsR32-437ZC<br /> Button BitR32 Thread, 45mm, Ballistic buttons, 6 Gauge buttonsR32-459ZC<br /> Reaming BitR32 Thread, 76mm, 6 Gauge buttonsR32-7612KK<br /> Reaming BitR32 Thread, 89mm, 8 Gauge buttonsR32-8915KK<br /> Reaming BitR32 Thread, 102mm, 8 Gauge buttonsR32-10217DX<br /> MF Drill RodT38-R32 Thread, Length 3700mm, Hexagonal rodMF-T38/R32-H35-3700<br /> MF Drill RodR38-R32 Thread, Length 4265mm, Hexagonal rodMF-T38/R32-H35-4265<br /> Drill RodT38-R32 Thread, Length 4265mm, Hexagonal rodT38/R32-H35-4265<br /> Drill RodR38-R32 Thread, Length 3700mm, Hexagonal rodT38/R32-H35-3700<br /> Coupling SleeveR38-R38 Thread, Length 170mm, Full-bridge typeLR38-D56-170R<br /> Coupling SleeveR38-R38 Thread, Length 170mm, Semi-bridge typeLR38-D56-170<br /> Coupling SleeveT38-T38 Thread, Length 190mm, Semi-bridge typeLT38-D56-190<br /> T38 Threaded Rock Driling Tools<br /> Button BitT38 Thread, 64mm, Spherical buttons, 6 Gauge buttons, Drop centerT38-6410ZCA<br /> Retrac Button BitT38 Thread, 64mm, Ballistic buttons, 8 Gauge buttons, Drop centerT38-6413YFA<br /> Retrac Button BitT38 Thread, 76mm, Spherical buttons, 8 Gauge buttonsT38-7612YF<br /> Retrac Button BitT38 Thread, 76mm, Spherical buttons, 8 Gauge buttons, Drop centerT38-7613YFA<br /> Reaming BitT38 Thread, 89mm, Spherical buttons, 8 Gauge buttonsT38-8913ZC<br /> Reaming BitT38 Thread, 102mm, 64mm, Spherical buttons, 8 Gauge buttons,T38-10214DX<br /> Reaming BitT38 Thread, 127mm, 64mm, Spherical buttons, 8 Gauge buttonsT38-12716DX<br /> Reaming BitT38 Thread, 152mm, 89mm, Spherical buttons, 9 Gauge buttonsT38-15218DX<br /> MF Drill RodT38-T38 Thread, Length 1525mm, Round rodMF-T38-D56-1525<br /> MF Drill RodT38-T38 Thread, Length 1830mm, Round rodMF-T38-D56-1830<br /> MF Drill RodT38-T38 Thread,Length 915mm, Round rodMF-T38-D39-915<br /> MF Drill RodT38-T38 Thread, Length 1830mm, Round rodMF-T38-D39-1830<br /> T45 Threaded Rock Driling Tools<br /> Button Bit76mm, Spherical buttons, 8 Gauge buttons, T45 Thread, Drop centerT45-7613ZCA<br /> Retrac Button Bit76mm, Spherical buttons, 8 Gauge buttons, T45 Thread, Drop centerT45-7613YFA<br /> Button Bit89mm, Spherical buttons, 8 Gauge buttons, T45 Thread, Drop centerT45-8914ZCA<br /> Retrac Button Bit89mm, Spherical buttons, 8 Gauge buttons, T45 Thread, Drop centerT45-8914YFA<br /> Reaming BitT45 Thread, 102mm, 64mm, Spherical buttons, 8 Gauge buttonsT45-10216DX<br /> Reaming BitT45 Thread, 127mm, 76mm, Spherical buttons, 8 Gauge buttonsT45-12714DX<br /> Reaming BitT45 Thread, 152mm, 118mm, Spherical buttons, 9 Gauge buttonsT45-15212DX<br /> Reaming BitT45 Thread, 178mm, 76mm, Spherical buttons, 9 Gauge buttonsT45-17824DX<br /> MF Drill RodT45F-T45M Thread, Length 1525mm, Round rodMF-T45-D46-1525<br /> MF Drill RodT45F-T45M Thread, Length 1830mm, Round rodMF-T45-D46-1830<br /> MF Drill RodT45F-D65-T45M Thread, Length 1830mm, Round rodMF-T45-D65-1830<br /> <a href="https://www.litechtools.com/uploads/image/20211207/vertical-mine-shaft.jpg" rel="nofollow"><img src="https://www.litechtools.com/uploads/image/20211207/vertical-mine-shaft.jpg" alt="vertical-mine-shaft.jpg" /></a></p> 2024-02-02T15:34:33+0900 http://pastport.jp/user/LitianHeavyIndustry/timeline/Litian%20Heavy%20Industry%20Machinery%20Co.%2C%20Ltd/event/hgG3XVAAtpK LitianHeavyIndustry http://pastport.jp/user/LitianHeavyIndustry/timeline/Litian%20Heavy%20Industry%20Machinery%20Co.%2C%20Ltd/event/hgG3XVAAtpK#comments http://pastport.jp/user/LitianHeavyIndustry/timeline/Litian%20Heavy%20Industry%20Machinery%20Co.%2C%20Ltd/event/hgG3XVAAtpK Litian Rock Tool Services(2024年02月02日) <p><a href="https://www.litechtools.com/litian-rock-tool-services.html">https://www.litechtools.com/litian-rock-tool-services.html</a></p> <p>Litian Rock Tool Services</p> <p>Litian has a large number of project experience in tunnel excavation, mining, construction, and other fields, we can provide customers with comprehensive quality services and technical support for the whole project.</p> <p>Provide product solutions<br /> We can design the most suitable product scheme for customers according to their construction conditions, project conditions, equipment used, geological conditions, used products wear situation, etc, so as to help customers improve work efficiency and save costs.</p> <p>Set up on-site workstations<br /> According to customer requirements, we can set up cutter tools workstations at the project construction site. The workstation is equipped with all the necessary tools and accessories to quickly and professionally repair worn products.</p> <p>Provide cutter tool services<br /> According to the construction conditions of the surrounding rock and the equipment used by the users, we can optimize the cutter tools design so that the users can achieve the fastest tunneling speed at a lower comprehensive cost.</p> <p>We can provide users with a whole process of tool inspection, configuration, replacement, testing, repair, and a series of work or training. we also can equip the project with professional technicians, providing service and support on-site, and establish tool databases to manage tools.</p> <p>Training and on-site service<br /> We can provide various ways of communication and training on tool preparation and service, as well as tool inspection, replacement, warehousing, and on-site staff training for construction units.</p> <p>According to the needs of customers, we can send experienced application experts and professional service team to the construction site to support your efficient tunneling and drilling.</p> <p>TBM tunneling contract<br /> We can contract according to TBM tunneling volume to help users significantly improve tunneling efficiency and reduce comprehensive tunneling costs.</p> <p>As a rock tool company, we can provide kinds of mining rock tools for sale, if you are interested, please contact us.<br /> <a href="https://www.litechtools.com/uploads/image/20211215/rock-breaking-tools.jpeg">https://www.litechtools.com/uploads/image/20211215/rock-breaking-tools.jpeg</a></p> 2024-02-02T15:34:02+0900 http://pastport.jp/user/LitianHeavyIndustry/timeline/Litian%20Heavy%20Industry%20Machinery%20Co.%2C%20Ltd/event/zwukVOZFueO LitianHeavyIndustry http://pastport.jp/user/LitianHeavyIndustry/timeline/Litian%20Heavy%20Industry%20Machinery%20Co.%2C%20Ltd/event/zwukVOZFueO#comments http://pastport.jp/user/LitianHeavyIndustry/timeline/Litian%20Heavy%20Industry%20Machinery%20Co.%2C%20Ltd/event/zwukVOZFueO Factory Show(2024年02月02日) <p><a href="https://www.litechtools.com/factory-show/">https://www.litechtools.com/factory-show/</a></p> <p>Litian Factories</p> <p>As a rock drilling tools ltd, we have two production bases with a total of 290,625 square feet, in Huludao city, China. The two factories focus on the production of rock tool consumables - TBM cutter, top hammer rock drilling tools (threaded button bits, drill rods, shank adapters, coupling sleeves), and raise boring cutters.</p> <p>Button Bit Factory Figures<br /> 290,625</p> <p>Square ft of production bases</p> <p>55</p> <p>Main production equipment</p> <p>200+</p> <p>Trained Workers</p> <p><a href="https://www.litechtools.com/uploads/image/20211208/18/rock-drilling-tools-manufacturers_1638959995.jpg" rel="nofollow"><img src="https://www.litechtools.com/uploads/image/20211208/18/rock-drilling-tools-manufacturers_1638959995.jpg" alt="rock-drilling-tools-manufacturers_1638959995.jpg" /></a></p> 2024-02-02T15:33:22+0900 http://pastport.jp/user/LitianHeavyIndustry/timeline/Litian%20Heavy%20Industry%20Machinery%20Co.%2C%20Ltd/event/oHKN4xfv778 LitianHeavyIndustry http://pastport.jp/user/LitianHeavyIndustry/timeline/Litian%20Heavy%20Industry%20Machinery%20Co.%2C%20Ltd/event/oHKN4xfv778#comments http://pastport.jp/user/LitianHeavyIndustry/timeline/Litian%20Heavy%20Industry%20Machinery%20Co.%2C%20Ltd/event/oHKN4xfv778 Rock Drilling Bits Classification(2024年02月02日) <p><a href="https://www.litechtools.com/types-of-rock-drill-bit.html">https://www.litechtools.com/types-of-rock-drill-bit.html</a></p> <p>Drill Bits Mining<br /> Rock Drilling Bits Classification<br /> Today, modern rock drilling and blasting technologies and geotechnical excavation operations have become the main method of obtaining resources from rock and opening up underground space for survival and development. Therefore, long-term cooperation of experts in rock drilling, blasting, rock crushing, mining, materials, metallurgy, steel and machinery is needed. The development of long-life hard rock drill bits has become a major engineering technology problem that must be solved in the global mining industry in the new century in order to handle rocks efficiently and at low cost.</p> <p>The mining industry is one of the basic industries of the national economy. In order to improve the economy and habitat, we need to extract more resources, expand a wider living space, build easier roads, and construct more energy and defense bases. Mining rock drill bits are indispensable tools in mining and infrastructure construction. Different rock drill bit types are used in mines, railroads, highway construction, ports, power station defense projects, etc., as well as in urban construction and quarrying. In this article, you will get more about types of drill bits used in mining.</p> <p>1. Rock Drill Bit Types</p> <p>(1). Button Drill Bit</p> <p>Button drill bit is suitable for dry and wet drilling of medium hard and hard rocks. It is mainly used in all kinds of mining, transportation, water conservancy, roadway, tunnel excavation, quarrying and rock breaking engineering of municipal construction.</p> <p>(2). Chisel Drill Bit</p> <p>Chisel rock drill bit is suitable for light rock drills, drilling rock holes with a diameter of less than 50mm, and is suitable for rocks with low hardness. This bit is widely used in various mines such as coal mine, iron ore, gold mine, copper mine and lead-zinc mine, as well as tunnel excavation in railway, highway and water conservancy construction. Chisel Bit has mature technology, adopts high-quality steel and alloy, has high toughness and high wear resistance, high production efficiency and low cost.</p> <p>(3). Cross Drill bit</p> <p>Cross rock drill bit is suitable for high-power rock drill, which can drill into complex rock strata such as rock cracks. It has strong radial wear resistance. The cross bit also adopts mature technology, high-quality steel and alloy, has strong radial wear resistance, maintains high production efficiency and can control the cost.</p> <p>(4). Three-edge Drill Bit</p> <p>Three-edge rock drill bit is suitable for high-power rock drill. It has strong drilling ability and is suitable for high hardness and complex rocks. It is widely used in highway, railway, water conservancy construction tunnels, coal mine, iron mine, gold mine and other mining excavation.</p> <p>(5). Horseshoe Drill Bit</p> <p>Horseshoe rock drill bit is suitable for all kinds of steel plants, blast furnace and ladle. Its main characteristics are fast opening speed and easy to control the depth and angle of channel and iron hole. The maintenance of iron hole mud bag is simple and saves manpower.</p> <p>Horseshoe Drill Bit</p> <p>2. How to Choose Rock Drill Bits<br /> When selecting the rock drill bit, it shall be selected according to the type, performance, rock hardness and toughness of the drill bit. Generally, the chisel rock drill bit shall be selected when there is no crack in the rock; Cross rock drill bit and three-edge bit can be widely used in various rocks, especially in hard and extremely hard rocks with high abrasive cracks; The button drill bit is suitable for all kinds of rocks except high abrasive rocks.</p> <p>(1). When drilling, due to the cutter feeding too fast, grinding or drilling cold and hot may cause the phenomenon of bit fracture or sudden stop;</p> <p>(2). When drilling, the air volume of the rock drill shall be reduced to reduce the damage to the drill bit caused by high stress of cemented carbide parts.</p> <p>As one of the mature rock cutting tools manufacturers, Litian offers a wide range of threaded button bits for sale. Contact us now if you are looking for high-quality rock drill bits!</p> <p>Rock Drill Bit Sizes<br /> Different top hammer rock drill bit sizes are used for various drilling applications, depending on the type of rock formation being drilled and the drilling method used. Here are some examples of how different top hammer rock drill bit sizes can be used in different applications.</p> <p>Small diameter top hammer button bits (less than 2 inches): These are commonly used for drilling shallow blast holes, anchor holes, and exploration drilling in soft to medium-hard rock formations.</p> <p>Medium-diameter top hammer button bits (2 to 4 inches): These are used for drilling medium blast holes in medium-hard to hard rock formations. They are also used for tunneling and drifting applications.</p> <p>Large-diameter top hammer button bits (greater than 4 inches): These are used for drilling large blast holes in hard rock formations. They are also used in construction and mining applications, such as drilling shafts and tunnels.</p> <p>Selecting the right top hammer rock drill bit size for the specific application is critical to ensure efficient drilling and maximum productivity. The rock drill bit sizes should be selected based on the hardness, density, depth of rock formation, and the drilling method being used. Additionally, other factors such as the type of rock drills and the power of the drilling machine may also influence the choice of button bit size.</p> <p>Common Applications Of Top Hammer Rock Drilling Bits<br /> Mining Drill Bits<br /> In mining, top hammer drill tools are used to mine ore or explore for mineral deposits. Open pit and underground mining drill bits are essential tools in the mining industry. They play a crucial role in ensuring the safety and efficiency of open pit and underground mining operations. The types of drilling in mining come in various shapes and sizes, each designed for a specific type of rock or mining condition. For instance, some drill bits are designed with a conical shape for drilling in soft rock, while others have a flat or button shape for hard rock drilling. With the continuous advancement of technology, we can expect to see even more innovative and efficient drill bits being developed for the mining industry.</p> <p>Rock Drill Bits For Quarrying<br /> Rock drilling bits are also used in the quarrying industry to extract stone and other materials from the earth. They are used to drill holes into the rock, which are then filled with explosives to break apart the rock and extract the desired materials.</p> <p>Rock Drill Bits For Tunneling and Underground Engineering<br /> In tunneling and underground engineering, top hammer drilling tools are used to drill holes in rock for blasting or construction of underground structures.</p> <p>Rock Drill Bits For Construction and foundation engineering<br /> Top hammer drilling tools are widely used in construction and foundation engineering for drilling rocks at construction sites or bridges and other projects to place blasting agents or perform foundation work.</p> <p>Rock Drill Bits In Oil and Gas Industry<br /> General, top hammer rock drilling tools are rarely used in the oil and gas industry. However, in certain specific geological conditions or situations requiring rock reinforcement, the use of top hammer rock drilling tools may be considered. For instance, in special areas where blasting or strengthening of rock formations is needed, top hammer rock drilling tools might be used.</p> <p>Overall, top hammer drilling tools have applications wherever rock drilling and preparation are required. They provide efficient, precise, and safe rock-handling solutions that enable a variety of projects to proceed smoothly.</p> <p>Rock Drill Bit Maintenance<br /> Maintaining rock drill bits is crucial to ensure their longevity and performance. Here are some tips on how to maintain rock drill bits:</p> <p>Clean the Bit Regularly: After each use, clean the bit thoroughly with a wire brush to remove any debris, dirt or rock particles that may be stuck in it. Failure to clean the bit regularly may lead to a buildup of debris that can cause damage to the bit and affect its drilling performance.</p> <p>Inspect the Bit: Inspect the bit regularly to check for any signs of damage such as cracks, worn-out buttons or cones, or excessive wear. If any of these signs are present, it may be time to replace the bit.