Are you in the market for high-quality rubber O-rings but unsure where to start? With countless manufacturers in China, finding the right factory can feel overwhelming. Understanding the top players in this industry is crucial, as it can significantly impact your product’s performance and longevity. By comparing these leading manufacturers, you can ensure you’re choosing a partner that meets your quality standards and budget. Ready to discover the best options available? Dive into our comprehensive comparison and make an informed decision that will elevate your projects!

Top 10 O-ring Manufacturers and Suppliers in China (2024) – Hongju

Product Details: O-rings are circular cross-section sealants used to prevent leakage of liquids and gases. They are 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, NBR, and Viton

Application Scenarios:
– Automotive industry for power steering gears
– Aerospace and medical equipment for sealing applications

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

Cons:
– Minimum order quantities may apply for some manufacturers
– Quality may vary between different manufacturers

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

Product Details: High-Quality Rubber O-Rings manufactured by Savvy, available in various materials including NBR, FKM, and Silicone.

Technical Parameters:
– Temperature Range: -70°C to 220°C
– Standard Hardness: Shore A 60 to 90

Application Scenarios:
– Used in hydraulic and pneumatic transmission systems
– Suitable for sealing various fluids such as air, water, and oil

Pros:
– Low manufacturing cost and convenient use
– Self-sealing effect with no need for periodic adjustment

Cons:
– Difficult to achieve zero leakage in dynamic seals
– Improper use can lead to cutting, twisting, and breaking

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:
– Smartphones
– Automotive parts

Pros:
– High precision and quality control
– Wide range of materials available

Cons:
– Limited information on specific applications
– Potentially higher cost for custom solutions

Custom O-ring Manufacturer and Wholesale Supplier – Hongju

Product Details: Custom O-rings and high-temperature O-ring seals manufactured by Hongju, suitable for engines, pumps, cylinders, connectors, valves, etc.

Technical Parameters:
– Material: Silicone rubber
– Hardness tolerance: ±3-5A, following ISO3601 standards

Application Scenarios:
– Sealing for engines and pumps
– Static and dynamic applications in various machinery

Pros:
– High-quality materials and precision molds
– Fast tooling and manufacturing times

Cons:
– Limited information on specific material types
– Potential variability in shipping times based on location

Rubber Seals, Custom Rubber & Plastic Parts Manufacturer

Product Details: Professional Rubber Seals, O-Rings, Oil Seals, Custom Rubber Parts Manufacturer in China

Technical Parameters:
– Rich Industrial Manufacturing & Export Experience
– More than 20,000 Molds for Fast Delivery

Application Scenarios:
– Semiconductor, Solar, LCD
– Food, Water, Life Sciences

Pros:
– High-quality products with 100% customer satisfaction
– Fast delivery and massive production capacity

Cons:
– Limited information on specific product dimensions
– Potential variability in custom orders

China O Rings Manufacturers and Suppliers – Customized O Rings Factory …

Product Details: O Rings manufactured by Tianjin SWKS Technology & Development Co., Ltd, available in various materials including 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:
– Customizable sizes and materials
– Durable and resistant to various chemicals

Cons:
– Limited information on specific performance metrics
– Potentially higher cost for custom orders

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:
– Material: Rubber
– ISO 9001 certified

Application Scenarios:
– Automotive industry
– Industrial machinery

Pros:
– Durable and reliable sealing solutions
– Wide range of products available

Cons:
– Limited information on specific product dimensions
– Potential variability in material quality

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

Product Details: Rubber O Ring available in various materials including silicone, nitrile, and Viton, suitable for sealing applications.

Technical Parameters:
– Temperature range: -40°C to +200°C for silicone, -40°F to +250°F for nitrile, an…
– Excellent resistance to petroleum base oils, hydrocarbon fuels, and various chem…

Application Scenarios:
– Used in precision sealing applications where exact size o-rings are unavailable.
– Suitable for various industrial applications requiring reliable sealing.

Pros:
– High flexibility and excellent electrical insulation.
– Wide range of temperature resistance and chemical compatibility.

Cons:
– Low temperature resistance for some materials may limit applications.
– Specific adhesives may be required for bonding silicone cord.

Custom Rubber Seal O-Ring Manufacturers, Suppliers, Factory

Product Details: Rubber O-ring seals suitable for various mechanical equipment, providing sealing in static or moving states under specified conditions.

Technical Parameters:
– Temperature range: -60 ℃ to 220 ℃
– Pressure: up to 1500 Kg/cm2 with reinforcing ring

Application Scenarios:
– Used in sanitary ware, ships, automobiles, hardware, electronics, toys, electric…
– Suitable for static sealing and reciprocating motion sealing.

Pros:
– High sealing efficiency and versatility across various applications.
– Cost-effective and easy to install with low maintenance.

Cons:
– Limited to low-speed rotary sealing devices for rotary motion.
– Performance may vary based on the specific rubber material used.

China O Rings Suppliers, Manufacturers, Factory – Customized O Rings …

Product Details: Heavy Duty Static Seal JB-17 is a high efficiency static seal, usually used as an alternative to the o-ring and anti-extrusion ring for high pressure applications.

