Based in Dongguan, Guangdong—China’s leading hub for automotive rubber component manufacturing—HS specializes in IATF16949 certified custom silicone rubber O-rings, engineered for high precision and multi-functional performance in automotive systems and industrial machinery. Our SR-HS02 silicone rubber O-rings (available in Silicone/EPDM/NBR/NR formulations) are precision-molded to meet the strict quality and safety standards of the automotive industry, with customizable sizes, a 1000-piece MOQ, and OEM/ODM support to deliver reliable, durable sealing solutions for global automotive manufacturers. Whether you require NBR oil-resistant O-rings for engine systems or EPDM weather-resistant seals for automotive exterior components, our IATF16949-certified production ensures compliance with automotive industry benchmarks and consistent performance across all applications.
Core Features of Our Silicone Rubber O-Rings Our silicone rubber O-rings stand out for their IATF16949 certification, high precision, and automotive-grade durability—key traits that make them ideal for multi-functional use in automobile and industrial machinery applications.First, material versatility and automotive compliance define our silicone rubber O-rings: Silicone offers high-temperature resistance (up to 230°C) and low-temperature flexibility (-40°C) for engine bay components; NBR delivers superior oil/fuel resistance for fuel and hydraulic systems; EPDM provides weather, ozone, and coolant resistance for automotive exterior and cooling systems; NR offers exceptional elasticity for general automotive sealing needs. All formulations are durable, resisting compression set, mechanical fatigue, and chemical degradation in harsh automotive operating environments.Second, high-precision manufacturing is central to our silicone rubber O-rings. Our moulding process achieves a tolerance of ±0.02mm, ensuring custom-sized O-rings fit seamlessly into automotive components—from fuel injector seals to suspension system bushings. We offer customer-requested colors and precise size customization (micro to large diameters), while maintaining consistent roundness and cross-section to guarantee leak-proof sealing performance critical for automotive safety.Third, multi-functional design is embedded in every silicone rubber O-ring. The robust elastomer composition adapts to diverse automotive use cases—absorbing vibration in chassis systems, sealing fluids in powertrain components, and resisting environmental exposure in exterior parts—eliminating the need for multiple seal types and simplifying automotive component inventory for manufacturers.
Competitive Advantages of Our Silicone Rubber O-Rings Choosing our silicone rubber O-rings means partnering with an IATF16949-certified manufacturer with 20+ years of automotive rubber expertise, prioritizing compliance, customization, and reliability for automotive clients. IATF16949 Certification & Quality Assurance Our entire production process for silicone rubber O-rings is IATF16949 certified, aligning with global automotive quality management standards. Every batch undergoes 100% quality inspection—including dimensional precision checks, material durability testing, and automotive performance validation—to ensure zero defects and compliance with OEM automotive requirements, reducing risk for automotive manufacturers. Customization Flexibility & OEM/ODM Support We welcome full OEM/ODM customization for silicone rubber O-rings: custom sizes (per automotive OEM drawings/specs), material blends (Silicone/EPDM/NBR/NR), colors, and branded marking (custom logos) are available. Free samples are provided to validate fit and performance before bulk orders, ensuring our O-rings integrate perfectly with automotive system designs. With a 1000-piece MOQ, we cater to small automotive component suppliers and scale to meet bulk orders for major OEMs. Cost-Effective Factory-Direct Pricing As a factory-direct manufacturer, we eliminate middlemen to offer competitive pricing on IATF16949-certified silicone rubber O-rings without compromising quality. Our automated moulding lines and large-scale production facility (10,000+ sq.m) optimize production efficiency, passing cost savings to clients while ensuring on-time delivery for automotive production schedules. Technical Expertise & Automotive Industry Support Our team of rubber engineering specialists with automotive industry expertise provides end-to-end support—from material selection guidance (e.g., silicone for high-heat engine parts, NBR for fuel systems) to technical drawing reviews. We offer 24/7 responsive service to address customization questions or supply chain needs, ensuring a seamless experience for automotive manufacturing clients worldwide.
Applications of Our Silicone Rubber O-Rings Our versatile silicone rubber O-rings serve critical sealing roles across automotive systems, thanks to their IATF16949 certification and multi-functional design:
Automotive Engine Systems: Silicone/NBR silicone rubber O-rings seal valve covers, oil pans, and fuel injectors—their high-temperature and oil resistance prevent fluid leaks, optimizing engine performance and reducing emissions. Automotive Cooling & HVAC Systems: EPDM silicone rubber O-rings seal radiator hoses, heater cores, and air conditioning compressors—their weather and coolant resistance withstands temperature fluctuations and environmental exposure. Automotive Chassis & Suspension: NR/EPDM silicone rubber O-rings seal suspension bushings and steering system components—their elasticity and durability absorb road vibration, enhancing ride comfort and component lifespan. Automotive Electrical Systems: Silicone silicone rubber O-rings seal battery enclosures and wiring harness connectors—their insulation properties and high-temperature resistance protect sensitive electronics in the engine bay. Automotive Fuel Systems: NBR silicone rubber O-rings seal fuel pumps, fuel lines, and fuel tank fittings—their oil/fuel resistance prevents leaks, ensuring compliance with automotive safety standards for fuel system components.
At our Dongguan manufacturing facility, we leverage advanced moulding technology and a skilled workforce (100+ professionals) to produce silicone rubber O-rings that exceed automotive industry performance standards. Our commitment to sustainability (ISO 14001 certified) ensures eco-friendly production practices without compromising durability or precision. We back all silicone rubber O-rings with a 3-year performance warranty: if our O-rings fail due to manufacturing defects within this period, we provide free replacements. Whether you need IATF16949-certified silicone O-rings for engine systems or custom NBR O-rings for fuel components, we deliver silicone rubber O-rings that combine compliance, performance, and reliability—engineered for automobiles, built to seal.
Product Description
Company Profile
Founded in 2003, Dongguan Huangshi Rubber & Plastic Tech Co., Ltd. is one of the famous silicone and plastic products manufacturers. Our factory is located in Chang'an Town, Dongguan City, enjoying good location and convenient transportation access. Being specialized in silicon mold making,plastic mold making and silicon and plastic products manufacturing, we always try our best to provide you with best-quality products. With a workshop of 6,000 square meters and a serious QC department, we are professional in making all kinds of silicone and plastic cases for cells phones, MP3, MP4 and MP5 players, silicone keyboards, silicone series parts of electronic goods, silicone kitchen accessories and silicone toys. We are sure to make better quality and better price silicone rubber and plastic products for you. Our main foreign trade markets include Southeast Asia, Europe and America. We also provide ODM/OEM products for many national famous companies. In order to satisfy different requirements from our clients, we import raw materials and machines to make our goods reach the standards of RoHS, ISO, SGS and EN71. "Do a good job at first time; do a better job every time" is our tenet. Please don't hesitate to contact us if you have any problem. We must be the one which you can trust in. We look forward to your requirements. Choose us,and we can do better for you!