</p> <p>Keep the Bit Lubricated: Lubrication is essential for the proper functioning of the bit. Make sure to use the recommended lubricants and ensure that they are applied correctly.</p> <p>Store the Bit Properly: When not in use, store the bit in a dry and cool place, away from direct sunlight and moisture. This helps to prevent rust and corrosion that can affect the bit's performance.</p> <p>Sharpen the Bit: A dull bit can reduce drilling efficiency and increase wear and tear. Regularly sharpen the bit using a sharpening stone or file to maintain its sharpness.</p> <p>Use the Bit Correctly: Proper use of the bit is also important for its longevity. Use the correct drilling technique and avoid applying too much pressure, which can cause the bit to break.</p> <p>By following these tips, you can maintain your rock drill bit and ensure that it performs at its best.</p> <p><a href="https://www.litechtools.com/uploads/image/20220325/threaded-button-bits.jpg" rel="nofollow"><img src="https://www.litechtools.com/uploads/image/20220325/threaded-button-bits.jpg" alt="threaded-button-bits.jpg" /></a></p> 2024-02-02T15:32:50+0900 http://pastport.jp/user/LitianHeavyIndustry/timeline/Litian%20Heavy%20Industry%20Machinery%20Co.%2C%20Ltd/event/aYJu68HVEo5 LitianHeavyIndustry http://pastport.jp/user/LitianHeavyIndustry/timeline/Litian%20Heavy%20Industry%20Machinery%20Co.%2C%20Ltd/event/aYJu68HVEo5#comments http://pastport.jp/user/LitianHeavyIndustry/timeline/Litian%20Heavy%20Industry%20Machinery%20Co.%2C%20Ltd/event/aYJu68HVEo5 Rock Tools In Tunnelling & Underground(2024年02月01日) <p><a href="https://www.litechtools.com/tunneling-underground-boring-tool.html">https://www.litechtools.com/tunneling-underground-boring-tool.html</a></p> <p>Tunneling & Underground Project</p> <p>TBM cutters, Top hammer drilling tools and raise boring cutters for Tunnelling & Underground Engineering</p> <p>The construction of every tunnel excavation and underground project requires the coordinated operation of various types of equipment. Rock drilling tools & tunnelling tools used in underground tunnel construction are crucial instruments for penetrating and breaking through rock layers. Choosing the right rock tools not only withstands the harsh conditions and high pressure encountered during tunnel construction but also significantly enhances the speed and safety of underground tunnel construction. This, in turn, shortens project timelines and improves cost-effectiveness.</p> <p>Litian Underground & Tunnel Drilling Rock Drill Tools<br /> As a drilling tools factory, we can provide safe, high-efficiency, and high-precision rock tools consumables for rock drilling and breaking. Litian TBM cutters can be adapted to all kinds of tunnel boring machines to complete tunnel excavation work under various rock conditions. Litian top hammer drilling tools can be adapted to all kinds of underground rock drilling rigs to complete precise rock drilling operations. Litian raise boring cutters can be adapted to all kinds of raise borers to complete the construction of various pilot shafts and ventilation shafts.</p> <p>In different tunneling and underground engineering, the physical properties of rocks (such as density, humidity, magnetism, swelling, dissolution) and mechanical properties of rocks (such as strength, hardness, abrasion, brittleness, toughness, robustness) are differ in thousands of ways. In the development of TBM cutters, Top hammer drilling tools, and raise boring cutters, we not only carry out development in raw materials, heat treatment, and manufacturing technology, but also produce rock drilling tools and excavation tools in accordance with the different characteristics of the rocks.</p> <p>In order to meet the standards of safety, speed, accuracy during drilling and excavation, the parameters of our underground boring tools and drilling tools can be fully matched with the host machine to achieve the best working conditions and complete the work tasks more efficiently.</p> <p>Litian Rock Drill Tools In Underground Tunnel Construction Projects<br /> After years of accumulation and development, Litian rock boring tools have been widely used in various tunnel construction projects and underground engineering, such as metro, railways, road tunnels, harbour tunnels, water diversion projects, sewage treatment projects, outfall projects, underground pipeline projects, etc. We have participated in many large-scale projects at home and abroad, such as Hanjiang to Weihe River Project, ABH Water Transmission Tunnel Project, Peru San Gaban hydropower station tunnel project, and so on.</p> <p>Common threaded drilling tools for tunnel construction project:<br /> ProductDescriptionModel No.<br /> R32 Threaded Rock Driling Tools<br /> Button bitR32 Thread, 48mm, Spherical buttons, 6 Gauge buttonsR32-489ZC<br /> Button bitR32 Thread, 51mm, Spherical buttons, 6 Gauge buttonsR32-519ZC<br /> Button bitR32 Thread, 57mm, Spherical buttons, 6 Gauge buttonsR32-579ZC<br /> Button bitR32 Thread, 64mm, Spherical buttons, 8 Gauge buttonsR32-6412ZC<br /> MF Drill RodT38-R32 Thread, Length 4305mm, Hexagonal rodMF-T38/R32-H35-4305<br /> MF Drill RodR3-R32 Thread, Length 4915mm, Hexagonal rodMF-R38/R32-H35-4915<br /> T38 Drill RodT38-R32 Thread, Length 5525mm, Hexagonal rodT38/R32-H35-5525<br /> Rock Drill RodR38-R32 Thread, Length 6400mm, Hexagonal rodR38/R32-H35-6400<br /> Coupling SleeveR38-R38 Thread, Length 190mm, Semi-bridge typeLT38/R32-D56-190<br /> Coupling SleeveT38-T38 Thread, Length 190mm, Full-bridge typeLT38-D56-190R</p> <p><a href="https://www.litechtools.com/uploads/image/20211207/raise-boring-roller-bits.jpg" rel="nofollow"><img src="https://www.litechtools.com/uploads/image/20211207/raise-boring-roller-bits.jpg" alt="raise-boring-roller-bits.jpg" /></a></p> 2024-02-02T15:31:58+0900 http://pastport.jp/user/LitianHeavyIndustry/timeline/Litian%20Heavy%20Industry%20Machinery%20Co.%2C%20Ltd/event/31094Ga0PIR LitianHeavyIndustry http://pastport.jp/user/LitianHeavyIndustry/timeline/Litian%20Heavy%20Industry%20Machinery%20Co.%2C%20Ltd/event/31094Ga0PIR#comments http://pastport.jp/user/LitianHeavyIndustry/timeline/Litian%20Heavy%20Industry%20Machinery%20Co.%2C%20Ltd/event/31094Ga0PIR Tapered Drill Rods(2024年02月02日) <p><a href="https://www.litechtools.com/tapered-drill-rods/">https://www.litechtools.com/tapered-drill-rods/</a></p> <p>Tapered Drill Rods<br /> Tapered metal rod is suitable for small pneumatic rock drills or hydraulic rock drills for shallow hole drilling operations, and are generally made of H22 and H25 hexagonal hollow drill steel. The tapered drill rod needs to be matched with the taper drill bit for rock drilling, and It is usually used in rock drilling operations in quarries, coal mines, roadbeds, construction and other fields. Conventional taper angles for tapered drill rods are 7°, 11°and 12°.</p> <p>Specification Of Tapered China H25 Drill Rods<br /> LengthDiameterWeightModel No.<br /> [mm][ft-in][mm][in][kg]<br /> 18005' 91"227/8"5.8H22-T7-1800<br /> Shank H22×108mm, Hex 22, 7°24007' 10"227/8"7.6H22-T7-2400<br /> 18005' 91"251"8.2H25-T7-1800<br /> Shank H25×108mm, Hex 25, 7°24007' 10"251"6.4H25-T7-2440</p> <p>If you want to know more kinds of rock drilling tools china, please visit our website.</p> <p><a href="https://www.litechtools.com/uploads/image/20220428/14/tapered-drill-rods-1.jpg" rel="nofollow"><img src="https://www.litechtools.com/uploads/image/20220428/14/tapered-drill-rods-1.jpg" alt="tapered-drill-rods-1.jpg" /></a></p> 2024-02-02T15:31:31+0900 http://pastport.jp/user/LitianHeavyIndustry/timeline/Litian%20Heavy%20Industry%20Machinery%20Co.%2C%20Ltd/event/3iTdebFJ3BT LitianHeavyIndustry http://pastport.jp/user/LitianHeavyIndustry/timeline/Litian%20Heavy%20Industry%20Machinery%20Co.%2C%20Ltd/event/3iTdebFJ3BT#comments http://pastport.jp/user/LitianHeavyIndustry/timeline/Litian%20Heavy%20Industry%20Machinery%20Co.%2C%20Ltd/event/3iTdebFJ3BT Rock Drilling Tools In Quarrying & Aggregate(2024年02月02日) <p><a href="https://www.litechtools.com/stone-drilling-tools-in-quarrying-and-aggregate.html">https://www.litechtools.com/stone-drilling-tools-in-quarrying-and-aggregate.html</a></p> <p>Quarrying & Aggregate</p> <p>Top hammer rock stone drilling tools for Quarrying and Aggregate industry</p> <p>In quarry and aggregate industries, the application of top-hammer rock drilling rigs can improve operational efficiency, safety and stability, as well as adapt to the increasingly stringent emission reduction and environmental protection standards.</p> <p>Litian stone rock drilling tools china can be adapted to all kinds of top hammer drilling rigs used in quarrying and aggregate industries. For large-scale field blasting, consistent and precise drilling is required to produce crushed stones of the expected size. The basic drilling parameters such as the hole drilling location, straightness and depth are very important and need to be performed by high-quality, high-precision top hammer rock drilling tools. We have a complete set of mature technology in raw material processing, smelting, mechanical processing, heat treatment, etc., which greatly improves the fatigue strength impact force and accuracy of the stone drilling tools, thereby increasing productivity and enabling more efficient quarrying and aggregate collection.</p> <p>Whether in limestone quarry, sandstone quarry, quartz quarry, gravel quarry, marble quarry, granite quarry, or sand quarry, our rock drilling stone quarrying tools are available there. Our quarry rock drill bits, drill rods and shank adapters, couplings are worth having!</p> <p>Commonly used Stone Drilling Tools For Quarrying:<br /> ProductDescriptionModel No.<br /> T38 Threaded Rock Driling Tools<br /> Button BitT38 Thread, 76mm, Spherical buttons, 8 Gauge buttonsT38-7612ZC<br /> Button BitT38 Thread, 89mm, Spherical buttons, 8 Gauge buttonsT38-8913ZC<br /> Drill RodT38-T38 Thread, Length 3050mm, Round rodT38-D39-3050</p> <p>T45 Threaded Rock Driling Tools<br /> Retrac Button BitT45 Thread, 95mm, Spherical buttons, 8 Gauge buttons,T45-9514YF<br /> Retrac Button BitT45 Thread, 105mm, Spherical buttons, 8 Gauge buttons,T45-10514YF<br /> Drill RodT45 Thread, Length 3660mm, Round rodT45-D46-3660<br /> Coupling SleeveT45-T45 Thread, Length 210mm, Semi-bridge typeLT45-D63-210<br /> Coupling SleeveT45-T45 Thread, Length 210mm, Full-bridge typeLT45-D63-210R<br /> T51 Threaded Rock Driling Tools<br /> Retrac Button BitT51 Thread, 102mm, Spherical buttons, 8 Gauge buttonsT51-10215YF<br /> Button BitT51 Thread, 115mm, Spherical buttons, 8 Gauge buttonsT51-11514ZC<br /> MF Drill RodT51 Thread, Length 6705mm, Round rodMF-T51-D52-6705<br /> GT60 Threaded Rock Driling Tools<br /> Retrac Button BitGT60 Thread, 115mm, Spherical buttons, Drop centerGT60-11515YFA<br /> MF Drill RodGT60 Thread, Length 4265mm, Round rodMF-GT60-D60-4265<br /> MF Drill RodGT60 Thread, Length 6095mm, Round rodMF-GT60-D60-6095</p> <p>As one of rock cutting tools suppliers, we can provide kinds of related products for sale, if you are interested, please contact us.<br /> <a href="https://www.litechtools.com/uploads/image/20220322/quarry-stone-drilling-tools.jpg" rel="nofollow"><img src="https://www.litechtools.com/uploads/image/20220322/quarry-stone-drilling-tools.jpg" alt="quarry-stone-drilling-tools.jpg" /></a></p> 2024-02-02T15:30:59+0900 http://pastport.jp/user/LitianHeavyIndustry/timeline/Litian%20Heavy%20Industry%20Machinery%20Co.%2C%20Ltd/event/hovaX04M1lN LitianHeavyIndustry http://pastport.jp/user/LitianHeavyIndustry/timeline/Litian%20Heavy%20Industry%20Machinery%20Co.%2C%20Ltd/event/hovaX04M1lN#comments http://pastport.jp/user/LitianHeavyIndustry/timeline/Litian%20Heavy%20Industry%20Machinery%20Co.%2C%20Ltd/event/hovaX04M1lN Mining(2023年12月05日) <p><a href="https://www.litechtools.com/mining.html">https://www.litechtools.com/mining.html</a></p> <p>Litian supplies high-quality rock mining tools including top hammer drill string components and raise boring cutters for the mining industry. Over the past decade, we have improved the abrasion resistance and impact resistance of the rocking mining tools, elevating their quality to a first-class level domestically. Litian's tools have been successfully applied in various metal mines, improving production efficiency and reducing costs.</p> <p>Top hammer drilling tools and raise boring cutters, disc cutters for mining industry</p> <p>Litan As A Professional Mining Drilling Tools Manufacturer<br /> In the mining industry, high-efficiency and high-precision requirements for mining rock drilling tools are common demands from customers, which is also an important factor that can improve mining efficiency. Litian offers a wide range of high-quality top hammer drill string components (thread drill rods, thread button bits, shank adapters, coupling sleeves), and raise boring cutters for surface mining and underground mining.</p> <p>Ten years ago, our mining rock drilling tools were only used on a small scale in the mining industry due to the low popularity. Through customers' continuous feedback on product quality, as well as our continuous improvement of rock mining drilling tools, the abrasion resistance and impact resistance of our top hammer drilling tools have been continuously enhanced, and the mining rock tools quality has been improved to the domestic first-class level. Excellent quality and good reputation make us a firm foothold in the mining industry. The successful applications of our rock mining drilling tools to gold mines, silver mines, copper mines, iron mines, phosphorus mines, and other metal mines have improved production efficiency and saved comprehensive development costs for customers.</p> <p>In underground mines, economical and safe mechanized shaft construction has gradually replaced the traditional methods of drilling and blasting excavation. Raise boring machines are widely used in the drilling of different shafts, such as ventilation shafts, lifting shafts, ore passageways, escape channels, and so on. The raise boring cutters developed and produced by Litian can be suitable for all types of raise borer and can be mounted on the reaming cutter head with a diameter range of 1-8m.</p> <p>In order to quickly excavate deep deposits and improve the efficiency and safety of mining operations, equipment manufacturers have developed shaft boring extension machine (SBE) and shaft boring machine (SBM) that using disc cutters as the boring tools for the mining industry. Litian can design and manufacture high-quality disc cutters according to the structure of their cutterheads and the specific rock formations, and provide comprehensive technical support.</p> <p>Litian has experienced product application experts who can provide excellent configuration solutions of top hammer drilling tools, raise boring roller cutters, and disc cutters for open pit and underground mining according to the specific geological conditions, the use of rock drilling equipment, or the wear of the previously used rock drilling tools, so as to increase the service life of the mining rock drilling tool and improve the overall production efficiency.</p> <p>As one of the mature mining drilling tools manufacturers, Litian offers high-quality underground rock mining tools and surface mining tools, such as hard rock mining tools, mining drill rods, mining drill bits for sale at competitive prices. The different types of drill bits used in mining we provide can be your first choice! Contact us now!</p> <p>There are many rock cutting tools suppliers, but we are one of the best choices for you.</p> <p><a href="https://www.litechtools.com/uploads/image/20211207/rock-mining-tools.jpg" rel="nofollow"><img src="https://www.litechtools.com/uploads/image/20211207/rock-mining-tools.jpg" alt="rock-mining-tools.jpg" /></a></p> 2023-12-05T17:25:29+0900 http://pastport.jp/user/LitianHeavyIndustry/timeline/Litian%20Heavy%20Industry%20Machinery%20Co.%2C%20Ltd/event/pBggxKR56F1 LitianHeavyIndustry http://pastport.jp/user/LitianHeavyIndustry/timeline/Litian%20Heavy%20Industry%20Machinery%20Co.%2C%20Ltd/event/pBggxKR56F1#comments http://pastport.jp/user/LitianHeavyIndustry/timeline/Litian%20Heavy%20Industry%20Machinery%20Co.%2C%20Ltd/event/pBggxKR56F1 Litian Rock Tool Services(2023年12月05日) <p><a href="https://www.litechtools.com/litian-rock-tool-services.html">https://www.litechtools.com/litian-rock-tool-services.html</a></p> <p>Litian Rock Tool Services<br /> Litian has a large number of project experience in tunnel excavation, mining, construction, and other fields, we can provide customers with comprehensive quality services and technical support for the whole project.