Are you in the market for high-quality O-rings but feeling overwhelmed by the multitude of manufacturers in China? You’re not alone! With so many options, it’s crucial to compare the top factories to ensure you get the best product for your needs. Understanding the strengths and specialties of these manufacturers can save you time and money while guaranteeing quality. Imagine having the peace of mind that comes from knowing you’ve chosen the right supplier. Ready to discover which factories stand out from the rest? Keep reading to find out how you can make an informed decision!

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

Product Details: O-Rings are rubber sealing rings with a circular cross-section used to seal various fluids such as air, water, and oil. They are widely used in hydraulic and pneumatic systems to prevent leakage under static conditions.

Technical Parameters:
– Material: Various (NBR, FKM, Silicone, etc.)
– Temperature Range: Varies by material (e.g., NBR: -40°C to 120°C, FKM: -20°C to…

Application Scenarios:
– Mechanical parts to prevent leakage of liquid and gaseous media
– Dynamic sealing applications in hydraulic and pneumatic systems

Pros:
– Simple structure and compact installation
– Self-sealing effect with no need for periodic adjustment

Cons:
– High starting friction resistance in compression sealing
– Difficult to achieve zero leakage in dynamic seals

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 in various applications. They can be manufactured from materials like nitrile rubber, silicone, EPDM rubber, and Fluorocarbon (Viton).

Technical Parameters:
– Available in standard and metric sizes
– Manufacturing techniques include injection molding, extrusion, and compression m…

Application Scenarios:
– Used in automotive and aerospace industries
– Applicable in both static and dynamic applications

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

Cons:
– Potential limitations in material options depending on supplier
– Quality may vary among different manufacturers

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

Product Details: Xiamen Seals Technology offers a range of sealing products including O-Rings, X-Rings, Back Up Rings, NBR O-Rings, Encapsulated O-Rings, and Custom Rubber Parts. These products are designed for various industrial applications.

Technical Parameters:
– Materials: NBR, EPDM, FKM, Silicone
– Sizes: Standard and Metric, customizable based on specifications

Application Scenarios:
– Automotive industry
– Medical equipment

Pros:
– Wide range of sealing solutions available
– Customizable products to meet specific requirements

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

O Rings Manufacturer | O Rings Supplier – Hongjie Rubber Seal

Product Details: Wholesale O Rings in Bulk from Hongjie Rubber Seal, a professional O-rings manufacturer in China since 2000, offering custom O-rings wholesale services.

Technical Parameters:
– One-stop O rings OEM/ODM solution
– Various international O-Ring standards with most sizes already tooling

Application Scenarios:
– Automotive
– Aerospace

Pros:
– Affordable factory direct price of rubber O rings
– Custom options available: design, color, packaging, logo

Cons:
– Limited specific technical parameters provided
– Generic placeholders for detailed specifications

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. They also supply 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 manufacturing with strict quality control
– Wide range of materials available for various applications

Cons:
– Limited information on specific product limitations
– Potentially higher costs for custom solutions

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

Product Details: SWKS offers a variety of O Rings including NBR, Silicone, Viton, EPDM, HNBR, and custom options. They provide seals for various applications such as automotive, industrial, and hydraulic systems.

Technical Parameters:
– Material: NBR, Silicone Rubber, Viton, EPDM, HNBR
– Size: As Custom Drawing or Sample

Application Scenarios:
– Automotive sealing applications
– Hydraulic and pneumatic systems

Pros:
– Customized service available to meet specific requirements
– Competitive pricing with over 10 years of manufacturing experience

Cons:
– Limited information on specific performance metrics
– Potential variability in quality depending on custom specifications

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:
– Automotive industry for sealing components.
– Aerospace applications requiring reliable sealing solutions.

Pros:
– Versatile for both static and dynamic applications.
– Customization options available for specific client needs.

Cons:
– Minimum order quantities can vary significantly.
– Quality may depend on the manufacturer and their certifications.

Custom O-ring Manufacturer and Wholesale Supplier – Hongju

Product Details: Custom O-rings manufactured from high-quality silicone rubber and high-temperature materials, suitable for various applications including engines, pumps, cylinders, connectors, and valves.

Technical Parameters:
– Hardness tolerance: plus or minus 3-5A
– Dimensions and tolerances follow ISO3601 standards

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

Pros:
– Inexpensive and effective sealing solution
– Customizable sizes and materials available

Cons:
– Limited information on specific material properties
– Potential variability in manufacturing times based on order size

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

Product Details: Viton O-Rings are synthetic rubber products designed to withstand extreme environments, including high pressure and temperatures, and are resistant to flame, chemicals, oils, and fluids.

