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https://www.zdcpu.com/services/compression-molding/

Custom Compression Molding Service

Compression Molding
Custom compression molding is a method of forming plastic or rubber in a closed cavity by heating and hot pressing. It is a good choice for manufacturing large pieces, and low-to-medium quantities production with competitive tooling price.
The materials of Zhongde, a reputable company providing customized compression molding service, include both plastic and rubber. The molding pressure of the plastic compression molding products process is higher than other process methods, and it belongs to high-pressure molding. As one of compression molding companies, we utilize hydraulic presses that can control the pressure, and high-strength, high-precision, and high-temperature resistant metal molds to guarantees the quality of molded products. Using the compression molding process, we can guarantee high-efficiency production, ensure accurate products, and smooth surface.
Plastic compression molding, rubber compression molding, silicone compression molding are all available. 
Other types: cold compression molding, vacuum compression molding, direct compression molding, composite compression molding...
What are Three Advantages of Compression Molding Services?

Less mold structure with competitive tooling price

Evenly heated mold cavity with good dimensional stability

Little material waste suitable to work with expensive material
Available for forming large flat products
More than hundreds of colors to choose from
Advantages of injection moulding over compression mouldin
Some of the advantages of types of compression molding over compression molding including following:
▪ Efficient and fast turnaround production time
▪ Low production costs
▪ Supports complex mold design

Capabilities of Custom Compression Molding 

NameDescription
Rapid toolingMold working life time up to 20,000 runs. Short machined time.
Production toolingTraditional molds, used for mass production
Single cavity moldsMolds only produce one part per cycle, mostly used for low production rates.
Multi-cavity moldsMolds can produce more than one part per cycle, used to increase production rate.
Family molds
Molds produce two or more different parts per injection cycle, the parts should be of the same material and color.

Precision Compression Molding Service

NameDescription
Mold materialSteel P20, H13, S136, 2316, 2344, 083,718H, SKD618, etc.
Mold typeFamily molds, single and multi-cavities molds
Mold storage3 years inactivity
Guaranteed Mold LifeUnlimited
Mold remachiningWe can remachine the molds if there are any changes required, basis on mold structure.
Mold warrantyLifetime warranty on production molds
Maximum dimensions3000mm*2500mm*2000mm

Custom Compression Moulding Process

Compression molding is a tried-and-true method of manufacturing simple pieces. The process start from giving amount of uncured material placed into a mold cavity, which is then closed and heated. When the parts have cured, they are removed from the mold.

Custom Rubber Compression molding Process
What is compression moulding used for？
Compression moulding is a composite manufacturing process normally used to produce composite components in high production volume, generally used to make larger flat or moderately curved part
What products are made by compression moulding
Compression molding is a process of molding in which a feeding material is placed into an open, heated mold cavity. Many products can be produced by compression molding, such as rubber gasket, handles, automotive parts and many other large size products.
Sizes Option of Different types of Compression Molding

The below table shows the size of Compression Molding parts we usually make. If you need a larger size, we can also help you achieve it.

SizeMetricInch
Length3000118
Width250098.4
Height200078.7

What Materials are Used in Compression Moulding

In addition to the general materials listed below, Zhongde can also modify the materials according to the special needs of customers. Our professional engineers will adjust the raw material formula to meet the unique conditions of use.
Compression molding plastic material
Thermoset plastics and Thermoplastics are two types of material most often used for compression molding. Thermoset plastic often refers to  polyurethane, unsaturated. Common types of thermoplastics are  UHMWPE, PTFE.
UHMWPE | Ultrahigh molecular weight polyethylene
PTFE | Polytetrafiuoroethylene
Compression molding rubber material
A wide range of rubber material can be process by compression molding ,including Butyl, Natural Rubber, Neoprene, Nitrial, SBR, etc.
Additives of Custom Compression Molding
NameDescription
UV absorbersAbsorb UV radiation, slowing down the degradation of the material when used outdoors.
Flame retardantsPrevent ignition and inhibits the spread of fire.
PlasticizersIncrease flexibility and promotes plasticity, reducing brittleness of the material.
ColorantsUsed to color plastics.
Carbon fibersIncrease strength, toughness, and rigidity of the material at the expense of making the material more brittle.
Glass fibersIncrease strength, toughness, and rigidity of the material at the expense of making the material more brittle. It is more flexible than carbon fibers.

If you want tp know more applications of custom rubber prototype, please visit our website.

As one of custom injection molding companies, we will do our best to meet all the needs of customers.