</p> <p>Provide product solutions<br /> We can design the most suitable product scheme for customers according to their construction conditions, project conditions, equipment used, geological conditions, used products wear situation, etc, so as to help customers improve work efficiency and save costs.</p> <p>Set up on-site workstations<br /> According to customer requirements, we can set up cutter tools workstations at the project construction site. The workstation is equipped with all the necessary tools and accessories to quickly and professionally repair worn products.</p> <p>Provide cutter tool services<br /> According to the construction conditions of the surrounding rock and the equipment used by the users, we can optimize the cutter tools design so that the users can achieve the fastest tunneling speed at a lower comprehensive cost.</p> <p>We can provide users with a whole process of tool inspection, configuration, replacement, testing, repair, and a series of work or training. we also can equip the project with professional technicians, providing service and support on-site, and establish tool databases to manage tools.</p> <p>Training and on-site service<br /> We can provide various ways of communication and training on tool preparation and service, as well as tool inspection, replacement, warehousing, and on-site staff training for construction units.</p> <p>According to the needs of customers, we can send experienced application experts and professional service team to the construction site to support your efficient tunneling and drilling.</p> <p>TBM tunneling contract<br /> We can contract according to TBM tunneling volume to help users significantly improve tunneling efficiency and reduce comprehensive tunneling costs.</p> <p>For more information about rock cutting tools and top hammer drilling tools, please feel free to contact us!<br /> <a href="https://www.litechtools.com/uploads/image/20211208/18/rock-drilling-tools-manufacturers_1638959995.jpg" rel="nofollow"><img src="https://www.litechtools.com/uploads/image/20211208/18/rock-drilling-tools-manufacturers_1638959995.jpg" alt="rock-drilling-tools-manufacturers_1638959995.jpg" /></a></p> 2023-12-05T17:25:03+0900 http://pastport.jp/user/LitianHeavyIndustry/timeline/Litian%20Heavy%20Industry%20Machinery%20Co.%2C%20Ltd/event/BdHAw9RQOrP LitianHeavyIndustry http://pastport.jp/user/LitianHeavyIndustry/timeline/Litian%20Heavy%20Industry%20Machinery%20Co.%2C%20Ltd/event/BdHAw9RQOrP#comments http://pastport.jp/user/LitianHeavyIndustry/timeline/Litian%20Heavy%20Industry%20Machinery%20Co.%2C%20Ltd/event/BdHAw9RQOrP Factory Show(2023年12月05日) <p><a href="https://www.litechtools.com/factory-show/">https://www.litechtools.com/factory-show/</a></p> <p>Litian Factories<br /> We have two production bases with a total of 290,625 square feet, in Huludao city, China. The two factories focus on the production of rock tool consumables - TBM cutter, Top hammer rock drilling tools (threaded button bits, drill rods, shank adapters, coupling sleeves), and raise boring cutters.</p> <p>If you are looking for a reliable button bit factory, don't hesitate to contact us!</p> <p>For more information about rock drilling tools china and top hammer drilling tools, please feel free to contact us!</p> <p><a href="https://www.litechtools.com/uploads/image/20211208/18/rock-drilling-tools-manufacturers_1638959995.jpg" rel="nofollow"><img src="https://www.litechtools.com/uploads/image/20211208/18/rock-drilling-tools-manufacturers_1638959995.jpg" alt="rock-drilling-tools-manufacturers_1638959995.jpg" /></a></p> 2023-12-05T17:24:37+0900 http://pastport.jp/user/LitianHeavyIndustry/timeline/Litian%20Heavy%20Industry%20Machinery%20Co.%2C%20Ltd/event/R8acI25aKH0 LitianHeavyIndustry http://pastport.jp/user/LitianHeavyIndustry/timeline/Litian%20Heavy%20Industry%20Machinery%20Co.%2C%20Ltd/event/R8acI25aKH0#comments http://pastport.jp/user/LitianHeavyIndustry/timeline/Litian%20Heavy%20Industry%20Machinery%20Co.%2C%20Ltd/event/R8acI25aKH0 COP1840 T45 T51 565mm Top Hammer Shank Adaptor(2023年12月05日) <p><a href="https://www.litechtools.com/cop1840-t45-t51-565mm-top-hammer-shank-adaptor.html">https://www.litechtools.com/cop1840-t45-t51-565mm-top-hammer-shank-adaptor.html</a></p> <p>Product Details:</p> <p>Product Name: COP1840 Shank Adaptor</p> <p>Place of Origin: China</p> <p>Brand Name: LITIAN</p> <p>Certification: ISO9001:2015</p> <p>Model No.: T45*8D52-565, T51*8D52-565</p> <p>Category: Shank Adapter</p> <p>Product Description</p> <p>Top hammer shank adaptor is mainly used in mining operations. It is connected with the connecting coupling, drill rod and drill bit to form a set of drilling string, and installed on the rock drill for rock drilling operations. Litian shank adaptors use high-quality alloy steel as raw material, adopt advanced processing equipment and processing technology, and undergo overall carburizing treatment to ensure the overall quality of the top hammer shank adaptors and can withstand the high impact force of drilling. We provide top hammer shank adaptor with various thread forms, such as T51 shank adaptor, t45 shank adaptor, T38 shank adapter for drill, etc.</p> <p>Top Hammer Shank Adaptor for COP1840<br /> T45, T51 shank adaptors for COP1840 rock drill are very commonly used, and they are also our very popular shank adaptors. They have the characteristics of flat, smooth section, perpendicular to the axis, closely matching with the drill bush of the rock drill, and long service life, and can be widely used in bench drilling.</p> <p>For more information about rock tools and rock mining tools, please feel free to contact us!</p> <p><a href="https://www.litechtools.com/uploads/image/20220506/14/shank-adapter-cop1840.jpg" rel="nofollow"><img src="https://www.litechtools.com/uploads/image/20220506/14/shank-adapter-cop1840.jpg" alt="shank-adapter-cop1840.jpg" /></a></p> 2023-12-05T17:24:11+0900 http://pastport.jp/user/LitianHeavyIndustry/timeline/Litian%20Heavy%20Industry%20Machinery%20Co.%2C%20Ltd/event/ZmTQehAW5Kl LitianHeavyIndustry http://pastport.jp/user/LitianHeavyIndustry/timeline/Litian%20Heavy%20Industry%20Machinery%20Co.%2C%20Ltd/event/ZmTQehAW5Kl#comments http://pastport.jp/user/LitianHeavyIndustry/timeline/Litian%20Heavy%20Industry%20Machinery%20Co.%2C%20Ltd/event/ZmTQehAW5Kl COP1838 T38 R38 R32 435mm China Shank Adapter(2023年12月05日) <p><a href="https://www.litechtools.com/cop1838-t38-435mm-shank-adapter.html">https://www.litechtools.com/cop1838-t38-435mm-shank-adapter.html</a></p> <p>Product Details:</p> <p>Product Name: COP1838 T38 Shank Adapter</p> <p>Place of Origin: China</p> <p>Brand Name: LITIAN</p> <p>Certification: ISO9001:2015</p> <p>Model No.: T38*8D38-435</p> <p>Category: Shank Adapter</p> <p>Product Description<br /> Litian produces various types of rock drill shank shanks, such as T38 shank adapter, R38 shank adapter, R32 shank adapter, T45 shank adapter, etc., which can be applied to various brands of rock drills.</p> <p>T38-435mm shank adapter is suitable for COP1838, COP1550, COP1440 and other rock drills. The material of this China shank adapter is made of high quality high-strength alloy structural steel, and the surface-strengthened hot processing technology can ensure that the impacted end is not deformed and has good working performance</p> <p>Litian Heavy Industry Machinery Co., Ltd (Litian Rock Tools) is a professional rock drilling tools ltd. Our products and services are divided into three categories: top hammer bits, TBM cutters, raise boring drilling tools<br /> <a href="https://www.litechtools.com/uploads/image/20220506/14/t38-shank-adapter-cop1838.jpg" rel="nofollow"><img src="https://www.litechtools.com/uploads/image/20220506/14/t38-shank-adapter-cop1838.jpg" alt="t38-shank-adapter-cop1838.jpg" /></a></p> 2023-12-05T17:23:44+0900 http://pastport.jp/user/LitianHeavyIndustry/timeline/Litian%20Heavy%20Industry%20Machinery%20Co.%2C%20Ltd/event/HPvqWy6ta9C LitianHeavyIndustry http://pastport.jp/user/LitianHeavyIndustry/timeline/Litian%20Heavy%20Industry%20Machinery%20Co.%2C%20Ltd/event/HPvqWy6ta9C#comments http://pastport.jp/user/LitianHeavyIndustry/timeline/Litian%20Heavy%20Industry%20Machinery%20Co.%2C%20Ltd/event/HPvqWy6ta9C COP1238 R32 T38 T45 Shank Adapter Striking Bar(2023年12月05日) <p><a href="https://www.litechtools.com/cop1238-r32-t38-t45-shank-adapter-striking-bar.html">https://www.litechtools.com/cop1238-r32-t38-t45-shank-adapter-striking-bar.html</a></p> <p>COP1238 R32 T38 T45 Shank Adapter Striking Bar<br /> Product Details:</p> <p>Product Name: COP1238 Shank Adapter Striking Bar</p> <p>Place of Origin: China</p> <p>Brand Name: LITIAN</p> <p>Certification: ISO9001:2015</p> <p>Category: Shank Adapter</p> <p>Product Description</p> <p>Litian produces various types of shank adaptors, also called striking bar, which can be applied to various brands of rock drills. We also can customize according to customer needs.</p> <p>Our rock drill shank adapters are available for:</p> <p>1. Thread: R25, R28, R32, R35, R38, T38, T45, T51, GT60, ST58, ST68</p> <p>2. Length: 370mm~835mm</p> <p>3. Applicable rock drill: Atlas Copco (Epiroc), Sandvik, Furukawa, Ingersoll-Rand, Montabert, Boart LongYear, etc.</p> <p>4. Packing: In bundles, or in wooden case .</p> <p>Striking Bars for COP1238 1038 1036<br /> The following striking bars are mainly suitable for Atlas Copco COP1238, COP1038 and COP1036 rock drills, which are durable and cost-effective.</p> <p>Litian Heavy Industry Machinery Co., Ltd (Litian Rock Tools) is a professional rock tool company. Our products and services are divided into three categories: top hammer drill tool, TBM cutters, raise boring drilling tools<br /> <a href="https://www.litechtools.com/uploads/image/20220531/16/t45-shank-adapter.jpg" rel="nofollow"><img src="https://www.litechtools.com/uploads/image/20220531/16/t45-shank-adapter.jpg" alt="t45-shank-adapter.jpg" /></a></p> 2023-12-05T17:23:13+0900 http://pastport.jp/user/LitianHeavyIndustry/timeline/Litian%20Heavy%20Industry%20Machinery%20Co.%2C%20Ltd/event/e81aZqb7Tag LitianHeavyIndustry http://pastport.jp/user/LitianHeavyIndustry/timeline/Litian%20Heavy%20Industry%20Machinery%20Co.%2C%20Ltd/event/e81aZqb7Tag#comments http://pastport.jp/user/LitianHeavyIndustry/timeline/Litian%20Heavy%20Industry%20Machinery%20Co.%2C%20Ltd/event/e81aZqb7Tag Construction Drill and Blast(2023年12月05日) <p><a href="https://www.litechtools.com/construction-drill-and-blast-hole-bits.html">https://www.litechtools.com/construction-drill-and-blast-hole-bits.html</a></p> <p>Top hammer rock drilling tools for Construction Drill and Blast</p> <p>With the attention and investment of the infrastructure industry at home and abroad, in many construction industries with high construction difficulty and high risk, the mechanized drilling and blasting construction of rock drilling rigs have gradually replaced the pneumatic drilling and blasting construction with more personnel, high labor intensity, large safety risk, and low efficiency.</p> <p>Litian provides a range of top hammer drilling tools (threaded drill bits, drill rods, shank rods, couplings, blast hole bits) for the construction drilling and blasting industry. Our rock drilling tools have been widely used in mining, quarries, tunnels, railways, roads, foundations, pipelines, and various civil engineering projects.</p> <p>Our rock drilling tools are made of the toughest alloy structural steel and cemented carbide to provide maximum drilling performance. Our drill bits, drill rods, shank adapters, and coupling sleeves are well matched, which can minimize the loss in the energy transmission process, while ensuring the verticality of the drilling hole, so that the impact energy can be concentrated on the rock, to achieve accurate drilling purposes, reduce the cost of drilling per meter.</p> <p>Whether in terms of hole drilling quality, service life of rock drilling tools, or reducing total drilling & blasting costs, we are an ideal choice for you!</p> <p>If you are looking for a reliable drilling tools factory, don't hesitate to contact us!</p> <p><a href="https://www.litechtools.com/uploads/image/20211215/litian-tools-for-drilling-holes-in-rocks.jpg" rel="nofollow"><img src="https://www.litechtools.com/uploads/image/20211215/litian-tools-for-drilling-holes-in-rocks.jpg" alt="litian-tools-for-drilling-holes-in-rocks.jpg" /></a></p> 2023-12-05T17:22:39+0900 http://pastport.jp/user/LitianHeavyIndustry/timeline/Litian%20Heavy%20Industry%20Machinery%20Co.%2C%20Ltd/event/ccXXOkJA6qb LitianHeavyIndustry http://pastport.jp/user/LitianHeavyIndustry/timeline/Litian%20Heavy%20Industry%20Machinery%20Co.%2C%20Ltd/event/ccXXOkJA6qb#comments http://pastport.jp/user/LitianHeavyIndustry/timeline/Litian%20Heavy%20Industry%20Machinery%20Co.%2C%20Ltd/event/ccXXOkJA6qb Extension Rod(2023年04月10日) <p><a href="https://www.litechtools.com/products/extension-rod/">https://www.litechtools.com/products/extension-rod/</a></p> <p>Extension rod, with male threads at both ends, connects with a shank adapter through a coupling sleeve. drill extension rod can divide into round extension rods and hexagonal extension rods, and is widely used in bench drilling, bolt hole drilling, production drilling, long hole drilling, small hole drilling and other fields.</p> <p>Litian owns a large scale rock drill bits factory to produce and provide high quality rock drill bit extension rods, such as R22 drill extension rod, R25 extension rod, R28 extension rod, R32 extension rod, R38 extension drill rod, T38 threaded extension rod, T45 extension rod, T51 rod, SR25 extension rod.</p> <p>Specification Of Extension Drill Rod<br /> R22<br /> LengthDiameterWeightModel No.Part No.<br /> [mm][ft-in][mm][in][kg]<br /> 8002' 7″227/8″2.4R22-H22-800601-8108-202<br /> Extension rod, Hex 22, R22 - R2212003' 11″227/8″3.6R22-H22-1200601-8112-202<br /> 16005' 3″227/8″3.8R22-H22-1600601-8116-202</p> <p>As one of rock drilling tools manufacturers, we will do our best to meet all the needs of customers.</p> <p><a href="https://www.litechtools.com/uploads/image/20211202/15/drill-bit-extension-rod.jpg" rel="nofollow"><img src="https://www.litechtools.com/uploads/image/20211202/15/drill-bit-extension-rod.jpg" alt="drill-bit-extension-rod.jpg" /></a><br /> <a href="https://www.litechtools.com/uploads/image/20211202/15/drill-extension-rod.jpg" rel="nofollow"><img src="https://www.litechtools.com/uploads/image/20211202/15/drill-extension-rod.jpg" alt="drill-extension-rod.jpg" /></a><br /> <a href="https://www.litechtools.com/uploads/image/20211202/15/extension-drill-rod.jpg" rel="nofollow"><img src="https://www.litechtools.com/uploads/image/20211202/15/extension-drill-rod.jpg" alt="extension-drill-rod.jpg" /></a><br /> <a href="https://www.litechtools.com/uploads/image/20211202/15/rock-drill-extension-rod.jpg" rel="nofollow"><img src="https://www.litechtools.com/uploads/image/20211202/15/rock-drill-extension-rod.jpg" alt="rock-drill-extension-rod.jpg" /></a></p> 2023-04-04T17:35:05+0900 http://pastport.jp/user/LitianHeavyIndustry/timeline/Litian%20Heavy%20Industry%20Machinery%20Co.%2C%20Ltd/event/jyRJdcPt9nq LitianHeavyIndustry http://pastport.jp/user/LitianHeavyIndustry/timeline/Litian%20Heavy%20Industry%20Machinery%20Co.%2C%20Ltd/event/jyRJdcPt9nq#comments http://pastport.jp/user/LitianHeavyIndustry/timeline/Litian%20Heavy%20Industry%20Machinery%20Co.%2C%20Ltd/event/jyRJdcPt9nq Drill Rod(2023年04月09日) <p><a href="https://www.litechtools.com/products/drill-rod/">https://www.litechtools.com/products/drill-rod/</a></p> <p>Drill rod, also known as hydraulic drill rod, heavy duty drill rod in top hammer rock drilling. The threaded drill rod for sale is connected with shank adapter and drill bit through the threads on both sides of the rod body, and transmits the impact energy and torque of the hydraulic rock drill to the drill bit for rock drilling.</p> <p>Different Types Of Litian Threaded Drill Rod For Sale<br /> To improve the efficiency and quality of rock drilling, the rock drill steel rods for sale are a crucial piece of rock drilling tools china, which is why you cannot compromise on quality. As a mature rock drill rod factory, Litian offers durable and best quality mining drill rod, tunneling drill rod for sale, borehole drilling rod at affordable prices, which is a key factor in ensuring rock drilling quality. A wide range of top hammer rods is offered by Litian including R25 drill rod, R32 drill rod, T38 drill rod, T45 drill rod, T51 drill rod, ST58 drill rod, etc. Check below to get more about our rock drilling rods.