Are you in the market for high-quality o-rings but feeling overwhelmed by the options? Choosing the right supplier can make all the difference in your project’s success. With countless factories in China, comparing the top o-ring suppliers is essential to ensure you get the best quality and value. Imagine the peace of mind that comes from knowing you’ve selected a reliable partner who meets your needs. Ready to discover the leading o-ring suppliers and make an informed choice? Let’s dive in and explore the top contenders that can elevate your projects to new heights!

Top 10 O-ring Manufacturers and Suppliers in China 2023 – Hongju

Product Details: O-rings are circular cross-section sealants used to prevent leakage of liquids and gases. They can be manufactured from various materials including nitrile rubber, silicone, EPDM rubber, and Fluorocarbon (Viton).

Technical Parameters:
– Available in standard and metric sizes
– Customizable materials including silicone, EPDM, nitrile rubber, and Viton

Application Scenarios:
– Used in automotive and aerospace industries
– Applicable in medical equipment and construction

Pros:
– Wide range of products available
– Customization options for specific needs

Cons:
– Potential limitations in material availability
– Quality may vary between manufacturers

O-Rings, Rubber Seals – Best China Manufacturer & Supplier – Savvy

Product Details: O-rings are circular cross-section rubber sealing rings used to seal various fluids (air, water, oil). Savvy Rubber manufactures standard and custom o-rings in various materials, including NBR, FKM (Viton), Silicone, EPDM, HNBR, CR, Aflas, FFKM, FVMQ, PTFE, Nylon, and PU. They offer encapsulated o-rings, backup rings, and x-rings. Sizes are specified by ID, OD, and CS, following various international standards (AS568, BS1516, DIN 3771, JIS B 2401, ISO 3601, GB 3452.1). Hardness is measured in Shore A (40-90). Colors are customizable, but standard colors are recommended for cost-effectiveness.

Technical Parameters:
– ID (Inside Diameter), OD (Outside Diameter), CS (Cross-section/Width), Shore A H…

Application Scenarios:
– Hydraulic and pneumatic transmission systems
– Static sealing of mechanical parts to prevent leakage of liquid and gaseous medi…
– Axial dynamic sealing of reciprocating and low-speed rotating motion (in some ca…

Pros:
– Simple structure, small size, compact installation
– Self-sealing effect, no need for periodic adjustment
– Static seal can achieve zero leakage
– Strong adaptability, wide application
– Low price

Cons:
– Large starting friction resistance when used for compression sealing
– Prone to accidents like cutting, twisting, and breaking if used improperly
– Difficult to achieve zero leakage of dynamic seals; leakage amount can only be c…
– May require protective backup ring, dust ring, and lubricating accessories in so…

Rubber O Ring Manufacturers – Ningbo Kaxite Sealing Materials Co., Ltd.

Product Details: Rubber O Rings are sealing devices made from various elastomers, designed to provide a tight seal in various applications.

Technical Parameters:
– Temperature range: -40°C to +200°C (for silicone)
– Resistance to petroleum base oils and hydrocarbon fuels (for Nitrile)

Application Scenarios:
– Used in precision sealing applications where exact size o-rings are unavailable.
– Commonly used in automotive, aerospace, and industrial applications.

Pros:
– Excellent flexibility and compressibility.
– High resistance to various chemicals and temperatures.

Cons:
– Low temperature resistance may be limited for some materials.
– Certain materials may not be suitable for static applications.

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

Product Details: O-rings are circular cross-section sealants used to prevent leakage of liquids or gases in various applications.

Technical Parameters:
– Common materials include NBR, FKM, Silicone, EPDM, and HNBR.
– Temperature range typically from -60°C to +260°C.

Application Scenarios:
– Used in automotive and aerospace industries for sealing applications.
– Applicable in both static and dynamic environments.

Pros:
– Versatile and customizable for specific needs.
– Effective sealing capability for various applications.

Cons:
– Minimum order quantities may vary and can be high for some manufacturers.
– Quality can vary between manufacturers, requiring careful selection.

Top 10 Viton O-ring Manufacturers and Suppliers in China(2025)

Product Details: Viton O-rings are highly durable synthetic rubber O-rings designed to withstand extreme environments, including high pressure and temperatures, and resistant to flame, chemicals, oils, and fluids. They are available in standard and custom sizes.