Technical Parameters:
– High durability
– Temperature and pressure tolerance

Application Scenarios:
– Mechanical applications
– Automotive and aerospace industries

Pros:
– High-quality materials
– Customization capabilities

Cons:
– Potentially higher costs compared to local alternatives
– Limited availability in some regions

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 high pressure

Cons:
– Limited to static applications
– May require specific installation techniques

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Comparison Table

Company	Product Details	Pros	Cons	Website
O-Rings, Rubber Seals – Best China Manufacturer & Supplier – Savvy	O-Rings are rubber sealing rings with a circular cross-section used to seal various fluids such as air, water, and oil. They are widely used in hydrau…	– Simple structure and compact installation – Self-sealing effect with no need for periodic adjustment	– High starting friction resistance in compression sealing – Difficult to achieve zero leakage in dynamic seals	savvyrubber.com
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 in various applications. They can be manufactured from materi…	– Wide range of products available – Customization options for specific needs	– Potential limitations in material options depending on supplier – Quality may vary among different manufacturers	hongjusilicone.com
China O-Rings, X-Rings, Back Up Rings Suppliers and Manufacturers …	Xiamen Seals Technology offers a range of sealing products including O-Rings, X-Rings, Back Up Rings, NBR O-Rings, Encapsulated O-Rings, and Custom Ru…	– Wide range of sealing solutions available – Customizable products to meet specific requirements	– Limited information on specific technical specifications – Potentially high minimum order quantities for custom parts	www.sealsmanufacturer.com
O Rings Manufacturer	O Rings Supplier – Hongjie Rubber Seal	Wholesale O Rings in Bulk from Hongjie Rubber Seal, a professional O-rings manufacturer in China since 2000, offering custom O-rings wholesale service…	– Affordable factory direct price of rubber O rings – Custom options available: design, color, packaging, logo	– Limited specific technical parameters provided – Generic placeholders for detailed specifications
Custom Rubber Seals & O-rings Manufacturer	Haisun Rubber	HAISUN manufactures precision O-rings such as NBR, HNBR, AMQ, FKMT, EDPM, ACM, and CR. They also supply standard O-ring parts and O-ring kits.	– High precision manufacturing with strict quality control – Wide range of materials available for various applications	– Limited information on specific product limitations – Potentially higher costs for custom solutions
China O Rings Manufacturers and Suppliers – Customized O Rings Factory …	SWKS offers a variety of O Rings including NBR, Silicone, Viton, EPDM, HNBR, and custom options. They provide seals for various applications such as a…	– Customized service available to meet specific requirements – Competitive pricing with over 10 years of manufacturing experience	– Limited information on specific performance metrics – Potential variability in quality depending on custom specifications	www.svks-rubberseal.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 for both static and dynamic applications. – Customization options available for specific client needs.	– Minimum order quantities can vary significantly. – Quality may depend on the manufacturer and their certifications.	www.rubber-tools.com
Custom O-ring Manufacturer and Wholesale Supplier – Hongju	Custom O-rings manufactured from high-quality silicone rubber and high-temperature materials, suitable for various applications including engines, pum…	– Inexpensive and effective sealing solution – Customizable sizes and materials available	– Limited information on specific material properties – Potential variability in manufacturing times based on order size	hongjusilicone.com
Top 10 Viton O-ring Manufacturers and Suppliers in China(2025) – Hongju	Viton O-Rings are synthetic rubber products designed to withstand extreme environments, including high pressure and temperatures, and are resistant to…	– High-quality materials – Customization capabilities	– Potentially higher costs compared to local alternatives – Limited availability in some regions	hongjusilicone.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 high pressure	– Limited to static applications – May require specific installation techniques	www.jinbondseal.com

Frequently Asked Questions (FAQs)

What types of O-rings can I find in Chinese manufacturing factories?

You can find a wide variety of O-rings in Chinese manufacturing factories, including standard, custom, and specialty O-rings made from various materials like rubber, silicone, and fluorocarbon. Many factories also offer O-rings in different sizes and durometers to meet specific industry requirements.

How do I choose a reliable O-ring manufacturer in China?

To choose a reliable O-ring manufacturer, look for companies with good reviews, certifications, and a solid track record. Request samples, check their production capabilities, and ask about their quality control processes to ensure they meet your standards.

What is the typical lead time for O-ring production in China?

The typical lead time for O-ring production in China ranges from 2 to 6 weeks, depending on the complexity of the order and the manufacturer’s workload. It’s always a good idea to discuss timelines upfront to ensure your needs are met.

Are there minimum order quantities for O-rings from Chinese manufacturers?

Yes, many Chinese manufacturers have minimum order quantities (MOQs) for O-rings, which can vary significantly based on the type and customization required. It’s essential to inquire about MOQs when reaching out to potential suppliers to plan your order accordingly.

How can I ensure the quality of O-rings produced in China?

To ensure quality, request samples before placing a large order and consider conducting third-party inspections during production. Additionally, choose manufacturers with ISO certifications and a solid reputation for quality control to help guarantee that the O-rings meet your specifications.