</p> <p>Extension Rod<br /> Extension rod, with male threads at both ends,connects with a shank adapterthrough a coupling sleeve. It can divide into round extension rods and hexagonal extension rods.</p> <p>MF Rod<br /> MF rod, also known as speedrod, has a male thread at one end and a female thread at the other end. It can directly connect to the shank adapter without the aid of a coupling sleeve.</p> <p>Drifter Rod<br /> Drifter rod is mainly used on the full hydraulic drifting jumbo. It can be used for roadway excavation blasting and anchor hole drilling in underground mine.</p> <p>Drill Tube & Guide Tube<br /> In top hammer drilling, guide tube and drill tube are mainly used for surface bench drilling and underground long hole drilling. We can provide T38 guide tube, T45 guide tube, and T51 guide tube.</p> <p>Drill Rod Specifications</p> <p>ProductTop Hammer Rock Drilling Tool - Drill Rod<br /> Other Namestop hammer drill rod, threaded drill rod, rock drill rod, mining drill rod, thread rock drill rod<br /> MaterialStructural Alloy Steel<br /> ApplicationTunnelling, Mining, Quarrying, Blasting and Infrastructure Construction<br /> Facedrilling and Bolting, Bench Drilling, Production drilling, Long hole drilling, Drifting<br /> ThreadR22, R25, R28, R32, R35, R38, T38, T45, T51, GT60, ST58, ST68, SR28, SR35, etc.<br /> Rod TypeMM rod (Male/Male thread): Extension rod, Drifter rod<br /> MF rod (Male/Female thread): Speedrod, MF drifter rod<br /> Drill tube, Guide tube<br /> Body TypeHexagonal drill rod, Round drill rod<br /> Diameter20mm~87mm<br /> Length260mm~6400mm<br /> Custom DesignAcceptable</p> <p>Drill Rods Advantages<br /> High quality steel</p> <p>Our drill rods are made of high-quality alloy steel, which perfectly balances the wear resistance and flexibility through a special heat treatment process, can meet the requirements of hard rock drilling, and has a longer service life.</p> <p>Advanced manufacturing technology</p> <p>Our drill rods adopt a complete set of mature technology such as advanced surface treatment technology, smelting technology, and mechanical processing technology, which greatly reduces the loss of energy in transmission and makes the drilling speed very fast. We have advanced thread manufacturing technology, which can effectively reduce the risk of indentation and fracture at the thread end, making it easier to connect and disassemble drill rods, drill bits and shank adapters, resulting in shorter downtime, straighter drilling holes and higher production efficiency. The escrape groove in the transition area between the thread and the rod body is the weakest area of the drill rod, where the drill rod section is the smallest, not only to bear the high-frequency tensile and compressive normal stress, high torsional stress, but also to withstand the additional bending stress caused by the weight of the drill rod and the rock drilling operations. In drilling practice, Litian continuously optimizes the processing technology of the escrape groove, and has our own unique processing technology, which has minimized the risk of breakage at the escrape groove.</p> <p>Strict quality control</p> <p>We strictly control all aspects of production to ensure that high-quality drill rods are presented to customers.</p> <p>What Is Drill Rod Made Of?</p> <p>Litian top hammer drill tool is made of high-quality alloy structure hollow rock drill steel (high chromium-molybdenum-nickel alloy steel) as raw material, its proof strength Rp0.2 is 900MPa-1000MPa, tensile strength Rm is 1250MPa-1350MPa, and hardness is 37-44 HRC. Our drill rods have the advantages of high wear resistance, high fatigue strength, high toughness, and long service life.</p> <p>What Is Drill Rods Used For?</p> <p>Litian top hammer drill rod is used for rock drilling operations, and is widely used in production drilling, face drilling, bolting, bench drilling, drifting, long-hole drilling in the field of mining, tunneling, quarrying, and construction.</p> <p>If you want to buy drill rod, please contact us.</p> <p><a href="https://www.litechtools.com/uploads/image/20211122/15/extension-rod.jpg" rel="nofollow"><img src="https://www.litechtools.com/uploads/image/20211122/15/extension-rod.jpg" alt="extension-rod.jpg" /></a><br /> <a href="https://www.litechtools.com/uploads/image/20211122/14/mf-rod.jpg" rel="nofollow"><img src="https://www.litechtools.com/uploads/image/20211122/14/mf-rod.jpg" alt="mf-rod.jpg" /></a><br /> <a href="https://www.litechtools.com/uploads/image/20211122/15/drifter-rod.jpg" rel="nofollow"><img src="https://www.litechtools.com/uploads/image/20211122/15/drifter-rod.jpg" alt="drifter-rod.jpg" /></a><br /> <a href="https://www.litechtools.com/uploads/image/20211201/16/st58-st68-drill-tube_1638346541.jpg" rel="nofollow"><img src="https://www.litechtools.com/uploads/image/20211201/16/st58-st68-drill-tube_1638346541.jpg" alt="st58-st68-drill-tube_1638346541.jpg" /></a></p> 2023-04-04T17:34:33+0900 http://pastport.jp/user/LitianHeavyIndustry/timeline/Litian%20Heavy%20Industry%20Machinery%20Co.%2C%20Ltd/event/KiBxNMJJycm LitianHeavyIndustry http://pastport.jp/user/LitianHeavyIndustry/timeline/Litian%20Heavy%20Industry%20Machinery%20Co.%2C%20Ltd/event/KiBxNMJJycm#comments http://pastport.jp/user/LitianHeavyIndustry/timeline/Litian%20Heavy%20Industry%20Machinery%20Co.%2C%20Ltd/event/KiBxNMJJycm Drifter Rod(2023年04月08日) <p><a href="https://www.litechtools.com/products/drifter-rod/">https://www.litechtools.com/products/drifter-rod/</a></p> <p>Drifter rod is mainly used on the full hydraulic drifting jumbo. This drifting drill rod can be used for roadway excavation blasting and anchor hole drilling in underground mine, as well as used for the excavation of traffic tunnels, hydropower engineering diversion tunnels,underground engineering, etc.</p> <p>Litian is a well-established drifter rod suppliers, we have two drifter rod factory in China. Our drifter rod has excellent performance in wear resistance, flexibility, and service life, and can fully meet the drilling requirements of various rock hardness.</p> <p>We offer drifter mining drill rods with various threads, such as R32-R28 drifter rod, R38-R32 drifter rod, T38-R32 drifter speed rod, T38-SR35 drifter rod, etc.</p> <p>Drifter Rod Specifications<br /> R32 - R25<br /> LengthDiameterWeightModel No.Part No.<br /> [mm][ft-in][mm][in][kg]<br /> 18706' 1 5/8″251″6.9R32/R25-H25-1870605-5919-202<br /> Drifter rod, Hex 25, R32 - R2521757' 1 5/8″251″8.4R32/R25-H25-2175605-5922-202<br /> 24758' 1 1/2″251″9.5R32/R25-H25-2475605-5925-202<br /> 26308' 7 1/2″251″10R32/R25-H25-2630605-5926-202<br /> 27859' 1 5/8″251″11R32/R25-H25-2785605-5928-202<br /> 29359' 7 1/2″251″16R32/R25-H25-2935605-5929-202<br /> 309010' 1 5/8″251″12R32/R25-H25-3090605-5931-202<br /> 334010' 11 1/2″251″12R32/R25-H25-3340605-5933-202<br /> 370012' 1 5/8″251″14R32/R25-H25-3700605-5937-202<br /> 8' 7 1/2″281 1/8″14R32/R25-H28-2630605-8326-202<br /> 2630<br /> Drifter rod, Hex 28, R32 - R25309010' 1 5/8″281 1/8″16R32/R25-H28-3090605-8331-202</p> <p>If you want to find a reliable drill rod factory, please contact us, and we will be your best partner.</p> <p><a href="https://www.litechtools.com/uploads/image/20211207/15/drifter-rod.jpg" rel="nofollow"><img src="https://www.litechtools.com/uploads/image/20211207/15/drifter-rod.jpg" alt="drifter-rod.jpg" /></a><br /> <a href="https://www.litechtools.com/uploads/image/20211207/15/drifting-drill-rod.jpg" rel="nofollow"><img src="https://www.litechtools.com/uploads/image/20211207/15/drifting-drill-rod.jpg" alt="drifting-drill-rod.jpg" /></a><br /> <a href="https://www.litechtools.com/uploads/image/20211207/15/drill-rod-price.jpg" rel="nofollow"><img src="https://www.litechtools.com/uploads/image/20211207/15/drill-rod-price.jpg" alt="drill-rod-price.jpg" /></a><br /> <a href="https://www.litechtools.com/uploads/image/20211207/15/drill-rods-for-sale.jpg" rel="nofollow"><img src="https://www.litechtools.com/uploads/image/20211207/15/drill-rods-for-sale.jpg" alt="drill-rods-for-sale.jpg" /></a></p> 2023-04-04T17:34:00+0900 http://pastport.jp/user/LitianHeavyIndustry/timeline/Litian%20Heavy%20Industry%20Machinery%20Co.%2C%20Ltd/event/wQZJz13dU0r LitianHeavyIndustry http://pastport.jp/user/LitianHeavyIndustry/timeline/Litian%20Heavy%20Industry%20Machinery%20Co.%2C%20Ltd/event/wQZJz13dU0r#comments http://pastport.jp/user/LitianHeavyIndustry/timeline/Litian%20Heavy%20Industry%20Machinery%20Co.%2C%20Ltd/event/wQZJz13dU0r Double Disc Cutter(2023年04月07日) <p><a href="https://www.litechtools.com/products/double-disc-cutter.html">https://www.litechtools.com/products/double-disc-cutter.html</a></p> <p>Double disc cutter, also known as double disk, is a kind of disc cutter with two cutter rings, which is mounted on the front and gauge area of the cutter head. It is mostly used to break soft rock with low uniaxial compressive strength (UCS≤70Mpa) and mixed ground.</p> <p>Double Disc Cutter Specification<br /> Double Disc CutterDiameterBearing CapacityCutter ringStructure<br /> product[inch][mm][Tonne]<br /> 20"50835, 42OptionalAssembly<br /> 19"48335, 42OptionalAssembly / Monoblock<br /> 18"45728OptionalAssembly / Monoblock<br /> 17"43228OptionalAssembly / Monoblock<br /> 15 1/2"39422OptionalAssembly / Monoblock<br /> 1435620OptionalAssembly / Monoblock<br /> 12"30516OptionalAssembly / Monoblock<br /> 11"28013OptionalAssembly / Monoblock<br /> 10"25010OptionalAssembly / Monoblock<br /> 9"2209OptionalMonoblock<br /> 8"2008OptionalMonoblock<br /> 7"1808OptionalMonoblock<br /> 6 1/2"1655OptionalMonoblock<br /> 6"1504OptionalMonoblock</p> <p>As one of rock drilling tools manufacturers, we can offer sorts of rock drilling tools for sale, anything you need, please contact us.</p> <p><a href="https://www.litechtools.com/uploads/image/20211124/17/tbm-double-disc-cutter.jpg" rel="nofollow"><img src="https://www.litechtools.com/uploads/image/20211124/17/tbm-double-disc-cutter.jpg" alt="tbm-double-disc-cutter.jpg" /></a><br /> <a href="https://www.litechtools.com/uploads/image/20211124/13/double-disc-cutter_1637733506.jpg" rel="nofollow"><img src="https://www.litechtools.com/uploads/image/20211124/13/double-disc-cutter_1637733506.jpg" alt="double-disc-cutter_1637733506.jpg" /></a><br /> <a href="https://www.litechtools.com/uploads/image/20211124/17/double-disk-cutter_1637747649.jpg" rel="nofollow"><img src="https://www.litechtools.com/uploads/image/20211124/17/double-disk-cutter_1637747649.jpg" alt="double-disk-cutter_1637747649.jpg" /></a><br /> <a href="https://www.litechtools.com/uploads/image/20220729/15/tbm-cutter-double-disk_1659081054.jpg" rel="nofollow"><img src="https://www.litechtools.com/uploads/image/20220729/15/tbm-cutter-double-disk_1659081054.jpg" alt="tbm-cutter-double-disk_1659081054.jpg" /></a></p> 2023-04-04T17:33:26+0900 http://pastport.jp/user/LitianHeavyIndustry/timeline/Litian%20Heavy%20Industry%20Machinery%20Co.%2C%20Ltd/event/WSiGw7Yo2N0 LitianHeavyIndustry http://pastport.jp/user/LitianHeavyIndustry/timeline/Litian%20Heavy%20Industry%20Machinery%20Co.%2C%20Ltd/event/WSiGw7Yo2N0#comments http://pastport.jp/user/LitianHeavyIndustry/timeline/Litian%20Heavy%20Industry%20Machinery%20Co.%2C%20Ltd/event/WSiGw7Yo2N0 Coupling Sleeve(2023年04月06日) <p><a href="https://www.litechtools.com/products/coupling-sleeve.html">https://www.litechtools.com/products/coupling-sleeve.html</a></p> <p>Coupling Sleeve is a sleeve-shaped rock drilling component with internal threads for connecting shank adapter and drill rod, or drill rod and drill rod. We produce and provide three types of drill rod couplings – semi bridge couplings, full bridge couplings, and crossover couplings, which can meet the requirements of all applications.</p> <p>Product Specification<br /> ProductTop Hammer Rock Drilling Tool - Coupling Sleeves<br /> Other NamesCouplings, Drill Rod Couplings, Drill Coupling Sleeve,<br /> MaterialStructural Alloy Steel<br /> ApplicationTunneling , Mining , Quarrying, Blasting and Infrastructure Construction<br /> Facedrilling and Bolting, Bench Drilling, Production drilling, Long hole drilling, Drifting<br /> ThreadR25, R32, R35, R38, T38, T45, T51<br /> Coupling TypeStandard Couplings (Semi bridge Couplings)<br /> Full bridge Couplings<br /> Crossover Couplings (Adapter Couplings, Reduction Couplings, Reducer Coupling)<br /> Diameter33~72mm<br /> Length150mm~235mm<br /> Custom DesignThread, Diameter, Length can be customized</p> <p>Standard coupling sleeve<br /> Standard coupling sleeve, also known as semi bridge coupling sleeve, has a section of the bridge without a thread in the middle. The threaded part of the drill pipe cannot be screwed through the bridge part of the coupling, and the end of the thread can closely adhere to the casing bridge zone. Standard coupling sleeve is particularly suitable for high-torque drilling rigs. Most rope thread (R thread) and trapezoidal thread (T thread) coupling sleeves are with half-bridge type. The half-bridge type is by far the most widely used couplings.</p> <p>Full bridge coupling sleeve<br /> Full bridge coupling sleeve can completely eliminate the looseness of the coupling sleeves along with the threaded connection. It is mainly used in surface mining, with better disassembly characteristics, firmer connections, and almost no clamping situation.</p> <p>Crossover couplings<br /> Crossover couplings are used to convert different thread types or thread diameter sizes.</p> <p>Coupling Sleeve Product Parameter<br /> ThreadLengthDiameterWeightModel No.Part No.<br /> [mm][in][mm][in][kg]<br /> R321606 1/4"451 3/4"1LR32-D45-160705-0145-160<br /> R381807 1/8"562 13/64"2LR38-D56-180707-0156-180<br /> T381907 1/2"562 13/64"1.9LT38-D56-190722-0156-190<br /> T452108 1/8"632 31/64"2.7LT45-D63-210723-0163-210<br /> T512359 1/4"712 51/64"3.8LT51-D71-235724-0171-235<br /> R38-R321907 1/2"562 13/64"2.2LR38/R32-D56-190707-5156-190<br /> T38-R321907 1/2"562 13/64"2.2LT38/R32-D56-190722-5156-190<br /> T38-R381907 1/2"562 13/64"2.5LT38/R38-56-190722-0756-190<br /> T51-T452258 7/8"712 51/64"4.5LT51/T45-D71-225724-5371-225</p> <p>As a rock drill bits factory, we will do our best to meet all the needs of customers.</p> <p><a href="https://www.litechtools.com/uploads/image/20211124/10/threaded-rod-coupling-sleeve.jpg" rel="nofollow"><img src="https://www.litechtools.com/uploads/image/20211124/10/threaded-rod-coupling-sleeve.jpg" alt="threaded-rod-coupling-sleeve.jpg" /></a><br /> <a href="https://www.litechtools.com/uploads/image/20211124/10/coupling-sleeve.jpg" rel="nofollow"><img src="https://www.litechtools.com/uploads/image/20211124/10/coupling-sleeve.jpg" alt="coupling-sleeve.jpg" /></a><br /> <a href="https://www.litechtools.com/uploads/image/20211124/10/t38-coupling-sleeve.jpg" rel="nofollow"><img src="https://www.litechtools.com/uploads/image/20211124/10/t38-coupling-sleeve.jpg" alt="t38-coupling-sleeve.jpg" /></a><br /> <a href="https://www.litechtools.com/uploads/image/20211124/10/coupling-sleeves.jpg" rel="nofollow"><img src="https://www.litechtools.com/uploads/image/20211124/10/coupling-sleeves.jpg" alt="coupling-sleeves.jpg" /></a></p> 2023-04-04T17:32:46+0900 http://pastport.jp/user/LitianHeavyIndustry/timeline/Litian%20Heavy%20Industry%20Machinery%20Co.%2C%20Ltd/event/uCqRtfMH1zE LitianHeavyIndustry http://pastport.jp/user/LitianHeavyIndustry/timeline/Litian%20Heavy%20Industry%20Machinery%20Co.%2C%20Ltd/event/uCqRtfMH1zE#comments http://pastport.jp/user/LitianHeavyIndustry/timeline/Litian%20Heavy%20Industry%20Machinery%20Co.%2C%20Ltd/event/uCqRtfMH1zE Button Bit(2023年04月05日) <p><a href="https://www.litechtools.com/products/button-bit/">https://www.litechtools.com/products/button-bit/</a></p> <p>Threaded button bits for rock drilling, a kind of top hammer drill bit and rock drill bit, is mainly used with hydraulic drill rods (pneumatic drill rods) and hydraulic rock drills (or pneumatic rock drills) in top hammer drilling. Button bits rock drilling use different forms of threads to cooperate with the drill rod to perform drilling operations.</p> <p>Types of Button Bits for Sale<br /> Litian, a reliable button bits factory, offers high-quality top hammer button rock drill bits for sale at competitive prices. We have the most of threaded button bits that you need, such as R32 drill button bit, t38 drill bits, t45 bits, T51 bits, etc. Check more about our hard rock drill bits and soft rock drill bits for hammer drill in the following!</p> <p>Threaded Button Bit<br /> In top hammer threaded rock drilling tools china, standard threaded button bit is the most widely used drill bit, which can be applied to all rock conditions. Our standard button bits are R25 button bit, R32 button bit...