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https://www.kailitemachinery.com/products/sj-series-high-efficiency-single-screw-extruders/

Qingdao Kailite Plastic Machinery Co.,LTD is a well-known domestic enterprise in the plastic machinery and plastic products industry, and has passed the ISO 9001 international quality system certification. The company's main products include plastic machinery series: extruder, plastic pipe production line, plastic sheet/sheet equipment, plastic profile extrusion line, wood-plastic equipment, plastic recycling granulator, plastic crusher, etc.

What is Single Screw Extruder
1.Single extruder screw is fetured in high production capacity and high-velocity extrusion, and low-temperature plasticization design guarantees production warranty.
2.Two stages style unitary design of single screw extruder which reinforces plasticization capacity guarantees high performance and high velocity extruding.
3.BM type synthetic blending design, the particular kind of barrier, guarantees mixing effect.
4.Plastic single screw extruder has high twisting force output and the huge thrust bearing.
5.The gear and shaft of plastic single screw extruder is high-intensity alloy steel which are treated by the cementite and tooth grinding.
6.Other characteristics is like high hardness , clean degree and extremely low noise.
7.Significant single screw extruder price advantage

SJ Series High Efficiency Single Screw Extruder Specification
Model ltem
SJ-30B
SJ-45B
SJ-65B
SJ-90B
SJ-120B
SJ-150B

Length diameter patio
25-33
25-33
25-33
25-33
25-33
25-33

Main motor power
2.2-7.5
2.5-22
18.5-55
55-185
90-280
110-300

Heating power
5-8
6-12
12-18
16-40
20-60
30-80

Cooling mode
Fan water cooling

Max extruding capacity
18
60
180
450
650
950

Performance & Advantages of SJ Series High Efficiency Single Screw Extruder
PLC intelligence control of high efficiency single screw extruder achieves the linkage action of main machine and auxiliary.
Man-machine interface is easy to supervise the single screw extruder process and the machinery condition.
Control mode (temperature control meter) may be replaced in the light of requirements.
Material character is 38 CRMoALIA through nitrogen treatment.
High efficiency single screw extruder has strict temperature control accuracy as well as wind cooling and water cooling unite.
Single screw extruder wiki is equipped with the distinctive feeding inlet with consummate water-cooling unit design.
The barrel with channel surface feeding base suit has the function of increasing capacity, which ensures high efficiency and production capacity.

Working Principle of Single Screw Extruder?
Here are five steps introducing the single screw extruder machine working principle:
Step 1: feed resin or pellets
The polymer, as a powder or granule, is continuously fed into the extruder barrel from the hopper.

Step 2: Resin melting
The heated barrel melts the polymer and transports the material through the mold.

Step 3: The actual extrusion process
The screw channel exerts force on the polymer through the rotating screw, while the stationary barrel exerts a destructive force on the rotating polymer and causes the polymer to slide slightly on the surface of the screw.

Step 4: Cooling
After passing through the mold, your plastic will pass through the cooling zone.

Step 5: Final finishing process
It involves finishing touches to your plastic. This includes drilling, printing, bending or cutting.

Use of Single Screw Extruder
1.Plastic pipe extrusion: suitable for PP-R pipes, PE gas pipes, PEX cross-linked pipes, aluminum-plastic composite pipes, ABS pipes, PVC pipes, HDPE silicon core pipes and various co-extruded composite pipes.
2.Sheet extrusion: suitable for the extrusion of PVC, PET, PS, PP, PC and other profiles and sheets. Extrusion of various other plastics such as silk, rods, etc.
3.Profile extrusion: adjusting the speed of the extruder and changing the structure of the extrusion screw can be used to produce various plastic profiles such as PVC and polyolefin. Modified granulation: It is suitable for blending, modifying and enhancing granulation of various plastics.