Are you searching for the best O-ring manufacturers in China? Understanding the top factories is crucial for ensuring quality and reliability in your projects. By knowing your options, you can save time and money while securing the best products. Dive in to discover the leading factories that can meet your needs!
Custom Rubber Seals & O-rings Manufacturer | Haisun Rubber
Product Details: HAISUN manufactures precision O-rings such as NBR, HNBR, AMQ, FKMT, EDPM, ACM, and CR, and supplies standard O-ring parts and O-ring kits.
Technical Parameters:
– O-ring dimension accuracy tolerance up to 0.01mm
– Rubber seals accuracy tolerance up to 0.02mm
Application Scenarios:
– Used in smartphones, watches, automotive parts, medical devices, food machinery,…
– Suitable for rotary shafts to prevent contaminants from entering
Pros:
– High precision and quality control
– Wide range of applications across various industries
Cons:
– Limited information on specific material properties
– Potentially higher cost for custom solutions
O-Rings, Rubber Seals – Best China Manufacturer & Supplier – Savvy
Product Details: High-quality rubber O-rings manufactured by Savvy, available in various sizes and materials, including NBR, FKM, and Silicone.
Technical Parameters:
– Sizes: ID, OD, CS
– Hardness: Shore A 50-90
Application Scenarios:
– Hydraulic systems
– Pneumatic transmission systems
Pros:
– Cost-effective and easy to produce
– Versatile and reliable sealing solutions
Cons:
– Prolonged compression can cause permanent deformation
– Extreme temperatures may degrade performance
High-quality O-rings By Haisun | Custom & Standard Parts
Product Details: O-rings
Technical Parameters:
– Material standards: Reach, RoHS, FDA, PAHS
– Tolerance: ±0.02mm
Application Scenarios:
– Manufacturing various oil resistant products
– Automotive parts and household appliances
Pros:
– Heat resistance
– Oil resistance
Cons:
– Poor cold and ozone resistance
– High price for some materials
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 are manufactured using various techniques such as injection, extrusion, and compression molding, with materials like nitrile rubber, silicone, EPDM rubber, and Fluorocarbon.
Technical Parameters:
– Available in standard and metric sizes
– Customizable materials including silicone, EPDM, nitrile rubber, and Viton
Application Scenarios:
– Automotive industry for power steering gears
– Aerospace and medical equipment for sealing applications
Pros:
– Wide range of products and customization options
– Good customer service and fast delivery
Cons:
– Minimum order quantities may apply for some manufacturers
– Quality may vary between different manufacturers
Top 60 O-Ring Suppliers in China (2025) | ensun
Product Details: O-Rings manufactured by various suppliers in China, including specialized rubber sealing solutions.
Technical Parameters:
– Material: EPDM, NBR, Fluorosilicone
– Temperature resistance: Wide operational range
Application Scenarios:
– Automotive sealing applications
– Aerospace machinery
Pros:
– High-quality manufacturing standards
– Wide variety of sizes and materials available
Cons:
– Potential fluctuations in raw material prices
– Compliance with international standards may vary
O Rings, Gasket Rings, Sealing Ring Suppliers, Manufacturers, Factory …
Product Details: O Rings, Gasket Rings, Sealing Rings, Custom Rubber Parts, Rubber Bellows, Rubber Waterproof Rings, PTFE Seals
Technical Parameters:
– Material: Nitrile, Silicone, PTFE
– Hardness: Various durometers available
Application Scenarios:
– Automotive sealing applications
– Industrial machinery
Pros:
– Cost-effective sealing solutions
– Wide range of products available
Cons:
– Limited information on specific product performance
– Potential variability in material quality
O-Rings Manufacturers and Suppliers China – O-Rings Factory – Qianlang
Product Details: O-Rings are rubber seals used in various applications to prevent leakage of fluids or gases. They are available in different materials such as FFKM, PTFE, Neoprene, HNBR, Polyurethane, FVMQ, EPDM, and NBR.
Technical Parameters:
– High temperature resistance
– Excellent chemical resistance
Application Scenarios:
– Automotive industry
– Industrial machinery
Pros:
– Durable and long-lasting
– Wide range of chemical compatibility
Cons:
– Not suitable for all temperature ranges
– May require specific installation techniques
Quality FKM O Rings & NBR O Ring factory from China
Product Details: Quality FKM O Rings & NBR O Ring factory from China. Various types of O rings including FKM, NBR, Silicone, and custom rubber parts.
Technical Parameters:
– Material: NBR / Nitrile Rubber, FKM, Silicone
– Hardness: 30-80 Shore A, 70±5 Shore
Application Scenarios:
– Used in hydraulic and pneumatic systems to prevent leaks.
– Applicable in automotive, aerospace, oil and gas, and medical industries.
Pros:
– Versatile sealing solutions with a wide range of materials.
– Easy installation and replacement.
Cons:
– Requires regular inspection for wear and damage.
– Performance may vary based on material selection.
China O Rings Manufacturers and Suppliers – Customized O Rings Factory …
Product Details: O Rings are sealing devices used in various applications to prevent leakage of fluids or gases. They are available in different materials such as NBR, FKM, EPDM, and silicone.
