Are you curious about where to find the best O-ring manufacturers in China? With countless factories vying for your attention, knowing which ones stand out can make all the difference for your projects. Comparing the top manufacturers not only saves you time but also ensures you receive high-quality products that meet your specific needs. Imagine the peace of mind that comes with choosing a reliable supplier! Dive into our article to discover the leading O-ring factories in China and make informed decisions that will elevate your business. Let’s explore the best options together!

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 (Viton).

Technical Parameters:
– Standard and metric sizes
– Low minimum order quantities (MOQs)

Application Scenarios:
– Automotive industry
– Aerospace industry

Pros:
– Wide range of products
– Customization available

Cons:
– Potentially high costs for small orders
– Quality may vary by manufacturer

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 – 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 O-ring Manufacturer and Wholesale Supplier – Hongju

Product Details: Custom O-rings and high-temperature O-ring seals manufactured from certified materials for various applications.

Technical Parameters:
– Hardness tolerance: +/- 3-5A
– Dimensions and tolerances follow ISO3601 standards

Application Scenarios:
– Sealing for engines, pumps, cylinders, connectors, valves
– Static and dynamic applications

Pros:
– Inexpensive and effective sealing solution
– Wide selection of stock items and customization capabilities

Cons:
– Limited information on specific material properties
– Potential variability in manufacturing time based on quantity

O Rings Manufacturer | O Rings Supplier – Hongjie Rubber Seal

Product Details: Wholesale O Rings in Bulk from Hongjie, 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 industry.
– Hydraulic & Pneumatic applications.

Pros:
– Affordable factory direct price.
– Custom options available for design, color, packaging, and logo.

Cons:
– Limited information on specific technical parameters.
– No detailed cons provided in the content.

Custom Rubber Seals & O-rings Manufacturer | Haisun Rubber

Product Details: Custom Rubber Seals & O-rings manufactured by HAISUN, including precision O-rings such as NBR, HNBR, AMQ, FKMT, EDPM, ACM, and CR.

Technical Parameters:
– O-ring dimension accuracy tolerance up to 0.01mm
– Rubber seals accuracy tolerance up to 0.02mm

Application Scenarios:
– Smartphones
– Medical devices

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

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

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

Product Details: O-rings, X-rings, Back Up Rings, NBR O-Rings, Encapsulated O-Rings, Custom Rubber Parts, O Ring Kits

Technical Parameters:
– Material: NBR, EPDM, Silicone, FKM
– Sizes: Standard and Metric

Application Scenarios:
– Automotive industry
– Medical equipment

Pros:
– Wide range of applications
– High-quality materials

Cons:
– Limited information on specific products
– Potential for variability in custom orders

Top 10 O-Rings Manufacturers in China – News – qlrubber.com

Product Details: O-rings manufactured by various companies in China, including custom and standard options.

Technical Parameters:
– Materials: FKM, NBR, Silicone, EPDM, NR, PU, CR, HNBR, SBR, IIR, SEP, Fluorosili…
– Sizes: Various sizes available for different applications

Application Scenarios:
– Used in automotive, aerospace, and medical industries
– Suitable for sealing applications in various machinery and equipment

Pros:
– High-quality materials used
– Custom production options available

Cons:
– Limited information on specific product performance
– Potential variability in quality among manufacturers

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

Product Details: Viton O-Rings are highly durable 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 pressure tolerance
– Temperature resistance

Application Scenarios:
– Automotive
– Aerospace

Pros:
– Excellent resistance to chemicals
– Customization capabilities

Cons:
– Higher cost compared to standard materials
– Limited availability in some regions

O Rings, Gasket Rings, Sealing Ring Suppliers, Manufacturers, Factory …

Product Details: O-rings, gaskets, waterproof rings, cushions, custom-made miscellaneous pieces, and other rubber products.

Technical Parameters:
– Material: Nitrile, Silicone, PTFE
– Hardness: Various durometers available

Application Scenarios:
– Automotive sealing applications
– Industrial machinery and equipment

Pros:
– Cost-effective sealing solutions
– Wide range of products available

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

China Orings Viton Manufacturers and Suppliers, Factory | BD SEALS

Product Details: High-Performance Viton O-rings manufactured by Ningbo Bodi Seals Co., Ltd. Ideal for various applications due to their resistance to extreme temperatures, chemicals, and environmental factors.

