Production Capabilities
Compression molding, transfer molding and injection molding — all under one roof. In-house mold design, CNC tooling and a full testing laboratory. ISO 9001 and IATF 16949 certified at every stage.
Three Technologies. One Supplier.
Having all three rubber molding processes in-house means we select the most appropriate method for each part — optimising quality, cycle time and tooling cost without outsourcing any stage of production.
Compression Molding
Pre-formed rubber blanks are placed directly in an open mold cavity and vulcanised under heat and pressure. Compression molding is well suited to medium and high volumes of relatively simple geometries, offering low tooling cost and material efficiency. Our compression presses range from 50 T to 500 T, covering a wide range of part sizes and hardness specifications.
- Suitable for: solid seals, vibration mounts, bushings, flat gaskets
- Advantages: low tooling investment, wide compound compatibility
- Typical tolerance: ±0.1 mm on critical dimensions
Transfer Molding
Rubber compound is transferred from a pot through sprues into a closed mold cavity. This process delivers tighter dimensional consistency than compression molding and is particularly effective for rubber-to-metal bonded components where inserts must be precisely located. Transfer molding is our primary method for complex geometries requiring close tolerances and uniform cross-sections.
- Suitable for: rubber-to-metal bonded parts, precision seals, bellows
- Advantages: high dimensional repeatability, suitable for inserts
- Typical tolerance: ±0.05 mm on critical dimensions
Injection Molding
Liquid or pre-plasticised rubber compound is injected under high pressure into a closed, temperature-controlled mold. Injection molding achieves the highest dimensional consistency and shortest cycle times for high-volume production runs. It minimises flash, reduces post-processing labour and is the preferred process for technically demanding components with intricate geometries or tight Shore hardness tolerances.
- Suitable for: high-volume seals, precision dampers, O-rings, complex profiles
- Advantages: minimal flash, shortest cycle times, highest repeatability
- Typical tolerance: ±0.03 mm on critical dimensions
In-House Tooling Capability
Mold design and CNC machining are performed entirely within our facility. Our tooling engineers use CAD/CAM software to translate customer drawings into production-ready mold designs, accounting for compound shrinkage, parting line location and venting requirements specific to each rubber grade.
Keeping tooling in-house delivers three tangible benefits to our customers: faster first-article lead times (tooling modifications do not require external coordination), lower NRE costs compared to purchasing from specialist toolmakers, and direct engineering accountability when design iterations are required during the approval phase.
All molds are maintained and documented under our IATF 16949 process controls. Tooling records, maintenance logs and cavity qualification data are retained and available on request as part of the PPAP package.
Five-Stage Quality Process
Quality is built into the process, not inspected in at the end. Every stage is documented and traceable under our ISO 9001 and IATF 16949 management systems.
Incoming Material Inspection
All raw rubber compounds and metal inserts are inspected on receipt against approved material specifications. Certificate of conformance, hardness, density and compound identity are verified before any material enters production stock.
In-Process Control
Dimensional checks and visual inspection are performed at defined intervals during production runs. Process parameters — curing temperature, pressure and time — are monitored and recorded for every batch to ensure consistent vulcanisation.
Final Inspection
100% visual inspection and statistical dimensional sampling are performed on finished parts before packing. Parts are checked against the approved control plan. Non-conforming items are segregated and dispositioned through our corrective action process.
Laboratory Testing
Our in-house laboratory performs hardness (Shore A/D), tensile strength, elongation at break, compression set and adhesion tests to ASTM, ISO and DIN standards. Ageing, media resistance and temperature cycling tests are available on request for qualification programs.
PPAP / First Article Approval
For automotive and OEM customers, we supply full PPAP documentation packages including dimensional report, material certifications, process flow, PFMEA, control plan and appearance approval. First article inspections are conducted to AIAG standards or customer-specific formats.
Material Engineering to Your Specification
Our technical team works directly from customer material specifications, application data sheets or performance requirements to formulate the appropriate rubber compound. We do not rely solely on off-the-shelf formulations — compound development is part of the service.
Where customers supply a material specification (e.g. a DIN, ASTM or OEM-specific standard), we validate compound compliance through our in-house laboratory prior to first-article submission. This avoids costly approval delays and ensures the approved compound is stable across production batches.
Our compound development capabilities cover NBR, EPDM, NR, SBR, CR, VMQ (silicone) and FKM (Viton) base polymers, with formulations available across a Shore A hardness range of 30–90.
Rubber Compounds We Process
Compound selection is critical to part performance. Our engineers advise on the optimal material for your application, temperature range and media exposure.
Nitrile Rubber
−40 °C to +120 °C
Excellent resistance to oils, fuels and hydraulic fluids. The primary compound for automotive seals, O-rings and engine-bay components.
Ethylene Propylene Diene
−50 °C to +150 °C
Outstanding ozone, UV and weathering resistance. Preferred for exterior automotive seals, HVAC gaskets and water-circuit components.
Natural Rubber
−60 °C to +80 °C
High tensile strength, excellent dynamic properties and fatigue resistance. Widely used for anti-vibration mounts, engine mounts and structural dampers.
Styrene-Butadiene Rubber
−40 °C to +100 °C
Good abrasion resistance and cost-effective for general-purpose applications. Commonly used for bushings, pads and non-oil-contact sealing components.
Chloroprene (Neoprene)
−40 °C to +120 °C
Flame-resistant, good weathering and oil resistance. Used for bellows, protective covers and components requiring balanced oil and ozone resistance.
Fluorocarbon Rubber (Viton)
−20 °C to +200 °C
Superior resistance to aggressive chemicals, fuels and high temperatures. The preferred material for demanding automotive powertrain and chemical-process sealing applications.