Technical Parameters:
– Size: As Custom Drawing or Sample
– Material: PU, Silicone Rubber, VMQ, NBR, EPDM, FKM, Nitrile Rubber
Application Scenarios:
– Used in automotive applications for sealing
– Applicable in hydraulic and pneumatic systems
Pros:
– Durable and resistant to various chemicals
– Customizable sizes and materials available
Cons:
– May require specific installation techniques
– Performance can vary based on material choice
China Rubber O Rings, Rubber Seal Ring, Rubber Gaskets Suppliers …
Product Details: Rubber O Rings, Rubber Seal Ring, Rubber Gaskets, Rubber Molded Parts, Rubber Hoses, Rubber Bonded Parts, Seal Kits, Rubber Extrusion Profiles, Rubber Sheet, PTFE Parts, Sponge Rubber Seal, Plastic Parts, Agricultural Irrigation.
Technical Parameters:
– ISO 9001 certified quality control
– Materials mixed as per ASTM D 2000
Application Scenarios:
– Industrial sealing applications
– Automotive components
Pros:
– High-quality manufacturing standards
– Wide range of rubber products available
Cons:
– Limited specific technical details provided
– No detailed application examples listed
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Comparison Table
| Company | Product Details | Pros | Cons | Website |
|---|---|---|---|---|
| Custom Rubber Seals & O-rings Manufacturer | Haisun Rubber | HAISUN manufactures precision O-rings such as NBR, HNBR, AMQ, FKMT, EDPM, ACM, and CR, and supplies standard O-ring parts and O-ring kits. | – High precision and quality control – Wide range of applications across various industries | – Limited information on specific material properties – Potentially higher cost for custom solutions |
| O-Rings, Rubber Seals – Best China Manufacturer & Supplier – Savvy | High-quality rubber O-rings manufactured by Savvy, available in various sizes and materials, including NBR, FKM, and Silicone. | – Cost-effective and easy to produce – Versatile and reliable sealing solutions | – Prolonged compression can cause permanent deformation – Extreme temperatures may degrade performance | savvyrubber.com |
| High-quality O-rings By Haisun | Custom & Standard Parts | O-rings | – Heat resistance – Oil resistance | – Poor cold and ozone resistance – High price for some materials |
| 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 are manufactured using various techniques such as injec… | – Wide range of products and customization options – Good customer service and fast delivery | – Minimum order quantities may apply for some manufacturers – Quality may vary between different manufacturers | hongjusilicone.com |
| Top 60 O-Ring Suppliers in China (2025) | ensun | O-Rings manufactured by various suppliers in China, including specialized rubber sealing solutions. | – High-quality manufacturing standards – Wide variety of sizes and materials available | – Potential fluctuations in raw material prices – Compliance with international standards may vary |
| O Rings, Gasket Rings, Sealing Ring Suppliers, Manufacturers, Factory … | O Rings, Gasket Rings, Sealing Rings, Custom Rubber Parts, Rubber Bellows, Rubber Waterproof Rings, PTFE Seals | – Cost-effective sealing solutions – Wide range of products available | – Limited information on specific product performance – Potential variability in material quality | www.yuefeng-seal.com |
| O-Rings Manufacturers and Suppliers China – O-Rings Factory – Qianlang | O-Rings are rubber seals used in various applications to prevent leakage of fluids or gases. They are available in different materials such as FFKM, P… | – Durable and long-lasting – Wide range of chemical compatibility | – Not suitable for all temperature ranges – May require specific installation techniques | www.qlrubber.com |
| Quality FKM O Rings & NBR O Ring factory from China | Quality FKM O Rings & NBR O Ring factory from China. Various types of O rings including FKM, NBR, Silicone, and custom rubber parts. | – Versatile sealing solutions with a wide range of materials. – Easy installation and replacement. | – Requires regular inspection for wear and damage. – Performance may vary based on material selection. | o-ringsseals.com |
| China O Rings Manufacturers and Suppliers – Customized O Rings Factory … | O Rings are sealing devices used in various applications to prevent leakage of fluids or gases. They are available in different materials such as NBR,… | – Durable and resistant to various chemicals – Customizable sizes and materials available | – May require specific installation techniques – Performance can vary based on material choice | www.svks-rubberseal.com |
| China Rubber O Rings, Rubber Seal Ring, Rubber Gaskets Suppliers … | Rubber O Rings, Rubber Seal Ring, Rubber Gaskets, Rubber Molded Parts, Rubber Hoses, Rubber Bonded Parts, Seal Kits, Rubber Extrusion Profiles, Rubber… | – High-quality manufacturing standards – Wide range of rubber products available | – Limited specific technical details provided – No detailed application examples listed | www.xmbestseal.com |
Frequently Asked Questions (FAQs)
What are O-rings and what are they used for?
O-rings are circular seals made from various materials, primarily rubber, that prevent the leakage of fluids and gases. They are commonly used in machinery, automotive applications, and plumbing to create a tight seal between two surfaces. Their versatility makes them essential in many industries.
Why should I consider sourcing O-rings from China?
Sourcing O-rings from China can be cost-effective due to lower manufacturing costs. Chinese factories often have advanced technology and experience in producing high-quality O-rings, allowing for bulk orders and customization to meet your specific needs.
How do I choose a reliable O-ring factory in China?
To choose a reliable factory, research their reputation, check customer reviews, and ask for samples of their products. It’s also helpful to verify their certifications and quality control processes to ensure they meet industry standards.
What materials are commonly used for O-rings?
O-rings can be made from various materials, including nitrile rubber, silicone, fluorocarbon, and neoprene. The choice of material depends on the application, temperature range, and chemical exposure, so it’s essential to select the right one for your needs.
What is the typical lead time for O-ring production in China?
The lead time for O-ring production in China can vary based on order size and complexity, but it generally ranges from 2 to 6 weeks. It’s a good idea to discuss timelines with the factory to ensure they can meet your delivery requirements.