Based in Dongguan, Guangdong—China’s premier hub for industrial sealing component manufacturing—HS specializes in high quality silicone O-rings, engineered with industrial-standard waterproof and leak-proof capabilities to deliver elastic, durable sealing solutions for multi-function industrial applications. Our OR-C-02 silicone O ring is precision-crafted via moulding to meet the stringent performance standards of global industries, combining material versatility, full customization, and robust durability to provide reliable rubber sealing solutions for manufacturers worldwide. Whether you require standard silicone O-rings for general industrial use or bespoke custom-shaped seals for specialized equipment, our factory-direct capabilities ensure consistent quality, on-time delivery, and cost-effective solutions tailored to your sealing needs.
Core Features of Our Silicone O-Rings Our silicone O-rings and silicone O ring stand out for their industrial-grade durability, elastic performance, and waterproof/leak-proof capabilities—key traits that make them ideal for multi-function sealing applications across industries.First, the material quality of our silicone O-rings is unmatched. We utilize premium silicone that delivers exceptional elasticity (20~80 Shore hardness adjustable) and resistance to temperature extremes (-40°C to 220°C), ensuring silicone O rings maintain their shape and sealing integrity even under high pressure and thermal stress. This silicone formulation also provides industrial-standard waterproof and leak-proof performance, preventing fluid and air leakage in critical industrial systems.Second, full customization defines our silicone O-rings. We offer custom sizes, custom thickness, custom shapes, and customer-requested colors to fit any industrial equipment component, from micro-sized seals for precision machinery to large-diameter silicone O rings for heavy-duty industrial systems. Our moulding process achieves a tolerance of ±0.05mm, ensuring silicone O-rings create precise, airtight seals that meet industrial sealing requirements.Third, longevity is embedded in every silicone O-ring we produce. The robust silicone composition resists wear, tear, and chemical degradation, extending the service life of seals and reducing maintenance costs for industrial equipment operators—even in harsh operating environments.
Competitive Advantages of Our Silicone O-Rings Choosing our silicone O-rings and silicone O ring means partnering with a manufacturer with 20+ years of silicone processing expertise, prioritizing quality, efficiency, and customer-centric service for industrial sealing applications. Flexible Customization & OEM/ODM Support We accept OEM/ODM orders for silicone O-rings, collaborating closely with clients to refine hardness (20~80 Shore), thickness, and shape to match unique industrial sealing needs. With a MOQ of 500 pieces, our solutions are accessible to small and medium-sized manufacturers, while our advanced moulding equipment enables rapid prototyping of custom silicone O rings to accelerate product development timelines. Rigorous Quality Control & Performance Testing Every silicone O-ring undergoes 100% quality inspection before shipment, including dimensional verification, elasticity testing, and waterproof/leak-proof validation—ensuring zero defects and consistent performance across every batch of silicone O rings. Our strict quality processes ensure seals meet industrial standards for durability and sealing reliability, eliminating costly equipment downtime caused by failed seals. Cost-Effective Factory-Direct Pricing As a direct manufacturer with a 10,000-square-meter production facility and 2000+ existing molds, we eliminate middleman markups, offering competitive pricing on silicone O-rings without compromising material quality or industrial performance. Our scalable production capabilities reduce per-unit costs for bulk orders, making high-quality silicone O rings accessible to businesses of all sizes. Technical Expertise & 24/7 Support Our team of industrial rubber engineering specialists provides 7×24 online support for all inquiries related to silicone O-rings, offering guidance on material selection, hardness adjustment, and seal design optimization for multi-function industrial applications. We leverage deep industry knowledge to solve complex sealing challenges, ensuring silicone O rings deliver optimal waterproof and leak-proof performance in your equipment.
Applications of Our Silicone O-Rings Our versatile silicone O-rings and silicone O ring serve critical sealing roles across industrial sectors, thanks to their waterproof/leak-proof capabilities, elasticity, and durable performance:
Hydraulic & Pneumatic Systems: Silicone O-rings seal hydraulic cylinders and pneumatic valves—their elastic performance (20~80 Shore) and leak-proof design prevent oil/air leakage, optimizing the efficiency of industrial fluid power systems. Food & Beverage Processing: Food-grade silicone O rings seal processing equipment, packaging machinery, and storage tanks—their waterproof performance and non-toxic composition comply with food safety standards, preventing contamination in production lines. Electrical & Electronic Enclosures: Silicone O-rings seal control panels, battery housings, and sensor enclosures—their waterproof and insulating properties protect sensitive electrical components from moisture and dust in industrial environments. Chemical Processing Equipment: Chemical-resistant silicone O rings seal pumps, reactors, and pipelines—their durable composition withstands exposure to corrosive chemicals, ensuring leak-proof operation in hazardous processing environments. Automotive Manufacturing Equipment: Custom-shaped silicone O-rings seal assembly line machinery and tooling—their elasticity and waterproof performance withstand the vibration and moisture of automotive production facilities, reducing unplanned downtime.
At our Dongguan manufacturing facility, we leverage a team of over 100 skilled professionals and state-of-the-art moulding equipment to produce silicone O-rings that exceed industrial standards. Our commitment to quality is backed by ISO 9001 and ISO 14001 certifications, validating the reliability and sustainability of our silicone O rings for international markets. We back all silicone O-rings with a 3-year warranty: if unused silicone O rings develop quality issues within this period, we offer free returns and replacements. Whether you need high quality silicone O-rings for general industrial use or custom sealing solutions for specialized equipment, we are committed to delivering silicone O-rings that combine performance, durability, and value—engineered for industry, 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!