Technical Parameters:
– High pressure resistance
– Suitable for static applications

Application Scenarios:
– Hydraulic systems
– Industrial machinery

Pros:
– High efficiency
– Durable under pressure

Cons:
– Limited dynamic application
– Requires precise installation

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Comparison Table

Company	Product Details	Pros	Cons	Website
Top 10 O-ring Manufacturers and Suppliers in China (2024) – Hongju	O-rings are circular cross-section sealants used to prevent leakage of liquids and gases. They are manufactured from various materials including nitri…	– Wide range of products and materials – Customization options available for specific needs	– Minimum order quantities may apply for some manufacturers – Quality may vary between different manufacturers	hongjusilicone.com
O-Rings, Rubber Seals – Best China Manufacturer & Supplier – Savvy	High-Quality Rubber O-Rings manufactured by Savvy, available in various materials including NBR, FKM, and Silicone.	– Low manufacturing cost and convenient use – Self-sealing effect with no need for periodic adjustment	– Difficult to achieve zero leakage in dynamic seals – Improper use can lead to cutting, twisting, and breaking	savvyrubber.com
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 materials available	– Limited information on specific applications – Potentially higher cost for custom solutions
Custom O-ring Manufacturer and Wholesale Supplier – Hongju	Custom O-rings and high-temperature O-ring seals manufactured by Hongju, suitable for engines, pumps, cylinders, connectors, valves, etc.	– High-quality materials and precision molds – Fast tooling and manufacturing times	– Limited information on specific material types – Potential variability in shipping times based on location	hongjusilicone.com
Rubber Seals, Custom Rubber & Plastic Parts Manufacturer	Professional Rubber Seals, O-Rings, Oil Seals, Custom Rubber Parts Manufacturer in China	– High-quality products with 100% customer satisfaction – Fast delivery and massive production capacity	– Limited information on specific product dimensions – Potential variability in custom orders	savvyrubber.com
China O Rings Manufacturers and Suppliers – Customized O Rings Factory …	O Rings manufactured by Tianjin SWKS Technology & Development Co., Ltd, available in various materials including NBR, FKM, EPDM, and silicone.	– Customizable sizes and materials – Durable and resistant to various chemicals	– Limited information on specific performance metrics – Potentially higher cost for custom orders	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…	– Durable and reliable sealing solutions – Wide range of products available	– Limited information on specific product dimensions – Potential variability in material quality	www.xmbestseal.com
Rubber O Ring Manufacturers – Ningbo Kaxite Sealing Materials Co., Ltd.	Rubber O Ring available in various materials including silicone, nitrile, and Viton, suitable for sealing applications.	– High flexibility and excellent electrical insulation. – Wide range of temperature resistance and chemical compatibility.	– Low temperature resistance for some materials may limit applications. – Specific adhesives may be required for bonding silicone cord.	www.seal-china.com
Custom Rubber Seal O-Ring Manufacturers, Suppliers, Factory	Rubber O-ring seals suitable for various mechanical equipment, providing sealing in static or moving states under specified conditions.	– High sealing efficiency and versatility across various applications. – Cost-effective and easy to install with low maintenance.	– Limited to low-speed rotary sealing devices for rotary motion. – Performance may vary based on the specific rubber material used.	www.chinarubberseal.com
China O Rings Suppliers, Manufacturers, Factory – Customized O Rings …	Heavy Duty Static Seal JB-17 is a high efficiency static seal, usually used as an alternative to the o-ring and anti-extrusion ring for high pressure…	– High efficiency – Durable under pressure	– Limited dynamic application – Requires precise installation	www.jinbondseal.com

Frequently Asked Questions (FAQs)

1. What types of rubber o-rings do manufacturers in China produce?

You can find a wide variety of rubber o-rings produced by manufacturers in China, including standard sizes and custom designs. They often use materials like Nitrile, Silicone, EPDM, and Viton, catering to different applications in industries such as automotive, aerospace, and plumbing.

2. How can I ensure the quality of o-rings from Chinese manufacturers?

To ensure quality, look for manufacturers with ISO certifications and positive customer reviews. Request samples before placing large orders and consider third-party inspections to verify the materials and dimensions meet your specifications.

3. What is the typical lead time for o-ring production in China?

Lead times can vary based on order size and complexity, but generally, you can expect production to take anywhere from 2 to 6 weeks. It’s best to communicate your timeline with the manufacturer to ensure they can meet your needs.

4. Are there minimum order quantities (MOQs) for rubber o-rings?

Yes, many manufacturers in China have minimum order quantities, which can range from a few hundred to several thousand pieces, depending on the type and size of the o-ring. Always check with the manufacturer for their specific MOQs.

5. How do I find reliable rubber o-ring manufacturers in China?

You can find reliable manufacturers through online platforms like Alibaba or Global Sources, or by attending trade shows. It’s important to conduct thorough research, read reviews, and communicate directly with potential suppliers to assess their reliability.