Delivering durable, high-tolerance rubber components with exceptional material efficiency and reduced tooling costs for optimal production.
The reliability and cost-effectiveness of rubber compression moulding stem from its straightforward and highly controlled four-step cycle. This process ensures that the resulting custom rubber components maintain superior physical properties, leading to longer service life and exceptional performance in demanding applications.
The foundational principle of compression moulding is to form an elastomeric part by placing a pre-measured amount of raw material directly into a heated mould cavity and then closing the mould under high pressure.
Pre-forming/Blanks:
The cycle begins with the preparation of the raw material, known as a blank or charge. The compound (un-vulcanized rubber) is often pre-formed into a shape and size closely resembling the final product to minimize waste and ensure the cavity is filled uniformly. Pre-heating the blank is a common step to reduce the required cure time.
Loading:
The pre-formed blank is precisely positioned by an operator or automated system directly into the open, heated cavity of the mould. Unlike injection or transfer moulding, there are no sprues or runners; the material is loaded into the cavity, not through a gate system.
Pressing/Curing:
The two halves of the mould—the cavity and the force/core—are brought together and held under immense pressure (often between 500 to 2,000 PSI). The mould’s heat, combined with the pressure, initiates the vulcanization or curing process. The pressure forces the material to fill the entire mould geometry and holds it in place while the chemical cross-linking occurs, which gives the rubber its permanent elastic shape and strength. The cure time depends on the compound, durometer, and part thickness.
Removal/Finishing:
Once the curing is complete, the mould is opened, and the solid rubber part is removed. A small amount of excess material, known as flash, will typically form around the parting line. The final step, finishing (often called deflashing or trimming), involves cleanly removing this excess material to achieve the finished, high-tolerance custom rubber component.
Compression moulding is an excellent choice for compounds that have a very high viscosity or are challenging to flow through the narrow gates and runners of other moulding processes
Highly suitable due to its stability, temperature resistance, and clean processing. Used extensively for medical, food-grade, and high-heat applications.
Preferred for outdoor, automotive, and weather-sealing components due to its exceptional resistance to weathering, ozone, and heat.
Widely used for applications requiring oil and fuel resistance, such as O-rings, seals, and fuel hoses.
Selected for its balanced resistance to oil, heat, weathering, and abrasion, making it a staple for industrial seals and gaskets.
Ideal when high tensile strength, tear resistance, and dynamic properties are required, such as for vibration mounts.
Used for vibration isolators, gaskets, bellows, and grommets, offering durability and resistance to abrasion, chemicals, and outdoor elements for long-lasting machinery performance.
Our rubber compression moulding service is used to engineer custom components for superior, long-term performance in demanding environments. This precision process allows us to manufacture robust parts that leverage the unique strengths of various elastomers—such as Nitrile’s exceptional resistance to oils or EPDM’s weather durability—to ensure high-integrity sealing, protection, and functionality.
Rubber Bellows
Rubber Blocks
Rubber Bushes
Rubber Flanges
Rubber Diaphragms
Rubber Grommets
Our team is skilled in compression moulding high-consistency Silicone rubber and other elastomers, perfect for seals, gaskets, and thermally stable components.
Our ISO 9001 quality system governs every compression-moulded part, from material prep to final inspection, ensuring consistent, reliable components.
We utilise the efficiency of compression moulding to deliver your components quickly, adapting to changing demands for prototypes or full production runs.
We partner with you to refine your design for compression moulding, solving mechanical challenges and ensuring a cost-effective, high-quality part.
Contact our engineering team today to discuss your project specifications and receive a personalized quote for your custom rubber components
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We ship our goods worldwide using a variety of couriers including DPD, DHL, TNT, UPS and FEDEX. Please contact us to discuss your shipping requirements.
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We ship our goods worldwide using a variety of couriers including DPD, DHL, TNT, UPS and FEDEX. Please contact us to discuss your shipping requirements.
