Compression Molding Service for Molded Rubber Parts

Compression Molding Service
Compression molding is an ideal process for producing large, high-strength molded parts with intricate designs. The process begin with placing the preheated material, typically a thermoset plastic or rubber, into a heated mold cavity. The the mold is closed, and the high pressure forces the material to comform to the shape of the mold, creating the desired shape compression molding products.
Our facility is equipped with over 30 sets of compression molding machines, capable to handle various materials, part sizes, and production volume. Erye engineering team will support you from custom design to prototyping and mass production.Compression Molding Service Specifications
Service | Details |
---|---|
Process Materials | Most rubbers, PTFE and UHMWPE, including custom sourcing, see our material list below |
Standard Finishes | SPI and VDI |
Minimum Wall Thickness | To maintain structural integrity, a wall thickness of at least 0.75 mm is necessary. For best results, we recommend a wall thickness of at least 1.5 mm |
Maximum Part Dimensions | Our largest molding machine can process parts within 2500x2000mm. |
Mold Service | DFM report and mold flow analysis |
Mold Ownership | Customer owned with regular mold maintenance |
Mold Cavities | Single or multi-cavities |
Mold Life | Unlimited (If the mold worn out, Erye will cover the cost for the new set of mold) |
Compression Molding Products
Rubber Compression Molding
Plastic Compression Molding
Silicone Compression Molding
PTFE Compression Molding
UHMW Compression Molding
Additional Rubber Molding Options
Materials for Compression Molding Products
Silicone
EPDM
NR
NBR
CR
SBR
IIR
FKM
FFKM
UHMWPE
PTFE
Silicone
Silicone Rubber
Silicone rubber has excellent thermal stability, flexibility, and electrical insulation properties. It is also highly resistant to UV, ozone, and weathering. It can withstand a wide temperature range making it ideal for both high and low temperature applications.
Silicone rubber molding is often used to produce seals, gaskets, and custom parts for industries such as automotive, medical, and consumer electronics.
EPDM
Ethylene Propylene Diene Monomer
EPDM (Ethylene Propylene Diene Monomer) rubber is commonly used for applications requiring excellent weather, ozone, and UV resistance. It maintains its flexibility and durability even under extreme temperatures.
EPDM compression molding is used to create seals, gaskets, weather strips, and hoses. Its resistance to aging, water, and steam makes it a preferred material for industries such as automotive, construction, and electronics.
NR
Natural Rubber
Natural Rubber (NR) is known for its excellent elasticity, resilience, and abrasion resistance. NR is ideal for applications that require high flexibility and tensile strength. It also offers good resistance to wear, tear, and environmental conditions.
NR compression molding ensures uniformity and consistency in the final product, making it efficient for large-scale production.
NBR
Nitrile Butadiene Rubber
NBR commonly known as nitrile rubber, is a synthetic rubber known for its excellent resistance to oils, fuels, and chemicals. NBR is a common used material in automotive, industrial, and oil and gas industires.
NBR compression molding is ideal for manufacturing parts that require tight tolerances and complex shapes.
CR
Chloroprene Rubber
CR commonly known as Neoprene, is a synthetic rubber with excellent weather, ozone, and aging resistance. CR is especially valuable in applications that require durability in challenging environments, such as automotive, electrical insulation, and marine products.
CR compression molding often use to produce complex and durable parts, such as gaskets, seals, and protective covers. Neoprene is able to maintain its physical properties over time, even under exposure to environmental stressors.
SBR
Styrene-Butadiene Rubber
SBR (Styrene-Butadiene Rubber) is a synthetic rubber commonly used for manufacturing durable and cost-effective parts. It offers excellent resistance to abrasion, aging, and heat, making it ideal for applications requiring toughness and longevity.
SBR compression molding is used to produce components such as seals, gaskets, and automotive parts. Its ease of processing enable efficient production of high-quality molded products that meet strict specifications for performance and durability.