</p> <p>Retrac Button Bit<br /> Retrac button bits are mainly used in loose rock mass with relatively broken rock. The retrac skirt design can assist in retrieving the drill tool, reduce the phenomenon of bit stuck and buried.</p> <p>Reaming Bit<br /> Reaming bit is a hole opener that drills a pilot hole to a certain depth and then reams the hole to a larger diameter. It is mainly used for center hole reaming in long hole drilling.</p> <p>Button Bit Product Specification<br /> ProductTop Hammer Rock Drilling Tool - Button Bit<br /> Other Namestop hammer drill bits, threaded button bit, threaded drill bit, hard rock drilling bits, button drill bit, rock drill bits, mining drill bits<br /> MaterialStructural Alloy Steel, Tugestun Carbide<br /> ApplicationTunnelling, Mining, Quarrying, Blasting and Infrastructure Construction<br /> Facedrilling and Bolting, Bench Drilling, Production drilling, Long hole drilling, Drifting<br /> ThreadR25, R28, R32, R35, R38, T38, T45, T51, GT60, ST58, ST68, SR28, SR35...<br /> Bit TypeStandard button bit, Retrac button bit, Pilot Reaming Bit, Dome reaming bit<br /> Skirt DesignStandard skirt, Retrac skirt, Straightrac type, Heavy duty skirt<br /> Face DesignFlat face, Drop center face, Convex face, Uni-face, Reaming type, Cross type, X type<br /> Button ShapeSpherical buttons, Ballistic buttons, Conical buttons, Composite buttons<br /> Head Diameter28mm~152mm<br /> Custom DesignAcceptable</p> <p>We offer different threaded Button Bit Types including standard button bit, retrac button bit, pilot reamer bit, spherical button drill bit, ballistic button bit, flat face drill bit, drop center drill bit etc. What's more, custom design of hard rock drilling bits is supported.</p> <p>Button Bits Rock Drilling Advantages</p> <p>High-quality raw material<br /> Our button rock drill bits are made of high-quality steel and cemented carbide as raw materials. After a special heat treatment process, the drilling rig drill bit has a long service life and can minimize the loss of impact energy during transmission.</p> <p>Advanced button fixation technology<br /> The drilling rig drill bit adopts advanced button fixation technology. The fixation force is uniform and it is not easy to lose buttons. At the same time, it can ensure the verticality of the drilling hole, so that the impact energy can be concentrated on the rock.</p> <p>Advanced thread manufacturing process<br /> Our drill button bits are with advanced thread manufacturing technology. Threads manufactured with precise tolerances enable the drill bit and the drill rod to be connected more tightly, and can transmit impact energy more effectively, while greatly reducing the risk of dents and fractures at the thread end, and improving overall production efficiency. In actual use, many of our thread button bits, such as R32 button bit, T38 drill bits, T45 drill bits, T51 bits are all have good performance.</p> <p>Excellent rock drilling bits design<br /> Litian is one of the experienced drill bit manufacturers in China and we have many face designs of drill button bits suitable for different rock formations, which can meet the drilling requirements of different hardness rocks, improve drilling efficiency and reduce costs.</p> <p>Strict quality control<br /> All button drill bits for rock drilling have implemented strict quality control to ensure that each button drill bit is of high quality.</p> <p>Button Bits Selection</p> <p>For different rock formations and drilling requirements, button rock drill bits need to be equipped with different types of bit faces, skirts and carbides.</p> <p><a href="https://www.litechtools.com/uploads/image/20211122/11/threaded-button-bit.jpg" rel="nofollow"><img src="https://www.litechtools.com/uploads/image/20211122/11/threaded-button-bit.jpg" alt="threaded-button-bit.jpg" /></a><br /> <a href="https://www.litechtools.com/uploads/image/20211122/11/retrac-button-bit_1637550273.jpg" rel="nofollow"><img src="https://www.litechtools.com/uploads/image/20211122/11/retrac-button-bit_1637550273.jpg" alt="retrac-button-bit_1637550273.jpg" /></a><br /> <a href="https://www.litechtools.com/uploads/image/20211122/11/reaming-bit_1637551768.jpg" rel="nofollow"><img src="https://www.litechtools.com/uploads/image/20211122/11/reaming-bit_1637551768.jpg" alt="reaming-bit_1637551768.jpg" /></a></p> 2023-04-04T17:32:08+0900 http://pastport.jp/user/LitianHeavyIndustry/timeline/Litian%20Heavy%20Industry%20Machinery%20Co.%2C%20Ltd/event/0UFjdThUEYg LitianHeavyIndustry http://pastport.jp/user/LitianHeavyIndustry/timeline/Litian%20Heavy%20Industry%20Machinery%20Co.%2C%20Ltd/event/0UFjdThUEYg#comments http://pastport.jp/user/LitianHeavyIndustry/timeline/Litian%20Heavy%20Industry%20Machinery%20Co.%2C%20Ltd/event/0UFjdThUEYg Litian Rock Tools(2023年04月04日) <p><a href="https://www.litechtools.com/products/">https://www.litechtools.com/products/</a></p> <p>We are a Chinese manufacturer of mining drilling tools for drill & blast and rock excavation industries. Our TBM cutters, top hammer drilling tools, and raise boring cutters can be used in all geological types, from hard rock to plain sand and gravel.</p> <p>Through continuous research and development in key areas such as materials, heat treatment, design and manufacturing processes, as well as extensive field testing and continuous improvement in a variety of rock conditions, Litian products are being recognized by more and more users, and become the first choice for users to deal with complex rock drilling, blasting, and excavation.</p> <p>Different Rock Tools - Drilling Consumables<br /> With extensive experience in manufacturing and supplying high-quality rock tools, Litian offers a wide range of advanced soft and hard rock drilling tools and excavation tools to meet all your needs and requirements. The safety and sustainability of our drill rock tools will always be a top priority for Litian. Whether it is TBM cutters, top hammer drilling tools, or raise boring cutters, you will find the satisfying products at Litian!</p> <p>Why Choose Litian Rock Drilling Tools & Excavation Tools?<br /> Production Bases</p> <p>Own two factories with production areas of 27,000㎡, located in Huludao City, the origin area of rock mining tools in China.</p> <p>Advanced Technology</p> <p>Equipped with advanced production and processing equipment. Our mechanical processing technology and heat treatment technology draw lessons from foreign first-class factories.</p> <p>Experienced Technicians and Workers</p> <p>Have an experienced tools for drilling holes in rocks production & technology team, many of them have 10-30 years of industry experience. Not only can produce stable quality drill rock tools, but also can provide customized rock tools services and OEM.</p> <p>Efficient Quality Management</p> <p>Passed ISO9001: 2015, own a good quality management system, has a sound on-site management video system to ensure that each rock drilling tool and rock breaking tools can undergo strict quality inspection before leaving the factory.</p> <p>High Product Quality</p> <p>Our rock tools are 100% compatible and interchangeable with world-renowned brands. According to the different grades of our rock excavation tools and drilling tools, the overall product performance of our rock drilling tools can reach 75%-95% of the world-class brands, and the TBM cutting tools can reach 90% of the world-class brands, and even exceed.</p> <p>Good Pre-sales and After-sales Service</p> <p>As one of the trustworthy rock drilling tools china manufacturers, we have a professional team of application experts and service team, which can choose the most suitable rock drilling tools/mining tools/tunnelling tools for you according to the equipment and working conditions before sale, and provide you with debugging, maintenance, training, and other services after sale.</p> <p>Learn More About Litian Rock Tools<br /> Litian Rock Tools Application Coverage<br /> Our rock tools business extends throughout mining, tunnel excavation and underground engineering, construction, hydropower engineering and other infrastructure construction fields.</p> <p>As a drill rod factory, we can offer kinds of related products for sale, anything you need, please contact us.</p> <p><a href="https://www.litechtools.com/uploads/image/20211203/11/top-hammer-drilling-tools.jpg" rel="nofollow"><img src="https://www.litechtools.com/uploads/image/20211203/11/top-hammer-drilling-tools.jpg" alt="top-hammer-drilling-tools.jpg" /></a><br /> <a href="https://www.litechtools.com/uploads/image/20211203/12/tbm-cutter.jpg" rel="nofollow"><img src="https://www.litechtools.com/uploads/image/20211203/12/tbm-cutter.jpg" alt="tbm-cutter.jpg" /></a><br /> <a href="https://www.litechtools.com/uploads/image/20211203/11/raise-boring-cutters.jpg" rel="nofollow"><img src="https://www.litechtools.com/uploads/image/20211203/11/raise-boring-cutters.jpg" alt="raise-boring-cutters.jpg" /></a></p> 2023-04-04T17:31:34+0900 http://pastport.jp/user/LitianHeavyIndustry/timeline/Litian%20Heavy%20Industry%20Machinery%20Co.%2C%20Ltd/event/CcOrtbCIQc3 LitianHeavyIndustry http://pastport.jp/user/LitianHeavyIndustry/timeline/Litian%20Heavy%20Industry%20Machinery%20Co.%2C%20Ltd/event/CcOrtbCIQc3#comments http://pastport.jp/user/LitianHeavyIndustry/timeline/Litian%20Heavy%20Industry%20Machinery%20Co.%2C%20Ltd/event/CcOrtbCIQc3 Random Roller Cutter(2023年02月23日) <p><a href="https://www.litechtools.com/products/random-roller-cutter.html">https://www.litechtools.com/products/random-roller-cutter.html</a></p> <p>Random Roller Cutter is a kind of TCI roller cutter without annular grooves (chipways) on the cutter surface, and its carbides are randomly distributed on the cutter body surface according to the design. This kind of roller cutter can be used not only in raise boring equipment, called raise boring cutter; but also widely used in reverse circulation drilling equipment, called RCD cutter.<br /> Random Roller Cutter Product Features<br /> 1. The back cone adopts spherical buttons, and the main cone adopts conical buttons.</p> <p>2. Randomly distributed buttons are used to achieve full coverage of the bottom crushing zone.</p> <p>3. The optional bearings include tapered roller bearings, ball bearings, and thrust roller bearings.</p> <p>4. Use high-quality metal seals.</p> <p>5. The roller cutters can be repaired and customized.</p> <p>Random Roller Cutter Application Parameters<br /> 1. Applicable rock hardness: protodyakonov scale of hardness f≤12.</p> <p>2. Recommended WOB of roller cutter: 100KN~170KN (12″), 60KN~100KN (8″).</p> <p>3. Maximum WOB (weight on bit): 196KN (12″), 120KN (8″).</p> <p>4. Recommended cutterhead rotation speed: 3-15 RPM.</p> <p>5. Maximum linear velocity: 90m/min.</p> <p>Litian Optional Cutter Model</p> <p>As one of rock drilling tools manufacturers, Litian is committed to the development and production of rock breaking tools and rock mining drilling tools to help customers in mining and infrastructure construction to increase productivity and reduce comprehensive rock breaking costs. Our products can be applied to various brands and models of tunnel boring machines, rock drilling rigs, raise boring rigs and other machinery. <a href="https://www.litechtools.com/uploads/image/20211207/15/litian-rcd-cutter.jpg" rel="nofollow"><img src="https://www.litechtools.com/uploads/image/20211207/15/litian-rcd-cutter.jpg" alt="litian-rcd-cutter.jpg" /></a></p> 2023-02-15T14:53:46+0900 http://pastport.jp/user/LitianHeavyIndustry/timeline/Litian%20Heavy%20Industry%20Machinery%20Co.%2C%20Ltd/event/7LiWP3Acy9h LitianHeavyIndustry http://pastport.jp/user/LitianHeavyIndustry/timeline/Litian%20Heavy%20Industry%20Machinery%20Co.%2C%20Ltd/event/7LiWP3Acy9h#comments http://pastport.jp/user/LitianHeavyIndustry/timeline/Litian%20Heavy%20Industry%20Machinery%20Co.%2C%20Ltd/event/7LiWP3Acy9h Raise Boring Cutters(2023年02月22日) <p><a href="https://www.litechtools.com/products/raise-boring-cutters/">https://www.litechtools.com/products/raise-boring-cutters/</a></p> <p>Raise boring cutter (RBM cutter) is a tungsten carbide insert roller cutter mounted on the reaming head of raise boring machine (RBR, raise borer), which is an excavation tool for breaking rocks. As the most important raiseboring drilling tools, the raise boring cutters are mainly used in the construction of vertical shafts, inclined shafts, surge shafts, ventilation shafts, and escape shafts, and can be widely applied in underground engineering construction fields such as mine, hydropower, transportation and so on.</p> <p>Litian focuses on developing and manufacturing raise boring roller cutters suitable for all kinds of raise boring rigs and rock formations and can provide users with comprehensive technical support and consultation, as well as various forms of services and solutions.</p> <p>Different Types Of Litian Raise Boring Roller Cutters<br /> Litian raise boring cutters are designed and manufactured for all sizes of reaming heads. These rock roller drill bit cutters are used for different types of drilling from horizontal drilling, blind drilling to vertical drilling, etc. Different types of raise boring drilling tools have different advantages. Our kerf roller cutters are designed to achieve the best performance in all rock formations by varying spacing between rows of tungsten carbide inserts. Our random cutters, also known as RCD cutters, can be randomly arranged with optimal inserts to achieve better penetration and higher toughness, based on specific rock formation information. Litian raise boring cutters are designed and manufactured using the latest technology to provide optimum performance. Click below to get more!<br /> Raise Boring Cutters Overview<br /> Raise Boring Cutters<br /> Other NamesRaise boring roller cutter, Raise borer cutter, Rock roller cutter, Rock roller bits, Raisebore roller cutter, Tungsten carbide insert bits, TCI roller cutter, RBM cutter, RCD cutter, Rolling cutter bits, Microtunneling roller cutters, Insert roller cutters<br /> MaterialMold Steel + Tungsten carbide inserts<br /> Cutter TypeKerf cutters, Rowed cutters, Random cutters (RCD cutter)<br /> Size7" ~ 17"  (178mm ~ 432mm)<br /> Button ShapeChisel inserts, Conical inserts, Spherical inserts, Ballistic inserts<br /> Rows3-ROW, 4-ROW, 5-ROW, 6-ROW, 8-ROW<br /> BearingTapered roller bearing, Ball roller bearing, Thrust roller bearing<br /> Adaptive rocksSandstone, limestone, granite, basalt<br /> UCS30Mpa ~ 200Mpa<br /> Applicable rock hardnessF6 ~ F18<br /> ApplicationRaise boring, Blind boring, Horizontal boring, Down boring; Shaft boring; Reverse circulating drilling.<br /> Ore passes, ventilation raises, connection shafts for mining, penstocks for pump storage power plants, headrace shafts, drill tunnels for cables, escape routes, sewage, etc .<br /> Applicable EquipmentRaise Boring Rig, Boxhole Boring Machine, Boxhole Backreaming Machine, Reef Boring Machine, Shaft Boring Machine, Reverse Circulation Rig, etc.<br /> Applicable BrandSandvik, Epiroc, Herrenknecht, Robbins, Palmieri, etc.<br /> OEM & ODMAcceptable<br /> High-quality Raise boring Roller Cutter Parts<br /> Buttons<br /> The insert buttons of raise boring cutters adopt high-quality tungsten carbide with good wear resistance and long service life, and the commonly tungsten carbide insert design includes chisel inserts, conical inserts, spherical inserts, which can be used with raise boring cutters to improve drilling efficiency under different geological conditions.<br /> Hub<br /> The raise boring cutter hub uses high-quality raw materials and reasonable design, and it can meet long-distance use under different geological conditions.<br /> Sealing<br /> The metal seal of our raise boring roller cutters has excellent high-temperature resistance, reliable sealing performance, and can meet long-distance use in harsh working environments.<br /> Bearing<br /> The raise boring cutter bearing has good wear resistance and deformation resistance, and good overall performance. Our optional bearings include tapered roller bearings, ball bearings, and thrust roller bearings.<br /> Litian Raiseboring Drilling Tools Features<br /> Litian raise boring roller cutters have been practically applied under a variety of different rock conditions, and the rock roller cutter body structures and the button spacing are optimized according to the different rock performance characteristics. Our raise boring cutter drilling tools can be applied to the excavation of different hardness strata (30Mpa~300Mpa), such as sandstone, limestone, granite, basalt, etc., and can meet different engineering needs.