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.
Zhongde, a reputable company providing customized compression molding service, include both plastic and rubber. The molding pressure of the compression molding process is higher than other process methods, and it belongs to high-pressure molding. 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 Five 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 moulding
Some of the advantages of injection molding over compression molding including following:
▪ Efficient and fast turnaround production time
▪ Low production costs
▪ Supports complex mold design
Capabilities of Custom Compression Molding
| Name | Description |
|---|---|
| Rapid tooling | Mold working life time up to 20,000 runs. Short machined time. |
| Production tooling | Traditional molds, used for mass production |
| Single cavity molds | Molds only produce one part per cycle, mostly used for low production rates. |
| Multi-cavity molds | Molds 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
| Name | Description |
|---|---|
| Mold material | Steel P20, H13, S136, 2316, 2344, 083,718H, SKD618, etc. |
| Mold type | Family molds, single and multi-cavities molds |
| Mold storage | 3 years inactivity |
| Guaranteed Mold Life | Unlimited |
| Mold remachining | We can remachine the molds if there are any changes required, basis on mold structure. |
| Mold warranty | Lifetime warranty on production molds |
| Maximum dimensions | 3000mm*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 Plastic Compression Moulding Process
Custom Rubber Compression molding Process
What is compression moulding used for?
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
| Description | Metric | Inch |
|---|---|---|
| Length | 3000 | 118 |
| Width | 2500 | 98.4 |
| Height | 2000 | 78.7 |
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.
- NR | Natural Rubber
- NBR | Nitrile Rubber
- SBR | Styrene-butadiene Rubber
- HNBR | Hydrogenated Nitrile
- CR | Neoprene Rubber
- VMQ | Silicone
- FVMQ | Fluorosilicone
- FKM | Fluorocarbon
- FFKM | Perfluorocarbon Rubber
- EPDM | Ethylene-Propylene Diene Monomer Rubber
- IR | Polyisoprene Rubber
- IIR | Butyl Rubber
TPE Compression Molding
- TPE
- TPV
- TPU
- TPR
Additives of Custom Compression Molding
| Name | Description |
|---|---|
| UV absorbers | Absorb UV radiation, slowing down the degradation of the material when used outdoors. |
| Flame retardants | Prevent ignition and inhibits the spread of fire. |
| Plasticizers | Increase flexibility and promotes plasticity, reducing brittleness of the material. |
| Colorants | Used to color plastics. |
| Carbon fibers | Increase strength, toughness, and rigidity of the material at the expense of making the material more brittle. |
| Glass fibers | Increase strength, toughness, and rigidity of the material at the expense of making the material more brittle. It is more flexible than carbon fibers. |
Service
Injection Molding
- Plastic Injection Molding
- Rubber Injection Molding
- Overmolding & Insert Molding
Compression Molding
Cast Molding
CNC Machining
- CNC Milling
- CNC Turning
Metal Stamping
3D Printing
- Fused Deposition Modeling
- Selective Laser Sintering
Material Selection
Color Option
Surface Finishing
Assembly & Packaging
Custom Products
Custom Plastic Parts
- Plastic Parts
- Plastic Bonding Metal Parts
Custom Rubber Parts
- Rubber Parts
- Rubber Bonding Metal Parts
- Rubber With Fabric Parts
- Rubber Bonding Plastic Parts
Custom TPE Parts
- TPE Parts
CNC Machining Parts
- Plastic CNC Machining Parts
- Metal CNC Machining Parts
3D Printing Parts
- Plastic 3D Printing Parts
- Metal 3D Printing Parts
- Assembly Parts
Compression Molding Parts
FAQs of Compression Molding Services
What is the service life of the mold?
Generally speaking, one set of molds can produce millions of products, and we will provide mold maintenance and repair services. If the upper limit of mold usage is reached, we will reopen a set of molds for free.
Where is the tooling when my injection mold is done?
As a one-stop rubber and plastic injection molding manufacturer, we will make the tooling by ourselves. As long as you continue to run parts in our facility, we will keep the molds for you and make any necessary repairs or refurbishments at our cost for the life of your mold.
What are types of compression molding?
There are two types of compression molding process, i.e., cold compression and hot compression moldings.
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