Top 10 Silicone O-Ring Manufacturers and Suppliers in China(2024)

Are you looking for a trustworthy silicone O-ring manufacturer to collaborate with? We have got you covered. In this blog post, we have shortlisted and reviewed top O-ring manufacturers that can assist you with your requirements. Let's take a look at these companies.

Table of Contents

What is a Silicone O-Ring?

Silicone O-ring is an ideal seal material for outdoor applications with excellent resistance to high temperature, high pressure, and other harsh elements. Compared to other elastomer materials, silicone has better weathering and insulating properties.

viton o rings
o rings

Overview of Silicone O-Ring Manufacturers and Suppliers in China

Company Summaries

The summaries will help you determine which company is the right fit for your requirements.

PositionCompany NameYear EstablishedLocation (City)Employ size
1Hongju Silicone1999Dongguan50-100
3KN Rubber 1994Tieling50-100 
4Hongjie Sealing 2001Shenzhen 300
5Seal Smart2005Shanghai 10-50 
6Xiaori 2014Liuzhou100
7BBS Limited 2001Shenzhen 300
8QL Rubber 2000Haining100-150 
9DZR Seal Factory 1998Taizhou100-200 
10Ruichen Sealing 2006Dongguan200

#1. Dongguan Hongju Silicone Rubber Products Co., Ltd.

Dongguan Hongju Silicone Rubber Products Co., Ltd.

Hongju Silicone is an industry leader when it comes to silicone rubber products. The company has over two decades of experience and established an impressive clientele worldwide with quality service. They use certified O-ring material and are well-equipped to manufacture custom O-rings to meet your requirements.

Hongju Silicone manufactures O-rings for multiple industries suitable to be used with both static and dynamic applications. They have versatile stock for standard o rings and can also provide you with free samples for testing.

The company is committed to producing eco-friendly and durable products that give optimal performance for the intended application. Hence, it is an ideal place to get a wide range of O-rings and sealing products.

Products and Services

  • Silicone O-Rings
  • Rubber O-Rings
  • Viton O-Rings
  • Food Grade O-Rings
  • Gasket and Seals
  • Custom O-Rings & Seals


  • Fast Delivery
  • Low MOQ
  • Customization Capabilities
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#2. Savvy Rubber & Plastics Co., Ltd.

Savvy Rubber & Plastics Co., Ltd.

Savvy is one of the top manufacturers of O-rings, oil seals, and custom rubber components in China. The company offers a wide selection of common and specialty materials for production. They can manufacture in all three O-ring sizes: inner diameter, outside diameter, and cross-sectional diameter.

Savvy’s product catalog includes diverse O-ring types that can be used with various static and dynamic applications. Most importantly, all the products meet FDA, RoHS, and Reach standards. Thus, you can trust them with closed eyes.

The company also offers after-sales service to assist customers with their problems and ensure a pleasing experience.

Products and Services

  • Standard O-rings
  • EPDM O-Rings
  • X-Rings
  • Square Rings
  • Silicone Rings
  • O-Ring Cord
  • Back-Up Ring
  • Encapsulated O-Ring
  • Other Seals and Rings


  • ISO 9001 Certified
  • Modern Equipment
  • Extensive Product Catalog

#3. Tieling Kangning Rubber Products Co., Ltd.

Tieling Kangning Rubber Products Co., Ltd.

KN Rubber is a leading O-ring manufacturer and supplier of rubber and plastic products in China. They have highly skilled workers and strictly implement best practices to produce international standard products.

The company has strong R&D capabilities and a rigorous quality testing system that ensures products meet clients’ requirements. They provide an extensive range of products with specialized formulas to meet oil, temperature, chemical, and acid resistance needs.

KN Rubber prioritizes its customers and strives to provide them with tailored solutions for their needs.

Products and Services

  • Silicone O-Rings
  • Rubber O-Rings
  • Y-Rings
  • Nitrile Rubber Rings
  • Pneumatic Seals
  • Other Products


  • After-Sales Service
  • Technical Support
  • High-Quality O-Rings

#4.  Hongjie Sealing Technology Co., Ltd

Hongjie Sealing Technology Co., Ltd

Hongjie Sealing Technology is another reputable designer and manufacturer of rubber components. They use various methods for production, including die cutting, injection molding, compression molding, etc.

The state-of-the-art factory covers an area of 11,000 sq. meters. It has all the modern machinery to produce a wide selection of industrial rubber products. The company is committed to fulfilling customers’ needs by offering satisfactory service and quality products at a reasonable price.

They manufacture O-rings with excellent chemical compatibility and a high-temperature range for longer service life.

Products and Services

  • Rubber O-Rings
  • O-Ring Kits
  • O-Ring Seals
  • Silicone Rubber O-Rings
  • Hydraulic Seals
  • Sealing O-Ring
  • Oil Seal
  • Other Products


  • Experienced
  • Competitive Price
  • Excellent Service

#5. Xumai Rubber Industry

Xumai Rubber Industry

SealsSmart, with 15 years of manufacturing experience, is another credible company that can provide you with high-quality O-rings. They have all the advanced production and testing equipment for producing the highest standard products.

Surprisingly, SealsSmart provides around 1,000 specifications of O-rings. Whether you need mil-spec or non-standard O-rings, the company has everything for you. Since the products have passed FDA and SGS tests, you can trust them with closed eyes.

Products and Services

  • Silicone O-Rings
  • FKM O-Rings
  • Buna-N O-Rings
  • EPDM O-Rings
  • X-Rings
  • V-Seals
  • Other Custom Products


  • Non-Toxic Products
  • FDA & SGS Certified
  • Equipment

#6. Liuzhou Xiaori Mechanical Equipment Co., Ltd.