<br /> We use scientific calculation and analysis methods to accurately calculate the maximum cutting efficiency and movement direction of each cutter row so that each alloy button can produce the maximum breaking area and volume when it contacts the hole wall. Litian raises boring cutters to have strong wear resistance, stable performance, and durability, and can cooperate with raise boring rigs for efficient rock-breaking operations, thereby helping users shorten construction time, improve drilling efficiency, and reduce engineering costs.</p> <p>Litian Raise Boring Cutters FAQs</p> <p>What is the working principle of raise boring cutters?<br /> The working principle of the raise drilling cutters is that the raise drilling rig applies drilling pressure and torque to all the roller cutters on the cutter head to make the cutters penetrate the rock. Every raise boring cutter rotates around its own axis and rotates around the central axis of the cutter head, so as to continuously squeeze and roll the rock mass surface, break the rock mass and form a drilling borehole.<br /> What kind of machines can raise boring cutters be used to?<br /> Litian raise boring cutters can be used on Raise Boring Rig (RBR), Boxhole Boring Machine (BBM), Boxhole Backreaming Machine (BBR), Reef Boring Machine (RBM), Shaft Boring Machine, Reverse Circulation Rig..., with a cutter head diameter ranging from 0.3m-8m.</p> <p>As a rock drill bits factory, we will do our best to meet all the needs of customers.</p> <p>If you want to know more types of hard rock drilling tools, please visit our website.<a href="https://www.litechtools.com/uploads/image/20211207/raise-boring-roller-bits.jpg" rel="nofollow"><img src="https://www.litechtools.com/uploads/image/20211207/raise-boring-roller-bits.jpg" alt="raise-boring-roller-bits.jpg" /></a></p> 2023-02-15T14:53:17+0900 http://pastport.jp/user/LitianHeavyIndustry/timeline/Litian%20Heavy%20Industry%20Machinery%20Co.%2C%20Ltd/event/pruTpkynHAq LitianHeavyIndustry http://pastport.jp/user/LitianHeavyIndustry/timeline/Litian%20Heavy%20Industry%20Machinery%20Co.%2C%20Ltd/event/pruTpkynHAq#comments http://pastport.jp/user/LitianHeavyIndustry/timeline/Litian%20Heavy%20Industry%20Machinery%20Co.%2C%20Ltd/event/pruTpkynHAq MF Rod(2023年02月21日) <p><a href="https://www.litechtools.com/products/mf-rod/">https://www.litechtools.com/products/mf-rod/</a></p> <p>MF rod, also known as speed drill rod, has a male thread at one end and a female thread at the other end. It can directly connect to the shank adapter without the aid of a coupling sleeve, which eliminates the defect that the equal diameter thread connection is prone to vibration. The quick-change properties of male/female rods improve the overall drilling efficiency.</p> <p>As an MF Rod manufacturer, we have two MF rod factories in China. Our MF drill rods are made of high-quality alloy steel and advanced thread manufacturing technology, and have excellent performance in wear resistance and flexibility. We offer speed drill rods with various threads, such as R23 MF drill rod, R32 MF drill rod, R38 MF rod, T35 MF rod, T38 MF drill rod, T45 MF rod, MF rod T51, GT60 MF drill rod, SR35 speed rod, etc.</p> <p>Now the price of rock drilling tools china is affordable, if you have needs to buy rock drilling tools china, please leave us a message.<a href="https://www.litechtools.com/uploads/image/20211207/15/rod-drill-bit.jpg" rel="nofollow"><img src="https://www.litechtools.com/uploads/image/20211207/15/rod-drill-bit.jpg" alt="rod-drill-bit.jpg" /></a></p> 2023-02-15T14:52:47+0900 http://pastport.jp/user/LitianHeavyIndustry/timeline/Litian%20Heavy%20Industry%20Machinery%20Co.%2C%20Ltd/event/iK6uMRrgvvP LitianHeavyIndustry http://pastport.jp/user/LitianHeavyIndustry/timeline/Litian%20Heavy%20Industry%20Machinery%20Co.%2C%20Ltd/event/iK6uMRrgvvP#comments http://pastport.jp/user/LitianHeavyIndustry/timeline/Litian%20Heavy%20Industry%20Machinery%20Co.%2C%20Ltd/event/iK6uMRrgvvP Reaming Bit(2023年02月20日) <p><a href="https://www.litechtools.com/products/reaming-bit/">https://www.litechtools.com/products/reaming-bit/</a></p> <p>Reaming bit, also known as pilot reamer bit, is a hole opener that drills a pilot hole to a certain depth and then reams the hole to a larger diameter. It is mainly used for center hole reaming in long hole drilling. Threaded reaming bits are divided into integral reaming bit (dome type, pilot type) and split-type reaming bit. Our reaming button bits are mainly dome reaming bits and pilot reaming bits, such as R25 reaming bit, R28 reaming bit, reaming bit R32, R35 reaming bit, R38 reaming bit, T38 reaming bit, T45 reaming bit, T51 reaming bit, ST58 reaming bit, ST68 reaming bit, SR35 reaming bit...<br /> Specification Of Reaming Bit<br /> R32<br /> AppearanceDiameterButtonsFlushing HoleWeightModel No.</p> <p>Dome Reaming Bit<br /> [mm]<br /> [in]Gauge<br /> [No.] × [mm]Front<br /> [No.] × [mm]Side<br /> [No.]Front<br /> [No.]<br /> [kg]<br /> 763"9 × 131 × 12-22R32-7610KKP<br /> 893 1/2"8 × 12.77 × 12.7243R32-8915KKP<br /> 1024"8 × 137 × 13-53.7R32-10215KKP<br /> 1024"8 × 139 × 13243.8R32-10217KKP<br /> 1024"14 × 123 × 10-23.6R32-10217KKP1<br /> Pilot Reaming Bit763"12 × 124 × 10-22.5R32-7616DXP<br /> 893 1/2"12 × 124 × 10-23.4R32-8916DXP<br /> 1024"12 × 133 × 10-43.4R32-10215DXP<br /> 1024"14 × 123 × 10-23.8R32-10217DXP<br /> 1024"8 × 147 × 12-4.8R32-10215DXP1</p> <p>SR35<br /> AppearanceDiameterButtonsFlushing HoleWeightModel No.<br /> [mm]<br /> [in]Gauge<br /> [No.] × [mm]Front<br /> [No.] × [mm]Side<br /> [No.]Front<br /> [No.]<br /> [kg]</p> <p>Dome Reaming Bit893 1/2"8 × 137 × 13123SR35-8915KKP<br /> 1024"8 × 137 × 13223.7SR35-10215KKP</p> <p>T38<br /> AppearanceDiameterButtonsFlushing HoleWeightModel No.<br /> [mm]<br /> [in]Gauge<br /> [No.] × [mm]Front<br /> [No.] × [mm]Side<br /> [No.]Front<br /> [No.]<br /> [kg]</p> <p>Dome Reaming Bit1024"8 × 139 × 13223.8T38-10217KKP<br /> 1254 59/64"9 × 1310 × 13227.5T38-12519KKP<br /> 1275"9 × 1310 × 13228T38-12719KKP<br /> 1526"9 × 1611 × 162212.3T38-15220KKP<br /> Pilot Reaming Bit893 1/2"12 × 124 × 10-23.4T38-8916DXP<br /> 1024"8 × 147 × 11-4.3T38-10215DXP<br /> 1154 1/2"8 × 147 × 12-5.8T38-11515DXP<br /> 1275"8 × 147 × 12-7.7T38-12715DXP<br /> 1275"8 × 147 × 12-6.5T38-12715DXP1<br /> 1275"10 × 147 × 12-6.6T38-12717DXP<br /> 1526"8 × 167 × 14-13.3T38-15215DXP<br /> 1787"16 × 163 × 14-19.7T38-17819DXP</p> <p>T45<br /> AppearanceDiameterButtonsFlushing HoleWeightModel No.<br /> [mm]<br /> [in]Gauge<br /> [No.] × [mm]Front<br /> [No.] × [mm]Side<br /> [No.]Front<br /> [No.]<br /> [kg]</p> <p>Dome Reaming Bit1526"9 × 1611 × 162212.3T45-15220KKP<br /> Pilot Reaming Bit1024"8 × 129 × 10-4.2T45-10217DXP<br /> 1526"8 × 1610 × 14-12.8T45-15218DXP<br /> 1526"8 × 147 × 14-12.8T45-15215DXP</p> <p>T51<br /> AppearanceDiameterButtonsFlushing HoleWeightModel No.<br /> [mm]<br /> [in]Gauge<br /> [No.] × [mm]Front<br /> [No.] × [mm]Side<br /> [No.]Front<br /> [No.]<br /> [kg]</p> <p>Dome Reaming Bit1526"9 × 1611 × 162212.3T51-15220KKP<br /> Pilot Reaming Bit1275"12 × 147 × 12-5.9T51-12719DXP</p> <p>ST58<br /> AppearanceDiameterButtonsFlushing HoleWeightModel No.<br /> [mm]<br /> [in]Gauge<br /> [No.] × [mm]Front<br /> [No.] × [mm]Side<br /> [No.]Front<br /> [No.]<br /> [kg]</p> <p>Dome Reaming Bit1526"9 × 1611 × 162212.3ST58-15220KKP<br /> Pilot Reaming Bit1897 7/16"15 × 163 × 14-20.2ST58-18918DXP</p> <p>ST68<br /> AppearanceDiameterButtonsFlushing HoleWeightModel No.<br /> [mm]<br /> [in]Gauge<br /> [No.] × [mm]Front<br /> [No.] × [mm]Side<br /> [No.]Front<br /> [No.]<br /> [kg]</p> <p>Dome Reaming Bit1526"9 × 1611 × 162212.3ST68-15220KKP<br /> Pilot Reaming Bit1526"9 × 163 × 16-14.2ST68-15212DXP<br /> 25410"8 × 167 × 14-51.4ST68-25415DXP</p> <p>As a drill rod factory, we can offer sorts of mining drill rods for sale, if you are interested, please leave us a message. <a href="https://www.litechtools.com/uploads/image/20211207/15/bit-mining.jpg" rel="nofollow"><img src="https://www.litechtools.com/uploads/image/20211207/15/bit-mining.jpg" alt="bit-mining.jpg" /></a></p> 2023-02-15T14:52:16+0900 http://pastport.jp/user/LitianHeavyIndustry/timeline/Litian%20Heavy%20Industry%20Machinery%20Co.%2C%20Ltd/event/WUXRj4drQrZ LitianHeavyIndustry http://pastport.jp/user/LitianHeavyIndustry/timeline/Litian%20Heavy%20Industry%20Machinery%20Co.%2C%20Ltd/event/WUXRj4drQrZ#comments http://pastport.jp/user/LitianHeavyIndustry/timeline/Litian%20Heavy%20Industry%20Machinery%20Co.%2C%20Ltd/event/WUXRj4drQrZ Rock Drilling Tools In Construction Drill And Blast(2023年02月19日) <p><a href="https://www.litechtools.com/construction-drill-and-blast-hole-bits.html">https://www.litechtools.com/construction-drill-and-blast-hole-bits.html</a></p> <p>Construction Drill and Blast</p> <p>Top hammer rock drilling tools for Construction Drill and Blast<br /> With the attention and investment of infrastructure industry at home and abroad, in many construction industries with high construction difficulty and high risk, the mechanized drilling and blasting construction of rock drilling rigs has gradually replaced the pneumatic drilling and blasting construction with more personnel, high labor intensity, large safety risk, and low efficiency.</p> <p>Litian provides a range of top hammer rock drilling tools (threaded drill bits, drill rods, shank rods, couplings, blast hole bits) for the construction drilling and blasting industry. Our rock drilling tools have been widely used in mining, quarries, tunnels, railways, roads, foundations, pipelines, and various civil engineering projects.</p> <p>Our rock drilling tools are made of the toughest alloy structural steel and cemented carbide to provide maximum drilling performance. Our drill bits, drill rods, shank adapters, and coupling sleeves are well matched, which can minimize the loss in the energy transmission process, while ensuring the verticality of the drilling hole, so that the impact energy can be concentrated on the rock, to achieve accurate drilling purposes, reduce the cost of drilling per meter.</p> <p>Whether in terms of hole drilling quality, service life of rock drilling tools, or reducing total drilling & blasting costs, we are an ideal choice for you!</p> <p>As one of rock drilling tools manufacturers, we can offer kinds of rock drilling tools for sale, if you are interested, please leave us a message.<br /> <a href="https://www.litechtools.com/uploads/image/20211215/litian-tools-for-drilling-holes-in-rocks.jpg" rel="nofollow"><img src="https://www.litechtools.com/uploads/image/20211215/litian-tools-for-drilling-holes-in-rocks.jpg" alt="litian-tools-for-drilling-holes-in-rocks.jpg" /></a></p> 2023-02-15T14:51:42+0900 http://pastport.jp/user/LitianHeavyIndustry/timeline/Litian%20Heavy%20Industry%20Machinery%20Co.%2C%20Ltd/event/xpRt4RDDQKS LitianHeavyIndustry http://pastport.jp/user/LitianHeavyIndustry/timeline/Litian%20Heavy%20Industry%20Machinery%20Co.%2C%20Ltd/event/xpRt4RDDQKS#comments http://pastport.jp/user/LitianHeavyIndustry/timeline/Litian%20Heavy%20Industry%20Machinery%20Co.%2C%20Ltd/event/xpRt4RDDQKS Rock Tools In Tunnelling & Underground(2023年02月17日) <p><a href="https://www.litechtools.com/tunneling-underground-boring-tool.html">https://www.litechtools.com/tunneling-underground-boring-tool.html</a></p> <p>Tunneling & Underground Project</p> <p>TBM cutters, Top hammer drilling tools and raise boring cutters for Tunnelling & Underground Engineering</p> <p>Every tunneling and underground engineering construction requires the cooperation of multiple types of equipment. As a rock drill bits factory, we can provide safe, high-efficiency, and high-precision rock tools consumables for rock drilling and breaking. Litian TBM cutters can be adapted to all kinds of tunnel boring machines to complete tunnel excavation work under various rock conditions. Litian top hammer rock drilling tools can be adapted to all kinds of underground rock drilling rigs to complete precise rock drilling operations. Litian raise boring cutters can be adapted to all kinds of raise borers to complete the construction of various pilot shafts and ventilation shafts.</p> <p>In different tunneling and underground engineering, the physical properties of rocks (such as density, humidity, magnetism, swelling, dissolution) and mechanical properties of rocks (such as strength, hardness, abrasion, brittleness, toughness, robustness) are differ in thousands of ways. In the development of TBM cutters, Top hammer drilling tools and raise boring cutters, we not only carry out development in raw materials, heat treatment, and manufacturing technology, but also produce rock drilling tools and excavation tools in accordance with the different characteristics of the rocks.</p> <p>In order to meet the standards of safety, speed, accuracy during drilling and excavation, the parameters of our underground boring tools and drilling tools can be fully matched with the host machine to achieve the best working conditions and complete the work tasks more efficiently.<br /> After years of accumulation and development, Litian rock tools have been widely used in various tunnel construction projects and underground engineering, such as metro, railways, road tunnels, harbour tunnels, water diversion projects, sewage treatment projects, outfall projects, underground pipeline projects, etc. We have participated in many large-scale projects at home and abroad, such as Hanjiang to Weihe River Project, ABH Water Transmission Tunnel Project, Peru San Gaban hydropower station tunnel project, and so on.</p> <p>Common threaded drilling tools for tunnel construction project:</p> <p>ProductDescriptionModel No.<br /> R32 Threaded Rock Driling Tools<br /> Button bitR32 Thread, 48mm, Spherical buttons, 6 Gauge buttonsR32-489ZC<br /> Button bitR32 Thread, 51mm, Spherical buttons, 6 Gauge buttonsR32-519ZC<br /> Button bitR32 Thread, 57mm, Spherical buttons, 6 Gauge buttonsR32-579ZC<br /> Button bitR32 Thread, 64mm, Spherical buttons, 8 Gauge buttonsR32-6412ZC<br /> MF Drill RodT38-R32 Thread, Length 4305mm, Hexagonal rodMF-T38/R32-H35-4305<br /> MF Drill RodR3-R32 Thread, Length 4915mm, Hexagonal rodMF-R38/R32-H35-4915<br /> T38 Drill RodT38-R32 Thread, Length 5525mm, Hexagonal rodT38/R32-H35-5525<br /> Drill RodR38-R32 Thread, Length 6400mm, Hexagonal rodR38/R32-H35-6400<br /> Coupling SleeveR38-R38 Thread, Length 190mm, Semi-bridge typeLT38/R32-D56-190<br /> Coupling SleeveT38-T38 Thread, Length 190mm, Full-bridge typeLT38-D56-190R<br /> <a href="https://www.litechtools.com/uploads/image/20211207/raise-boring-roller-bits.jpg" rel="nofollow"><img src="https://www.litechtools.com/uploads/image/20211207/raise-boring-roller-bits.jpg" alt="raise-boring-roller-bits.jpg" /></a></p> 2023-02-15T14:51:11+0900 http://pastport.jp/user/LitianHeavyIndustry/timeline/Litian%20Heavy%20Industry%20Machinery%20Co.%2C%20Ltd/event/cb3ldVLkyfY LitianHeavyIndustry http://pastport.jp/user/LitianHeavyIndustry/timeline/Litian%20Heavy%20Industry%20Machinery%20Co.%2C%20Ltd/event/cb3ldVLkyfY#comments http://pastport.jp/user/LitianHeavyIndustry/timeline/Litian%20Heavy%20Industry%20Machinery%20Co.%2C%20Ltd/event/cb3ldVLkyfY Rock Drilling Tools In Quarrying & Aggregate(2023年02月16日) <p><a href="https://www.litechtools.com/stone-drilling-tools-in-quarrying-and-aggregate.html">https://www.litechtools.com/stone-drilling-tools-in-quarrying-and-aggregate.html</a></p> <p>Quarrying & Aggregate</p> <p>Top hammer rock drilling tools for Quarrying and Aggregate industry</p> <p>In quarry and aggregate industries, the application of top-hammer rock drilling rigs can improve operational efficiency, safety and stability, as well as adapt to the increasingly stringent emission reduction and environmental protection standards.<br /> Litian stone rock drilling tools can be adapted to all kinds of top hammer drilling rigs used in quarrying and aggregate industries. For large-scale field blasting, consistent and precise drilling is required to produce crushed stones of the expected size. The basic drilling parameters such as the hole drilling location, straightness and depth are very important and need to be performed by high-quality, high-precision top hammer rock drilling tools. We have a complete set of mature technology in raw material processing, smelting, mechanical processing, heat treatment, etc., which greatly improves the fatigue strength impact force and accuracy of the stone drilling tools, thereby increasing productivity and enabling more efficient quarrying and aggregate collection.