Technical Parameters:
– High pressure tolerance
– High temperature tolerance
– Chemical resistance
– Flame resistance

Application Scenarios:
– Mechanical
– Automotive
– Electrical
– Pharmaceutical
– Medical
– Aerospace
– Chemical processing
– Petroleum

Pros:
– Low MOQ
– Customization capabilities
– Free samples (for Hongju Silicone)
– Quick delivery (for Hongju Silicone)
– Affordable price (for Hongju Silicone)
– Variety of materials
– Latest technology
– Excellent product catalog
– RoHS & SGS certified (for some manufacturers)
– NSF, CIT & RoHS certified (for Trisun)
– ISO 9001 certified (for Woma)
– Same day shipping (for Tisun Seals)
– Durable products
– Competitive price
– Experienced manufacturers
– Latest equipment
– High-quality products

Cons:
– Generic placeholder
– Generic placeholder

China O Ring Manufacturers, Suppliers, Factory – Custom O Ring …

Product Details: O-rings are circular mechanical gaskets used to create leak-free seals between two components. They come in various materials (Neoprene, Silicone, Viton, Nitrile, EPDM, Polyurethane, PTFE, Fluorosilicone, CSM), sizes (including metric and imperial), and profiles (round, square, rectangular). Custom O-rings are available.

Technical Parameters:
– Inner diameter (ID), cross-sectional (CS) diameter, hardness, durability, shape
– Temperature resistance, chemical compatibility

Application Scenarios:
– Transportation (automobiles, buses, trucks)
– Aerospace
– Medical
– Oil and Gas
– Electronics
– Food
– Dentistry
– Scuba Diving
– Plumbing

Pros:
– Easy to manufacture and inexpensive
– Simple mounting requirements
– Reliable sealing

Cons:
– Susceptible to damage from chemicals, UV light, heat, and abrasion
– Can experience extrusion, swelling, and thermal degradation

O Ring China, O-Ring Supplier in China, Custom O-Ring Solutions

Product Details: O-Rings manufactured by Suzhou Baoshida Rubber, focusing on quality and customization for various industries.

Technical Parameters:
– Adherence to ISO 3601 standards
– Customization options available

Application Scenarios:
– Automotive sealing solutions
– Aerospace components

Pros:
– High-quality manufacturing processes
– Competitive pricing and customization capabilities

Cons:
– Potential communication barriers
– Lead times may vary based on customization

China O-Rings, X-Rings, Back Up Rings Suppliers and Manufacturers …

Product Details: Xiamen Seals Technology offers a variety of sealing solutions including O-Rings, X-Rings, Back Up Rings, and Custom Rubber Parts, suitable for various industries such as automotive, medical, and food & drug equipment.

Technical Parameters:
– Materials: NBR, EPDM, Silicone, FKM, etc.
– Sizes: Standard and metric sizes available

Application Scenarios:
– Automotive sealing applications
– Medical equipment sealing

Pros:
– Wide range of sealing products available
– Custom design options based on specifications

Cons:
– Limited information on specific technical specifications
– Potentially high minimum order quantities for custom parts

China EPDM O Ring manufacturers, EPDM O Ring suppliers, EPDM O Ring …

Product Details: EPDM O Ring manufactured by Boman, a professional manufacturer & supplier, meeting international industry standards and customization needs.

Technical Parameters:
– Material: EPDM
– Certification: International industry standard

Application Scenarios:
– Automotive applications
– Industrial machinery sealing

Pros:
– High quality and durability
– Customizable to meet specific needs

Cons:
– Limited information on specific sizes
– Potentially higher cost compared to standard options

China Standard O Ring for automotive manufacturers, Standard O Ring for …

Product Details: Standard O-Ring for automotive applications. Available in AS568 standard. Customizable options available.

Technical Parameters:
– AS568 standard
– various sizes (implied)