Liuzhou Xiaori Machanical Equipment Co., Ltd.

Xiaori was formed to promote quality manufacturing, production agility, and excellence. The company has been in business since 2014 and has established a credible market for its product in various countries and regions.

They have comprehensive knowledge of different rubber and silicone materials. With modern workshops and skilled professionals, they can easily produce products to meet the specific demands of each country.

From special packaging to other comprehensive range of solutions, Xiaori is the perfect company for your O-ring and sealing needs.

Products and Services

  • Viton O-Ring
  • Silicone Rubber O-Ring
  • PTFE O-Ring
  • EPDM O-Ring
  • O-Ring Kit
  • Nitrile O-Ring
  • Neoprene O Ring
  • Other O-Ring and Sealing Products


  • Skilled Team
  • Quality Service
  • Extensive Knowledge

#7. Better Bright Silicone Rubber & Plastic Mould Products Limited

Better Bright Silicone Rubber & Plastic Mould Products Limited

BBS is a high-tech supplier and manufacturer of rubber silicone and plastic products in China. They have diverse capabilities and are well-equipped to offer both OEM & ODM services. With more than 20 years in the industry, the company has significantly improved since its establishment.

From product design and prototyping to customization services, BBS is determined to provide its customers with the best experience. The company primarily serves businesses in Europe and the US. So if you belong to any of these regions, BBS is your best bet for getting the highest quality O-rings.

Products and Services

  • Silicone Rings
  • Rubber O Rings
  • Metric O rings
  • Food Grade O-Rings
  • Custom Silicone & Rubber Parts
  • Molded Plastic Parts
  • Other Custom Molded Products


  • Modern Factory
  • Latest Technology
  • Great Service

#8. Haining Qianlang Rubber Products Factory

Haining Qianlang Rubber Products Factory

Qianlang is a leading manufacturer of rubber products in China with over two decades of experience. The company produces products with all kinds of materials to cater to customers’ specific demands. From standard products to custom parts, they provide curated solutions to all.

Qianlang has an extensive product catalog, and with advanced equipment, you can expect a quick turnaround. All the products meet international standards and can withstand the most extreme environments. Overall, it is a great place to get high-quality products cheaply.

Products and Services

  • Quad Rings
  • V-Rings
  • O-Ring Seals
  • Basic Seals
  • Rubber Gaskets & Washers
  • O-Ring Cord
  • Oil Seal
  • Other Products


  • Affordable
  • Fast Production
  • Full Range of Materials

#9. Xianju Dazhong Rubber Seal Factory

Xianju Dazhong Rubber Seal Factory

As the name suggests, DZR Seal Factory specializes in manufacturing all kinds of seals. They have 20+ years of experience in the industry and are a reliable company for getting premium quality products.

They use a wide range of raw materials for production, allowing them to cater to clients’ specialized requirements. The products are backed by a strong technical force and a quality management system, which suggest they meet international standards.

Most importantly, they have acquired certifications like FDA, PAHS, REACH, and RoHS for their products. DZR Seal Factory is committed to helping customers with all their needs and providing them with cost-effective solutions.

Products and Services

  • O-Ring Kits
  • Rubber O-Rings
  • Silicone O-Rings
  • Oil Seal
  • Rubber Gasket
  • Other Products


  • Variety in Raw Materials
  • Internationally Authorized Certifications

#10. Dongguan Ruichen Sealing Co., Ltd.

Dongguan Ruichen Sealing Co., Ltd.

Ruichen Sealing is a credible and reputable manufacturer and supplier of O-rings in China. They assist customers with mold development, shortening the development cycle and reducing failure chances.

The company’s skilled and professional workforce ensures clients receive only the best-quality O-rings. They can manufacture O-rings in both standard and metric sizes. Ruichen uses only quality raw materials for O-rings to prevent leakage pressure and critical torque under high pressure.

The company also offers after-sales services to help customers with their queries. Whatever your requirements are, contact Ruichen for the best experience.

Products and Services

  • EPDM O-Rings
  • Silicone O-Rings
  • O-Ring Seals
  • Viton O-rings
  • Rubber Molded Parts


  • Experienced
  • Equipment
  • Certified Supplier

3 Benefits of Importing Silicone O-Rings from China

China has a competitive market for every industry, so it has become a world trading hub. If you are considering importing from China, here are some reasons you are doing the right thing.

Cost-Effective Production

The production cost of any product reduces significantly when imported from China. Most Chinese manufacturers make raw materials in their factories and have huge stocks. In addition, the labor is also much cheaper than in European countries, and each factory employs hundreds of skilled individuals. This means that you get the highest quality products at a reasonable price.

Customization Capabilities

Another major advantage of importing from China is the diverse customization capabilities of Chinese companies. Our list of manufacturers can produce custom O-rings to meet your requirements. They have a wide selection of O-ring materials and know all O-ring sizes. Whatever your requirements are, they will produce products with the exact specifications.

High-Profit Margin

High profitability is a primary factor that attracts businesses worldwide to import from China. The affordable production, labor, and reduced fees on duties increase your profit margin. If you purchase O-rings in bulk from Chinese manufacturers, you can sell them at a 5x price or even more. With better profitability, the chances of your business growth also improve.

Looking for a Silicone O-Ring? Hongju Silicone Can Help You

Hongju Silicone is an ideal company for you if you need quality O-rings. In addition to silicone, we offer a great variety of O-ring materials and can meet your specific demands. Whatever size, shape, and style of O-rings you need, we are the company to get optimal solutions.

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Hey there, I’m David!

I’m the founder of Hongju Silicone. I have been in this field for more than two decades. If you are looking for custom-made silicone rubber products, feel free to ask me any questions.

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