</p> <p>Whether in limestone quarry, sandstone quarry, quartz quarry, gravel quarry, marble quarry, granite quarry, or sand quarry, our rock drilling quarry tools are available there. Our quarry rock drill bits, drill rods and shank adapters, couplings are worth having!<br /> Commonly used Stone Drilling Tools For Quarrying:<br /> ProductDescriptionModel No.<br /> T38 Threaded Rock Driling Tools<br /> Button BitT38 Thread, 76mm, Spherical buttons, 8 Gauge buttonsT38-7612ZC<br /> Button BitT38 Thread, 89mm, Spherical buttons, 8 Gauge buttonsT38-8913ZC<br /> Drill RodT38-T38 Thread, Length 3050mm, Round rodT38-D39-3050<br /> T45 Threaded Rock Driling Tools<br /> Retrac Button BitT45 Thread, 95mm, Spherical buttons, 8 Gauge buttons,T45-9514YF<br /> Retrac Button BitT45 Thread, 105mm, Spherical buttons, 8 Gauge buttons,T45-10514YF<br /> Drill RodT45 Thread, Length 3660mm, Round rodT45-D46-3660<br /> Coupling SleeveT45-T45 Thread, Length 210mm, Semi-bridge typeLT45-D63-210<br /> Coupling SleeveT45-T45 Thread, Length 210mm, Full-bridge typeLT45-D63-210R<br /> T51 Threaded Rock Driling Tools<br /> Retrac Button BitT51 Thread, 102mm, Spherical buttons, 8 Gauge buttonsT51-10215YF<br /> Button BitT51 Thread, 115mm, Spherical buttons, 8 Gauge buttonsT51-11514ZC<br /> MF Drill RodT51 Thread, Length 6705mm, Round rodMF-T51-D52-6705<br /> GT60 Threaded Rock Driling Tools<br /> Retrac Button BitGT60 Thread, 115mm, Spherical buttons, Drop centerGT60-11515YFA<br /> MF Drill RodGT60 Thread, Length 4265mm, Round rodMF-GT60-D60-4265<br /> MF Drill RodGT60 Thread, Length 6095mm, Round rodMF-GT60-D60-6095</p> <p>As a drill rod factory, we can offer sorts of drill rod for sale, anything you need, please leave us a message<a href="https://www.litechtools.com/uploads/image/20220322/quarry-stone-drilling-tools.jpg" rel="nofollow"><img src="https://www.litechtools.com/uploads/image/20220322/quarry-stone-drilling-tools.jpg" alt="quarry-stone-drilling-tools.jpg" /></a></p> 2023-02-15T14:50:35+0900 http://pastport.jp/user/LitianHeavyIndustry/timeline/Litian%20Heavy%20Industry%20Machinery%20Co.%2C%20Ltd/event/1B4fotrjEjC LitianHeavyIndustry http://pastport.jp/user/LitianHeavyIndustry/timeline/Litian%20Heavy%20Industry%20Machinery%20Co.%2C%20Ltd/event/1B4fotrjEjC#comments http://pastport.jp/user/LitianHeavyIndustry/timeline/Litian%20Heavy%20Industry%20Machinery%20Co.%2C%20Ltd/event/1B4fotrjEjC Top Hammer Drilling Tools(2023年02月15日) <p><a href="https://www.litechtools.com/products/top-hammer-drilling-tools/">https://www.litechtools.com/products/top-hammer-drilling-tools/</a></p> <p>Top rock drilling tools is a kind of rock tool consumables widely used in top hammer drilling applications, such as open-pit mining, quarrying, underground mining, rock bolting, tunneling, and production drilling. The top hammer rock drilling tools include four parts: Drill bit, Drill rod, Shank Adapter, and Coupling Sleeve.</p> <p>Top Hammer Rock Drilling Tools From Litian<br /> Litian is a professional manufacturer of high-quality top hammer rock drilling tools with optimal drilling hole quality, high stability, and long service life. The top hammer tools are designed and produced to transmit high-frequency impact energy into the rock and minimize energy loss to improve the rock breaking rate, penetration rate, and productivity.<br /> Top Hammer Drilling Tools Product Specification<br /> Top Hammer Rock Drilling Tool<br /> Button BitMaterialTungsten Carbide, Structural Alloy Steel<br /> ThreadR25, R28, R32, R35, R38, T38, T45, T51, GT60, ST58, ST68, SR28, SR35, TR35, etc.<br /> Bit TypeStandard button bit, Retrac button bit, Reaming bit, Tapered button bit<br /> Skirt DesignStandard type, Retrac type, Straightrac type<br /> Face DesignFlat face, Drop center face, Uni-face, Reaming type, Cross type face<br /> Button ShapeSpherical buttons, Ballistic buttons, Conical buttons, Composite buttons<br /> Head Diameter28mm~152mm<br /> Drill RodMaterialStructural Alloy Steel<br /> ThreadR22, R25, R28, R32, R35, R38, T38, T45, T51, GT60, ST58, ST68, SR28, SR35, TR35, etc.<br /> Rod TypeExtension rod, Drifter rod, MF rod, MF Drifter rod, Guide tube, Drill Tube<br /> Body TypeRound rod, Hexagonal rod<br /> Diameter20mm~87mm<br /> Length260mm~6400mm</p> <p>Shank AdapterMaterialStructural Alloy Steel<br /> Applicable rock drillAtlas Copco, Sandvik, Tamrock, Furukawa, Ingersoll-Rand, Montabert, Boart LongYear, etc.<br /> ThreadR25, R28, R32, R35, R38, T38, T45, T51, GT60, ST58, ST68, SR28, SR35, TR35, etc.<br /> Shank TypeMale threaded shank adapter, Female threaded shank adapter<br /> Diameter32mm~90mm<br /> Length370mm~835mm</p> <p>Coupling SleeveMaterialStructural Alloy Steel<br /> ThreadR32, R35, R38, T38, T45, T51, etc.<br /> Coupling TypeSemi bridge Couplings, Full bridge Couplings, Crossover Couplings<br /> Diameter44~72mm<br /> Length150mm~255mm</p> <p>Litian provides standard and heavy-duty series top hammer drilling rig tools, suitable for drilling in soft rock, medium-hard rock, hard rock, and various complex mixed rock working conditions. The drill bit, drill rod, coupling sleeve, and shank adapter are connected by their threads to form a rock drill string. The commonly used thread forms include rope thread (R25, R28, R32, R35, R38, SR28, SR35) and trapezoidal thread (T38, T45, T51, ST58, ST68, GT60).</p> <p>Why Choose Litian Top Hammer Rock Drill Tools?</p> <p>In the top hammer drilling tool manufacturing, we have world-class production technology, advanced production equipment, and experienced production technical staff. We have been working closely with our customers to conduct extensive on-site tests on various types of rocks and working conditions. Based on the feedback, we continue to improve and develop in various areas such as raw materials, heat treatment, design and manufacturing processes.</p> <p>In terms of product consultation and rock tool services, we can select the most suitable rock drill tools and drilling construction schemes according to the user's construction conditions, rock type, mineral conditions and the drilling equipment, so as to help users improve drilling efficiency, reduce drilling costs, and achieve better comprehensive benefits and higher labor productivity.</p> <p>In terms of industry reputation, our top hammer drill tools have a good industry reputation in mining, tunneling, quarrying, roads or construction due to the excellent wear resistance, roughening resistance and stability. Compared with many world-class brands of drilling tools, our rock drill tools are not inferior. In some field comparison tests, the use efficiency of our many products even exceeds that of world-class brands, and has been highly recognized by customers.</p> <p>Litian Top Hammer Rock Drilling Tools FAQs</p> <p>Which drilling rigs can our drilling rig tools be used for?<br /> Our drilling rig tools and mining machine parts are suitable for top hammer long hole drill rigs, rock support drill rigs, cable-bolting rigs, underground drill rigs, tunneling jumbos, narrow vein drill rigs, development drill rigs, surface top hammer drill rigs, dimensional stone drill rigs, and all other drilling rigs that use the way of top hammer drilling.</p> <p>How do the top hammer drilling tools perform rock drilling?<br /> Litian top hammer rock drilling tool needs to be installed with the hydraulic rock drill on the rock drilling equipment for rock drilling. The rock drill works according to the principle of impact crushing. When the rock drill is working, the piston makes a high-frequency reciprocating motion, continuously hitting the shank adapter to produce impact energy, which is then transmitted to the drill rod, drill bit, and rock to achieve rock breaking.</p> <p>What are the reasons that affect the service life of top hammer rock drilling tools?<br /> ①Raw material and technology</p> <p>High-quality raw materials and advanced processing technology can guarantee the overall drilling quality of the rock drill tools from the source and prolong its service life. Choose qualified rock drilling tools and rock drill accessories from large standardized manufacturers.</p> <p>② Whether the rock drill tools assembly are concentric</p> <p>When drilling rock, the shank adapter, the drill rod, and the couplings should be in concentricity. The misalignment of the three will cause bending and deformation of the top hammer drill tools, resulting in stress, resulting in the joint can not cooperate effectively, and causing looseness.</p> <p>③ Improper use of rock drill tools</p> <p>When connecting the, it is easy to damage the rock drilling tools china if there are mud and sand on the thread, or if there is no lubricating oil at the threaded connection. The combination using of the used drilling rig tool and the new drilling rig tool will shorten the service life of the drilling tool. In addition, the empty beating of rock drill tools should be avoided as far as possible.</p> <p>④ Propulsion pressure and impact pressure</p> <p>The propulsion pressure and impact pressure should be set within the rated pressure range.</p> <p>If the propulsion pressure is too low, it will reduce the drilling penetration efficiency, cause the drilling tool assembly to loosen, and the transmitted energy will be lost, which will cause great stress and cause the instantaneous contact and separation of the contact and joint end faces. If the pressure is too high, the rotation speed of the drill bit is low, there is a danger of sticking, and the bending stress of the drill rod increases.</p> <p>Improper adjustment of the impact pressure will directly affect the rotation speed and drilling efficiency, and will also affect the life of the drilling tool.</p> <p>⑤ Rotation speed and rotation pressure.</p> <p>The rotation speed should match the drill bit diameter and the impact frequency of the top hammer rods, top hammer bits. The cemented carbide of the drill bit has to be rotated at an appropriate angle after each impact, so that new rocks are broken each time.</p> <p>The normal rotary pressure can provide proper anti-sticking protection for the drill rod. The increment of rotary pressure is the key factor to maintain the tightness of the rock drill tools. if the tightness is not enough, it often causes heating of the joint, peeling off of the thread surface, early wear and even fracture of the thread.</p> <p>As one of rock drilling tools manufacturers, we can offer kinds of related products for sale, if you have needs, please contact us.<a href="https://www.litechtools.com/uploads/image/20211130/litian_rock_breaking_tool.jpg" rel="nofollow"><img src="https://www.litechtools.com/uploads/image/20211130/litian_rock_breaking_tool.jpg" alt="litian_rock_breaking_tool.jpg" /></a></p> 2023-02-15T14:50:02+0900 http://pastport.jp/user/LitianHeavyIndustry/timeline/Litian%20Heavy%20Industry%20Machinery%20Co.%2C%20Ltd/event/lgfYGLeyjTT LitianHeavyIndustry http://pastport.jp/user/LitianHeavyIndustry/timeline/Litian%20Heavy%20Industry%20Machinery%20Co.%2C%20Ltd/event/lgfYGLeyjTT#comments http://pastport.jp/user/LitianHeavyIndustry/timeline/Litian%20Heavy%20Industry%20Machinery%20Co.%2C%20Ltd/event/lgfYGLeyjTT Threaded Button Bit(2022年) <p><a href="https://www.litechtools.com/products/threaded-button-bit/">https://www.litechtools.com/products/threaded-button-bit/</a></p> <p>In top hammer threaded drilling tools, standard threaded button bit is the most widely used drill bit, which can be applied to all rock conditions. Our standard button bits are R25 button bit, R28 button bit, R32 button bit, R35 drill bit button, R38 button bit, t38 drill bit, T45 button bit, T51 button bit, GT60 button bit, ST58 button bit, ST68 button bit...</p> <p>Rock Drill Button Bits Price<br /> Due to the top quality and good service over the past more than 10 years, our threaded drill china button bit have entered many countries in the world. Litian, a professional rock drill bits factory, offers various rock button bit types for sale at a very competitive button bit price. Please feel free to contact us to get more about thread button bits.</p> <p>Litian Heavy Industry Machinery Co., Ltd (Litian Rock Tools) is a drill rod factory. we provide top hammer drill tool, TBM cutters, quarry rock drill bits, mining rock drill bits, etc.<br /> <a href="https://www.litechtools.com/uploads/image/20211207/14/bit-mining_1638860294.jpg" rel="nofollow"><img src="https://www.litechtools.com/uploads/image/20211207/14/bit-mining_1638860294.jpg" alt="bit-mining_1638860294.jpg" /></a></p> 2022-08-25T11:09:31+0900 http://pastport.jp/user/LitianHeavyIndustry/timeline/Litian%20Heavy%20Industry%20Machinery%20Co.%2C%20Ltd/event/SZ2eW8TB6h3 LitianHeavyIndustry http://pastport.jp/user/LitianHeavyIndustry/timeline/Litian%20Heavy%20Industry%20Machinery%20Co.%2C%20Ltd/event/SZ2eW8TB6h3#comments http://pastport.jp/user/LitianHeavyIndustry/timeline/Litian%20Heavy%20Industry%20Machinery%20Co.%2C%20Ltd/event/SZ2eW8TB6h3 TBM Disc Cutter(2022年) <p><a href="https://www.litechtools.com/products/tbm-disc-cutter/">https://www.litechtools.com/products/tbm-disc-cutter/</a></p> <p>TBM disc cutter is a disc-shaped roller cutter mounted on the cutterhead of tunnel boring machine, which is an excavation tool for breaking hard rocks. The disc cutters can be mounted on the cutter heads of large trenchless construction equipment such as shield machines, TBMs, pipe jacking machines, shaft boring extension machines, and are widely used in subway tunnels, railway tunnels, diversion tunnels, urban underground pipe network construction, mining and other industries.</p> <p>Litian has been conducting research on the materials, heat treatment process and manufacturing process of the tbm cutter disc components, combined with on-site testing to make improvements. As a result, the TBM disc cutters produced by Litian heavy industry has been in a leading position in the industry in terms of wear resistance, high temperature oxidation resistance, toughness. Litian TBM roller cutter can adapt to the needs of multiple types of engineering, and can meet the requirements of long-distance excavation under the compound strata of highly weathered rock, moderately weathered rock, slightly weathered rock, and has good stability and reliability.</p> <p>TBM Disc Cutter Features</p> <p>Our advanced CNC machine tools can ensure the consistency of the size of the cutter components. Combined with strict and standardized assembly process to ensure the torque of the hob. Adjust the torque in an appropriate range, so that it can well meet the requirements of the surrounding rock geology for the starting torque of the disc cutter, which is helpful to avoid partial wear of the disc cutters in different strata. We have a unique heat treatment process, which can meet the unity of wear resistance and toughness, and improve the service life of the hob.</p> <p>Sealing system: The sealing system of our disc cutter adopts the world famous brand metal sealing system. During the assembly of the disc cutter, the distortion of the rubber ring may lead to air leakage, and this hidden danger is difficult to detect. We use special technology to assemble the disc cutter to correct the distortion of the rubber ring, eliminate the hidden danger of metal seal air leakage, and ensure the sealing reliability of the disc cutter.</p> <p>Bearing system: Our disc cutter bearings are heavy-duty tapered roller bearings, which can bear the combined radial and axial load strength at the same time.</p> <p>FAQs of TBM Disc Cutter<br /> <br /> What is the working principle of TBM disc cutter?<br /> TBM disc cutter is pressed on the rock surface to be broken by the hydraulic system of the machine. In the process of working, the disc cutter rotates around its own axis, and at the same time it revolves around the central axis of the cutter head as the cutter head rotates. Under the combined action of the rotating torque of the cutter head and the vertical thrust of the propulsion cylinder, the disc cutters distributed on the cutter head cut out a group of concentric circles on the tunnel face. When the compressive strength of the rock is lower than the thrust of the cutter head, the rock will be directly broken by the cutter blade, thus forming multiple concentric grooves. With the advance of the cutter head, the groove depth gradually deepens, and the blade penetrates into the rock, forming crushing zones and radial cracks. Under further pressure, when the hob spacing meets certain conditions, the surface crack of the adjacent rock mass expands gradually, and finally the rock between the adjacent concentric grooves collapses, and the rock breaking process of the disc cutters is completed.