IIR
Isobutylene isoprene rubber
IIR (Butyl Rubber) is a synthetic rubber known for its excellent air and moisture impermeability, making it an ideal choice for sealing applications. It is highly resistant to chemicals, UV light, and oxidation.
In compression molding, IIR butyl rubber is used to create durable, high-quality components like seals, gaskets, and vibration dampeners. The material’s ability to withstand extreme temperatures and its flexibility make it perfect for molding complex shapes with tight tolerances.
FKM
Fluoroelastomer
FKM rubber, also known as fluorocarbon rubber, is a high-performance material often usedfor applications requiring exceptional chemical resistance and high-temperature performance. FKM rubber can withstand extreme temperatures and offers excellent resistance to oils, fuels, solvents, and aggressive chemicals.
FKM compression molding is commonly used for seals, gaskets, O-rings, and other components that need to endure harsh conditions.
FFKM
Perfluoroelastomer
FFKM is an advanced synthetic rubber known for its unparalleled chemical resistance and high-temperature stability, capable of withstanding extreme conditions up to 327°C, and offers excellent resistance to oils, fuels, solvents, and aggressive chemicals.
FFKM compression molding is commonly used for seals, gaskets, O-rings, and other components that need to endure harsh conditions. The material’s low permeability to gases and excellent aging properties make it ideal for long-lasting, high-performance parts.
UHMWPE
Ultra-High Molecular Weight Polyethylene
UHMWPE (Ultra-High Molecular Weight Polyethylene) is one of the toughest plastics. It is highly resistant to chemicals, moisture, and abrasion, making it ideal in extreme environments like manufacturing, mining, and food processing.
UHMWPE compression molding parts can maintain structural integrity under heavy loads and have good self-lubricating properties.
PTFE
Polytetrafluoroethylene
PTFE (Polytetrafluoroethylene) has excellent chemical resistance, high thermal stability, and low friction properties. PTFE component is ideal in demanding environments, such as in chemical processing, electrical, and food industries.
PTFE compression molding parts, such as seals, gaskets, and bearings that can withstand extreme temperatures and corrosive substances without degradation.
Compression Molding Surface Finishing Standard
SPI A: Glossy Finish
Provides a highly reflective surface, ideal for aesthetic applications such as consumer products.
- Price Range: $$$
- SPI Finish Grades: SPI A1, A2, A3
SPI B: Semi-Gloss Finish
Offers a moderate sheen, balancing gloss and matte, suitable for parts needing some visual appeal without being overly shiny.
- Price Range: $$
- SPI Finish Grades: SPI B1, B2, B3
SPI C: Matte Finish
Features a non-reflective surface that reduces glare, often used for functional parts where aesthetics are less critical.
- Price Range: $
- SPI Finish Grades: SPI C1, C2, C3
SPI D: Textured Finish
Enhances grip and durability, commonly applied to functional components to improve handling and reduce wear.
- Price: $
- SPI Finish Grades: SPI D1, D2, D3
01
Send Drawings & Get a Quote
02
DFM & Mold Production
03
Sample Confirmation
04
Production & Quality Check
Advantages of Compression Molding with Us
Complex Geometries and Large Part Sizes
Flexible Production Volumes
Tailored Rubber Formulas
Compression Molding Applications
Compression Molding FAQs
Share your part design, including CAD files, material requirements, and expected quantities. Contact us directly via email or our website to start your quote process!
When placing an order that requires tooling, the lead time typically depends on the complexity of the mold and design requirements. As rubber molding manufacturers, Erye offer full service from mold to production, we aim to deliver tools within 4-6 weeks for most projects. For simpler tools, the timeline may be shorter, while more intricate or large-scale molds may require additional time. We provide a detailed schedule after reviewing your project specifications to ensure transparency and on-time delivery.
Once you pay for the tooling, the ownership of the mold tooling typically transfers to you, the customer. We shall not use the mold by ourselves without permission from the customer.
Erye has more than 100 sets of machines for rubber molding production, including both compression molding machine and injection molding machine. Generally, each molding press allows for several hundreds of molded pars per day.
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