Technical Parameters:
– Premium-grade materials
– Resistance to extreme temperatures and chemicals

Application Scenarios:
– Automotive
– Aerospace
– Oil and gas
– Pharmaceuticals

Pros:
– High-quality sealing solution
– Customizable options available

Cons:
– Limited information on specific sizes
– Potentially higher cost compared to standard O-rings

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 are manufactured using various techniques such as injec…	– Wide range of products – Customization available	– Potentially high costs for small orders – Quality may vary by manufacturer	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 O-ring Manufacturer and Wholesale Supplier – Hongju	Custom O-rings and high-temperature O-ring seals manufactured from certified materials for various applications.	– Inexpensive and effective sealing solution – Wide selection of stock items and customization capabilities	– Limited information on specific material properties – Potential variability in manufacturing time based on quantity	hongjusilicone.com
O Rings Manufacturer	O Rings Supplier – Hongjie Rubber Seal	Wholesale O Rings in Bulk from Hongjie, a professional O rings manufacturer in China since 2000, offering custom O rings wholesale services.	– Affordable factory direct price. – Custom options available for design, color, packaging, and logo.	– Limited information on specific technical parameters. – No detailed cons provided in the content.
Custom Rubber Seals & O-rings Manufacturer	Haisun Rubber	Custom Rubber Seals & O-rings manufactured by HAISUN, including precision O-rings such as NBR, HNBR, AMQ, FKMT, EDPM, ACM, and CR.	– High precision and quality control – Wide range of materials and applications	– Limited information on specific product limitations – Potentially higher cost for custom solutions
China O-Rings, X-Rings, Back Up Rings Suppliers and Manufacturers …	O-rings, X-rings, Back Up Rings, NBR O-Rings, Encapsulated O-Rings, Custom Rubber Parts, O Ring Kits	– Wide range of applications – High-quality materials	– Limited information on specific products – Potential for variability in custom orders	www.sealsmanufacturer.com
Top 10 O-Rings Manufacturers in China – News – qlrubber.com	O-rings manufactured by various companies in China, including custom and standard options.	– High-quality materials used – Custom production options available	– Limited information on specific product performance – Potential variability in quality among manufacturers	www.qlrubber.com
Top 10 Viton O-ring Manufacturers and Suppliers in China(2025) – Hongju	Viton O-Rings are highly durable synthetic rubber products designed to withstand extreme environments, including high pressure and temperatures, and a…	– Excellent resistance to chemicals – Customization capabilities	– Higher cost compared to standard materials – Limited availability in some regions	hongjusilicone.com
O Rings, Gasket Rings, Sealing Ring Suppliers, Manufacturers, Factory …	O-rings, gaskets, waterproof rings, cushions, custom-made miscellaneous pieces, and other rubber products.	– Cost-effective sealing solutions – Wide range of products available	– Limited information on specific product performance – Potential variability in material quality	www.yuefeng-seal.com
China Orings Viton Manufacturers and Suppliers, Factory	BD SEALS	High-Performance Viton O-rings manufactured by Ningbo Bodi Seals Co., Ltd. Ideal for various applications due to their resistance to extreme temperatu…	– High-quality sealing solution – Customizable options available	– Limited information on specific sizes – Potentially higher cost compared to standard O-rings

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 sizes, custom designs, and different materials like rubber, silicone, and polyurethane. These factories often cater to various industries, ensuring you can get the specific type you need for your application.

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

To choose a reliable o-ring manufacturer, 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 your standards.

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

The typical lead time for o-ring production in China can range 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 avoid any surprises.

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

Yes, many manufacturers in China have minimum order quantities (MOQs) for o-rings. MOQs can vary widely, so it’s essential to inquire with the manufacturer about their specific requirements, especially if you need a small batch.

What quality control measures do Chinese o-ring manufacturers implement?

Chinese o-ring manufacturers typically implement several quality control measures, including material inspections, in-process checks, and final product testing. Many factories also adhere to international quality standards, ensuring that their products meet your specifications and requirements.