Injection molded parts and Liquid Silicone Rubber Experts
Almost 90% of our productions have been transformed into automatic production with robots. Our highly professional production team uses a scientific and rigorous system management model to rationally arrange production plans and shorten production delivery.
● 3 Injection rooms for producing small, medium, and bigger sizes of injection molded parts
● 45 High-speed electro-motion injection machines imported from Japan, ranging from 30T to 140T from Nissei, JSW, Sumitomo.
● 25 Hydraulic Plastic Injection machines imported from Nissei Japan, ranging from 50T to 380T
● 1 special injection room for producing optical lenses, guides, and fresnel products.
● 3 clean rubber rooms for producing silicone rubber components.
The key factor in helping us to maintain our high quality is the use of the following quality systems throughout all of our business in the factory.
1. ISO9001:2015 – Quality Management
2. ISO14001:2015 – Environmental Management
3. IATF16949:2016 – Automotive Industry Quality Management Standard
4. ISO13485:2016-Medical Silicone Rubber Parts Production
5. 6S Managing system: SEIRI, SEITON, SEISO, SEIKETSU, SHITSUKE, SECURITY
Custom Molded Rubber & LSR Silicone Parts: Shore A 20-80 Keypads & Seals
Rilong Precision Mold is a specialized manufacturer of custom molded rubber parts, Liquid Silicone Rubber (LSR) injection moldings, and precision elastomeric keypads. Operating high-precision LSR injection presses, compression molding cells, and cryogenic deflashing systems, we produce Shore A 45±5 tactile rubber keypads, mirror-polished molded rubber seals, and medical-grade diaphragms with tight tolerances and zero flash.
Molded Rubber & Liquid Silicone Specifications
| Elastomer Type | Hardness Range | Surface Finish | Temperature Range | Key Industry Applications |
|---|---|---|---|---|
| Tactile Silicone Keypads & Keyboards Custom Elastomeric | Shore A 45±5 (Range: 30A to 70A) | SPI A-2 Polish / Laser Etched Graphics | -40°C to +150°C | Industrial remote controls, POS terminals, medical monitors, security consoles |
| Liquid Silicone Rubber (LSR) Platinum Cured 2-Part | Shore A 20A to 75A | SPI A-1 Diamond Polish / Translucent | -50°C to +200°C | Medical respiratory diaphragms, baby care nipples, waterproof earbud cushions |
| Fluoroelastomer (FKM / Viton®) Chemical Resistant | Shore A 60A to 85A | Smooth Ground / Matte Finish | -20°C to +230°C | Automotive fuel system O-rings, aerospace hydraulic seals, chemical valves |
| EPDM & NBR (Nitrile) Rubber Weather & Oil Resistant | Shore A 40A to 80A | VDI 3400 (24-30) Texture | -40°C to +125°C | HVAC outdoor weatherseals, automotive wire harness grommets, pipe gaskets |
Related Engineering Decision Guides
Liquid Silicone Rubber (LSR) Injection Molding & Shore A 45 Tactile Keypad Engineering
Flash-free cold-runner LSR tooling, Shore A 45±5 durometer snap ratios, conductive carbon pills, and laser etching.
Overmolding Metal with Plastic: Complete DFM, Insert Design & Bonding Guide
Knurling retention geometries, Chemlok primers, CTE mismatch mitigation, and robotic automated insert molding.
IP68 Waterproof Electronics Overmolding: Low-Pressure vs. LSR & TPE Encapsulation
Low-Pressure Molding (LPM) vs high-pressure encapsulation for delicate PCBs, sensors, and cable strain reliefs.
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