</p> <p>Litian Heavy Industry Machinery Co., Ltd (Litian Rock Tools) is a crock drill bits factory. Our products and services are divided into three categories: top hammer tools, TBM cutters, Raise boring drilling tools.<br /> <a href="https://www.litechtools.com/uploads/image/20211214/16/center-disc-cutter.jpg" rel="nofollow"><img src="https://www.litechtools.com/uploads/image/20211214/16/center-disc-cutter.jpg" alt="center-disc-cutter.jpg" /></a></p> 2022-08-25T11:07:09+0900 http://pastport.jp/user/LitianHeavyIndustry/timeline/Litian%20Heavy%20Industry%20Machinery%20Co.%2C%20Ltd/event/8cqBCJ7BA5D LitianHeavyIndustry http://pastport.jp/user/LitianHeavyIndustry/timeline/Litian%20Heavy%20Industry%20Machinery%20Co.%2C%20Ltd/event/8cqBCJ7BA5D#comments http://pastport.jp/user/LitianHeavyIndustry/timeline/Litian%20Heavy%20Industry%20Machinery%20Co.%2C%20Ltd/event/8cqBCJ7BA5D TBM Cutter(2022年) <p><a href="https://www.litechtools.com/products/tbm-cutter/">https://www.litechtools.com/products/tbm-cutter/</a></p> <p>Tunnel boring machine cutter referred to as "TBM Cutters", are excavation tools installed on the cutter heads of tunnel boring machines and shield machines, which include TBM disc cutters (single disc cutter, double disc cutter, twin disc cutter) and soft ground cutters (eg. scrapers, cutting knives, buckets, rippers and other cutting tools). This type of disc cutters and soft rock cutters can also be used on pipe jacking machines and other similar equipment.</p> <p>Litian has been focusing on the development of TBM cutters and solutions suitable for various rock conditions, and we have made remarkable achievements in helping users improve tunneling efficiency and reduce overall costs. Litian has now developed into the largest supplier of TBM disc cutters in China.</p> <p>TBM Cutter Head Design</p> <p>A closer look at the Litian disc cutter and soft ground cutter on TBM cutter head design for tunnel boring machines.<br /> Litian: Your TBM Excavation Expert</p> <p>Litian can provide TBM cutters and shield cutters suitable for various tunnel excavations and underground works. We can provide optimal configurations of TBM cutters according to different geological characteristics, allowing users to achieve a better balance between cost and efficiency. As a professional rock drill bits factory, we have a complete technical team of TBM boring machine cutter developing, design, manufacturing, assembly, debugging, maintenance and renovation, and be able to provide equipment selection consulting, independent design, development, manufacturing and professional after-sales service. Our testing and manufacturing level for TBM cutting tools has been among the world's advanced ranks.</p> <p>Product Superiority</p> <p>Litian is committed to reducing customer procurement and operating costs, and helping customers improve tunnel boring machine tunneling efficiency. Litian tunnel boring machine cutter is cost-effective, which can reduce the number of cutter changes and increase the effective tunneling time under the same working conditions. The cutter price is about 30% lower than that of foreign equivalent products, and the life is similar to that of foreign first-class manufacturers, and even exceeds.</p> <p>Litian attaches great importance to the combination of R&D and field testing, and continuously optimizes the TBM cutter design to improve its efficiency in cutting rocks. We have successively obtained 16 national patents.</p> <p>Litian has a professional team of application experts, which can design and adjust the specification parameters of cutting tools as well as TBM spare parts according to different machines and different rock working conditions, so as to best adapt to the customer's on-site construction requirements, and to select the most suitable cutters for the customer's work conditional.</p> <p>Litian has an experienced after-sales team that can provide cutter assembly, debugging, testing, replacement, maintenance, training and other services, as well as a full range of accessory TBM spare parts, and on-site cutter maintenance workshop.</p> <p>Litian has the ability and experience to provide customers with a full range of services in the way of excavation quantity contracting. While helping users to significantly reduce the comprehensive tunneling cost, it also significantly improves the tunneling efficiency and escorts users for TBM tunneling.</p> <p>Strive To Be Your First Choice</p> <p>Litian has successively provided TBM cutters and services for various TBM equipment at home and abroad, such as CRCHI and CSSC from China, Herrenknecht and Wirth from Germany, Robbins from the United States, Lovat from Canada, Kawasaki and Hitachi from Japan, etc. Over the years, Litian has accumulated rich experience in design, manufacturing, application, maintenance, and service.</p> <p>Litian TBM cutters are being widely recognized by more and more users, and have become the first choice for many customers to deal with hard rock and complex rock excavation.</p> <p>FAQs of Litian TBM cutter<br /> <br /> What kind of machines can TBM cutters be used to?<br /> Litian TBM cutters can be used on Microtunnelling Machine (MTBM), Earth Pressure Balance Shields (EPB Shield), Mixshield, Single Shield TBM, Double Shield TBM, Gripper TBM, Multi-mode TBM, Pipe Jacking Machine, Shaft Boring Extension Machine (SBE), Shaft Boring Machine (SBM)..., with a cutter head diameter ranging from 0.8m-15m.</p> <p>There are many rock drilling tools manufacturers, but we are one of the best choices for you. If you want to buy hard rock drilling tools, contact us.<br /> <a href="https://www.litechtools.com/uploads/image/20211216/15/soft-ground-cutters.jpg" rel="nofollow"><img src="https://www.litechtools.com/uploads/image/20211216/15/soft-ground-cutters.jpg" alt="soft-ground-cutters.jpg" /></a></p> 2022-08-25T11:06:36+0900 http://pastport.jp/user/LitianHeavyIndustry/timeline/Litian%20Heavy%20Industry%20Machinery%20Co.%2C%20Ltd/event/NeS3cZaQJc4 LitianHeavyIndustry http://pastport.jp/user/LitianHeavyIndustry/timeline/Litian%20Heavy%20Industry%20Machinery%20Co.%2C%20Ltd/event/NeS3cZaQJc4#comments http://pastport.jp/user/LitianHeavyIndustry/timeline/Litian%20Heavy%20Industry%20Machinery%20Co.%2C%20Ltd/event/NeS3cZaQJc4 Soft Ground Cutter(2022年) <p><a href="https://www.litechtools.com/products/soft-ground-cutters.html">https://www.litechtools.com/products/soft-ground-cutters.html</a></p> <p>Soft ground cutter refers to a rock breaking tool that only rotates with the cutter head and does not rotate. There are many kinds of soft soil cutting tools, and currently commonly used mainly include TBM scraper, edge scraper, cutting knife, rippers, buckets, etc.</p> <p>The suitable formations are from 15Mpa to 100Mpa, which can be used in the soft ground alone and can also be used as an auxiliary tool for the hard rock.</p> <p>Applicable equipment: Tunnel boring machine, Pipe jacking machine, earth pressure balance shield machine, micro tunneling machine, etc.</p> <p>Litian Heavy Industry Machinery Co., Ltd (Litian Rock Tools) is a drill rod factory. We provide rock drilling tools china, rock mining tools, drill extension rod, etc.<br /> <a href="https://www.litechtools.com/uploads/image/20211129/18/soft-ground-cutter-mining-machine-parts-litian_1638181383.jpg" rel="nofollow"><img src="https://www.litechtools.com/uploads/image/20211129/18/soft-ground-cutter-mining-machine-parts-litian_1638181383.jpg" alt="soft-ground-cutter-mining-machine-parts-litian_1638181383.jpg" /></a></p> 2022-08-25T11:05:38+0900 http://pastport.jp/user/LitianHeavyIndustry/timeline/Litian%20Heavy%20Industry%20Machinery%20Co.%2C%20Ltd/event/tsysAOzLvMJ LitianHeavyIndustry http://pastport.jp/user/LitianHeavyIndustry/timeline/Litian%20Heavy%20Industry%20Machinery%20Co.%2C%20Ltd/event/tsysAOzLvMJ#comments http://pastport.jp/user/LitianHeavyIndustry/timeline/Litian%20Heavy%20Industry%20Machinery%20Co.%2C%20Ltd/event/tsysAOzLvMJ Single Disc Cutter(2022年) <p><a href="https://www.litechtools.com/products/single-disc-cutters.html">https://www.litechtools.com/products/single-disc-cutters.html</a></p> <p>Single disc cutter, also known as single disk, is a kind of disc cutter with only one cutter ring, which is mounted on the front and gauge area of the cutter head. It is mainly used as face cutter and gauge cutter to break hard rock with high uniaxial compressive strength (UCS≥70Mpa) and mixed ground. It is a key cutting tool for rock excavation.</p> <p>Eccentric disc cutter is a kind of single disc cutter. The cutter ring of eccentric disc cutter is inclined to one side of the cutter hub, and this type of TBM disc cutter is usually mounted on the gauge area of cutter head, also known as gauge disc cutter.</p> <p>Litian Heavy Industry Machinery Co., Ltd (Litian Rock Tools) is a drill rod factory. Our products and services are divided into three categories: Top hammer drilling tools, TBM cutters, Raise boring drilling tools.<br /> <a href="https://www.litechtools.com/uploads/image/20220310/18/tbm-disc-cutter.jpg" rel="nofollow"><img src="https://www.litechtools.com/uploads/image/20220310/18/tbm-disc-cutter.jpg" alt="tbm-disc-cutter.jpg" /></a></p> 2022-08-25T11:05:05+0900 http://pastport.jp/user/LitianHeavyIndustry/timeline/Litian%20Heavy%20Industry%20Machinery%20Co.%2C%20Ltd/event/h9T6QAVQ4Rg LitianHeavyIndustry http://pastport.jp/user/LitianHeavyIndustry/timeline/Litian%20Heavy%20Industry%20Machinery%20Co.%2C%20Ltd/event/h9T6QAVQ4Rg#comments http://pastport.jp/user/LitianHeavyIndustry/timeline/Litian%20Heavy%20Industry%20Machinery%20Co.%2C%20Ltd/event/h9T6QAVQ4Rg Shank adapter(2022年) <p><a href="https://www.litechtools.com/products/shank-adapter/">https://www.litechtools.com/products/shank-adapter/</a></p> <p>Shank adapter, the role of it in rock drilling is to directly bear the impact energy and torque of the rock drill, and is used to transfer the energy from drill rig to drill rod. One end of the shank adaptor is connected to drill rig, and another end is connected to drill rod, so that the energy of drill rig can be transmitted to drill bit, and finally achieve the purpose of drilling.</p> <p>The specification and hardness of top hammer shank adaptor have a great influence on the rock drilling speed and the life of the rock drill. The hardness of the shank adapter for drill should be appropriate, the service life is short if the rock drill shank is too soft, the piston is vulnerable to damage if the drill shank adapter is too hard. Litian shank adaptor has accurate specifications, smooth surface, suitable hardness, the cross-section is perpendicular to the axis, and closely coincides with rock drill sleeve.</p> <p>Different Types Of Litian Drill Shank Adapter<br /> Litian offers male and female threaded shank adapter, also called striking bar or shank rod, such as T38 shank adapter, T45 shank adapter, T51 shank adaptor, etc. Our China shank adapters are suitable for various brands of rock drills, such as Atlas Copco, Sandvik, Furukawa, Montabert, Ingersoll-Rand, Tamrock, etc., and the rock drill shank adapter (drill shank adaptor) also can be designed according to customer needs.</p> <p>Shank Adapter Product Specification<br /> Each Shank Adapter for drill is carefully inspected and packaged to ensure that it reaches you safely and undamaged.<br /> Product<br /> Top Hammer Rock Drilling Tool - Shank Adapter</p> <p>Other Names<br /> Top hammer shank adaptor, Drill shank adapter, Striking bar, Hydraulic shanks, Shank bar, strike bar </p> <p>Material<br /> Structural Alloy Steel</p> <p>Application<br /> Tunnelling , Mining , Quarrying, Blasting and Infrastructure Construction</p> <p>Facedrilling and Bolting, Bench Drilling, Production drilling, Long hole drilling, Drifting</p> <p>Applicable rock drill<br /> Atlas Copco (Epiroc), Sand vik (Tamrock), Furukawa, Ingersoll-Rand, Montabert, Boart LongYear, etc.</p> <p>Shank Type<br /> Male threaded shank adapter, Female threaded shank adapter</p> <p>Thread Type<br /> R25, R28, R32, R35, R38, T38, T45, T51, GT60, ST58, ST68</p> <p>Diameter<br /> 32mm~90mm</p> <p>Length<br /> 370mm~835mm</p> <p>Custom Design<br /> Acceptable</p> <p>Shank Adapter Product Advantages</p> <p>High-quality steel<br /> Litian shank adapters use high-quality alloy structural steel as the raw material, undergoes overall carburizing treatment, and adopt special CNC machine tool processing equipment and processing flow to ensure the processing quality of splines, water holes and other details, which can meet the requirements of drilling harder rock layers and have a longer service life.</p> <p>Advanced manufacturing technology<br /> Litian shank adapters adopt advanced thread manufacturing technology and advanced surface treatment technology, and are manufactured according to precise tolerances. They have the characteristics of tight connection, good energy transmission effect, strong wear resistance, and easy disassembly. Our shank adapters are uniformly heat-treated and scientifically straightened with precision instruments to ensure straightness and anti-irritability.</p> <p>Strict quality control<br /> All the top hammer shank adapters are strictly controlled to ensure that they have satisfactory high quality.</p> <p>Top Hammer Shank Adaptor Packing<br /> Each Shank Adapter for drill is carefully inspected and packaged to ensure that it reaches you safely and undamaged.</p> <p>Litian Heavy Industry Machinery Co., Ltd (Litian Rock Tools) is a crock drill bits factory. Our products and services are divided into three categories: Top hammer drilling tools, TBM cutters, Raise boring drilling tools.<br /> <a href="https://www.litechtools.com/uploads/image/20211123/11/striking-bar-pd200.jpg" rel="nofollow"><img src="https://www.litechtools.com/uploads/image/20211123/11/striking-bar-pd200.jpg" alt="striking-bar-pd200.jpg" /></a></p> 2022-08-25T11:04:35+0900 http://pastport.jp/user/LitianHeavyIndustry/timeline/Litian%20Heavy%20Industry%20Machinery%20Co.%2C%20Ltd/event/r1vJFGCDS2C LitianHeavyIndustry http://pastport.jp/user/LitianHeavyIndustry/timeline/Litian%20Heavy%20Industry%20Machinery%20Co.%2C%20Ltd/event/r1vJFGCDS2C#comments http://pastport.jp/user/LitianHeavyIndustry/timeline/Litian%20Heavy%20Industry%20Machinery%20Co.%2C%20Ltd/event/r1vJFGCDS2C Retrac Button Bit(2022年) <p><a href="https://www.litechtools.com/products/retrac-button-bit/">https://www.litechtools.com/products/retrac-button-bit/</a></p> <p>Retrac button bits are mainly used in loose rock mass with relatively broken rock. The retrac skirt design can assist in retrieving the drill tool, reduce the phenomenon of bit stuck and buried, and help improve the straightness of the borehole.</p> <p>As a China retrac button bit supplier, we can provide you with high-quality retrac rock drill bits, such as R25 retract button bit, R28 retract button bit, R32 retrac button bit, R35 retrac button bit, R38 retrac button bit, T38 retract drill bit, T45 retract drill bit, T51 retract drill bit, GT60 retract button bit, ST58 retrac button bit, ST68 retrac button bit...</p> <p>Litian Retrac Button Bit Features<br /> Litian retrac bit are made of high-quality steel and cemented carbide as raw materials, so they have a long service life. And the use of retrac bits minimize the loss of impact energy during transmission. In addition, the advanced button fixing technology makes the fixing force uniform and not easy to loose buttons. Meanwhile, the use of retract drill bits also ensures the perpendicularity of the borehole, so that the impact energy is concentrated on the rock and the drilling efficiency is improved.</p> <p>Retrac Button Bit Application<br /> No matter it is mining, rock drilling, or tunneling and blasting, Litian retract bits are suitable for all these situations.</p> <p>There are many rock drilling tools manufacturers, but we are one of the best choices for you. If you want to buy rock drilling tools, contact us.<br /> <a href="https://www.litechtools.com/uploads/image/20211207/15/button-drill-bit.jpg" rel="nofollow"><img src="https://www.litechtools.com/uploads/image/20211207/15/button-drill-bit.jpg" alt="button-drill-bit.jpg" /></a></p> 2022-08-25T11:03:16+0900 http://pastport.jp/user/LitianHeavyIndustry/timeline/Litian%20Heavy%20Industry%20Machinery%20Co.%2C%20Ltd/event/YwQiSup28uN LitianHeavyIndustry http://pastport.jp/user/LitianHeavyIndustry/timeline/Litian%20Heavy%20Industry%20Machinery%20Co.%2C%20Ltd/event/YwQiSup28uN#comments http://pastport.jp/user/LitianHeavyIndustry/timeline/Litian%20Heavy%20Industry%20Machinery%20Co.%2C%20Ltd/event/YwQiSup28uN