Application Scenarios:
– automotive manufacturing
– automotive supply chain

Pros:
– Wide range of options
– Customizable

Cons:
– No specific cons mentioned

Related Video

Comparison Table

Company	Product Details	Pros	Cons	Website
Top 10 O-ring Manufacturers and Suppliers in China 2023 – Hongju	O-rings are circular cross-section sealants used to prevent leakage of liquids and gases. They can be manufactured from various materials including ni…	– Wide range of products available – Customization options for specific needs	– Potential limitations in material availability – Quality may vary between manufacturers	hongjusilicone.com
O-Rings, Rubber Seals – Best China Manufacturer & Supplier – Savvy	O-rings are circular cross-section rubber sealing rings used to seal various fluids (air, water, oil). Savvy Rubber manufactures standard and custom o…	– Simple structure, small size, compact installation – Self-sealing effect, no need for periodic adjustment – Static seal can achieve zero leakage – S…	– Large starting friction resistance when used for compression sealing – Prone to accidents like cutting, twisting, and breaking if used improperly -…	savvyrubber.com
Rubber O Ring Manufacturers – Ningbo Kaxite Sealing Materials Co., Ltd.	Rubber O Rings are sealing devices made from various elastomers, designed to provide a tight seal in various applications.	– Excellent flexibility and compressibility. – High resistance to various chemicals and temperatures.	– Low temperature resistance may be limited for some materials. – Certain materials may not be suitable for static applications.	www.seal-china.com
Top 10 O-Ring Manufacturers and Suppliers in China (2024)	O-rings are circular cross-section sealants used to prevent leakage of liquids or gases in various applications.	– Versatile and customizable for specific needs. – Effective sealing capability for various applications.	– Minimum order quantities may vary and can be high for some manufacturers. – Quality can vary between manufacturers, requiring careful selection.	www.rubber-tools.com
Top 10 Viton O-ring Manufacturers and Suppliers in China(2025)	Viton O-rings are highly durable synthetic rubber O-rings designed to withstand extreme environments, including high pressure and temperatures, and re…	– Low MOQ – Customization capabilities – Free samples (for Hongju Silicone) – Quick delivery (for Hongju Silicone) – Affordable price (for Hongju Sili…	– Generic placeholder – Generic placeholder	hongjusilicone.com
China O Ring Manufacturers, Suppliers, Factory – Custom O Ring …	O-rings are circular mechanical gaskets used to create leak-free seals between two components. They come in various materials (Neoprene, Silicone, Vi…	– Easy to manufacture and inexpensive – Simple mounting requirements – Reliable sealing	– Susceptible to damage from chemicals, UV light, heat, and abrasion – Can experience extrusion, swelling, and thermal degradation	www.chaoyuerubber.com
O Ring China, O-Ring Supplier in China, Custom O-Ring Solutions	O-Rings manufactured by Suzhou Baoshida Rubber, focusing on quality and customization for various industries.	– High-quality manufacturing processes – Competitive pricing and customization capabilities	– Potential communication barriers – Lead times may vary based on customization	www.rubber-tools.com
China O-Rings, X-Rings, Back Up Rings Suppliers and Manufacturers …	Xiamen Seals Technology offers a variety of sealing solutions including O-Rings, X-Rings, Back Up Rings, and Custom Rubber Parts, suitable for various…	– Wide range of sealing products available – Custom design options based on specifications	– Limited information on specific technical specifications – Potentially high minimum order quantities for custom parts	www.sealsmanufacturer.com
China EPDM O Ring manufacturers, EPDM O Ring suppliers, EPDM O Ring …	EPDM O Ring manufactured by Boman, a professional manufacturer & supplier, meeting international industry standards and customization needs.	– High quality and durability – Customizable to meet specific needs	– Limited information on specific sizes – Potentially higher cost compared to standard options	www.bomanindustry.com
China Standard O Ring for automotive manufacturers, Standard O Ring for …	Standard O-Ring for automotive applications. Available in AS568 standard. Customizable options available.	– Wide range of options – Customizable	– No specific cons mentioned	www.bomanindustry.com

Frequently Asked Questions (FAQs)

1. How can I find a reliable o-ring supplier factory in China?

Finding a reliable supplier takes research! Start by using online directories specializing in manufacturing, checking for certifications like ISO 9001, and reading independent reviews. Consider requesting samples and conducting thorough quality checks before committing to a large order. Visiting the factory, if possible, is a great way to assess their capabilities and operations firsthand.

2. What types of o-rings do Chinese factories typically produce?

Chinese factories produce a vast range of o-rings, catering to diverse industries. You’ll find o-rings made from various materials like nitrile, silicone, Viton, and EPDM, in a wide array of sizes and specifications. Many factories can also customize o-rings to meet your specific needs and tolerances.

3. What are the typical lead times for o-ring orders from China?

Lead times vary depending on the order size, material availability, and the factory’s current workload. Generally, expect lead times ranging from a few weeks to several months for larger or more specialized orders. It’s always best to discuss lead times with your potential supplier early in the process to avoid delays.

4. What are the common payment methods used with Chinese o-ring suppliers?

Common payment methods include wire transfers (TT), Letters of Credit (LC), and sometimes PayPal for smaller orders. Always clarify payment terms and conditions with your supplier beforehand. Negotiating favorable payment terms can be part of the overall business deal.

5. How can I ensure the quality of o-rings from a Chinese supplier?

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lity control is crucial. Request detailed material certifications and quality inspection reports. Consider ordering a small trial batch to test the quality before placing a larger order. Clearly define your quality standards and acceptance criteria in your contract to minimize misunderstandings and potential issues.