Are you looking for the best metal O-ring factories in China? If so, you’re in the right place. In this article, we’ll compare some of the top manufacturers, highlighting their strengths, product ranges, and what sets them apart in the industry. Let’s dive in and find the perfect fit for your needs.

Stainless O Ring Manufacturer in China – HM

Product Details: The Stainless Steel Non-Welded O Ring from HM is designed for strength and versatility. It is available in different sizes and finishes, and can be customized to meet specific requirements. These O rings are made from various grades of stainless steel, ensuring durability and resistance to corrosion.

Pros:
– Available in different sizes and finishes
– Customizable to meet specific requirements
– Made from durable and corrosion-resistant stainless steel
– Designed for strength and versatility

Cons:
– No specific cons mentioned on the website
– Customization may add to the cost or lead time

Metal O Rings

China O Rings Manufacturers and Suppliers

Xiamen Xlong Seal Co.,Ltd 厦门旭隆密封件有限公司

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

China Metal Seals Factory – DLSEALS

Product Details: DLSEALS offers a variety of metal seals, including Stainless Steel O-Rings, Axial Metal C-type Seal Rings, Metal O-rings, and various types of E-type sealing rings. The products include External pressure metal E-type sealing ring (E-type outer opening), Internal pressure metal E-type sealing ring (E-type inner opening), Basic Hollow Metal O-ring Seal, Balanced Hollow Metal O-ring Seal, and Internal pressure spring reinforced metal C-type seal ring. These seals are durable and customizable for different applications.

Pros:
– High corrosion resistance, particularly with stainless steel options.
– Unlimited shelf life and radiation resistance.
– Low load compared to Ring Type Joints (RTJ’s) and similar flat gaskets.
– Customizable to meet various industry needs.
– Durable and suitable for high-pressure and high-temperature environments.

Cons:
– Limited information on specific material costs or pricing.
– No detailed information on the minimum order quantity or lead times.

China O-Ring Kits Suppliers – NNK Oil Seal

Product Details: The Universal Type O-Ring Kit Box 30 size is a comprehensive assortment of O-rings made from commercial grade nitrile butadiene rubber (NBR) and fluoroelastomer (FKM) formulations. The kit includes 382-419 pieces depending on the type, with sizes available in both inches and millimeters. The O-rings are characterized by their oil, chemical, and high-pressure resistance, and they have a temperature range of -40 to 260°C. They are suitable for various applications including machines, excavators, cars, doors, windows, electric appliances, bearings, and pumps. The kit is certified with ISO9001/TS16949 and meets ASTM D 2000 standards. The O-rings have a hardness of 60-90

Shore A and are available in black, brown, red, and clear colors.

Pros:
– High resistance to oils and chemicals
– Wide temperature range (-40 to 260°C)
– Suitable for various applications including machines, excavators, and automotive…
– Durable and UV resistant
– Meets high-quality standards (ISO9001/TS16949, ASTM D 2000)
– Available in multiple sizes and materials (NBR, FKM, Silicone)

Cons:
– No specific information on the lifespan or replacement intervals
– May require professional expertise for proper installation
– Limited information on compatibility with all types of fluids or gases

Viton O Ring Suppliers, Manufacturers, Factory

Product Details: Viton O-Rings are made from fluoroelastomer (FKM) material. They have a hardness range of 65°-95 Shore A, a tensile strength of 7 MPa (min), and an elongation at break of 200% (min). The temperature range for Viton O-Rings is -30°C to +250°C, although low temperature resistance is limited to approximately -26°C (-15°F) for static applications and between -15°C and -18°C (5°F and 0°F) for dynamic conditions. They exhibit excellent resistance to high temperatures, ozone, oxygen, mineral oil, synthetic hydraulic fluids, fuels, aromatics, and many organic solvents and chemicals. Gas permeability is very low, similar to that of butyl rubber[3].

Pros:
– Excellent resistance to high temperatures, ozone, oxygen, mineral oil, synthetic…
– Long service life due to high resistance to compression and minimal permeability…
– Good wear resistance and moderate short-term resilience.
– Excellent permeation resistance and resistance to aggressive fluids.
– Suitable for applications in off-highway and heavy-duty equipment, chemical proc…

Cons:
– Low temperature resistance is not favorable, limited to approximately -26°C (-15…
– Dynamic conditions have a lowest service temperature between -15°C and -18°C (5°…

O ring Manufacturers & Suppliers – DLSEALS

Metal O Rings Seamless Molded Solid Round Ring

Product Details: Metal O Rings are made from high-quality stainless steel, such as 304 or 316 grades, ensuring durability and resistance to corrosion. They are seamless and molded into solid round rings, available in various sizes to fit different applications. These rings are often used in DIY crafts, macrame projects, and as hardware accessories for pet products, hammocks, and marine equipment.

Pros:
– Durable and resistant to corrosion
– Seamless and solid construction for reliability
– Versatile sizes for various applications
– Suitable for outdoor and marine use due to stainless steel material

Cons:
– May require additional tools for installation
– Can be heavy depending on the size and material
– Limited flexibility due to solid construction

Comparison Table

Frequently Asked Questions (FAQs)

Frequently Asked Questions About O-Ring Factories in China

What materials are commonly used by O-ring factories in China?

O-ring factories in China use a variety of materials, including Nitrile (NBR), Fluorine rubber (FKM, FPM, Viton), Silicone (SIL, VMQ), EPDM, Hydrogenated Nitrile (HNBR), Fluorosilicone (FVMQ), and perfluoroether (FFKM). These materials are chosen for their specific properties, such as resistance to high temperatures, chemicals, and wear, making them suitable for different applications.

What are the typical applications of O-rings produced by Chinese factories?

The O-rings produced by Chinese factories are used in a wide range of industries, including automotive, aerospace, chemical processing, petroleum refining, heavy-duty equipment, and more. They are essential for sealing in static and dynamic applications, ensuring the integrity and performance of various mechanical systems.

How do Chinese O-ring factories ensure quality and reliability?

Chinese O-ring factories often adhere to international standards such as ISO 9001, ISO 14001, and IATF16949. They conduct rigorous testing, including machine testing to ensure no burrs or damage, and guarantee elasticity. Many of these factories are audited suppliers, which adds an extra layer of quality assurance.

Can I customize O-rings according to my specific needs?

Yes, you can customize O-rings to meet your specific requirements. Many Chinese O-ring manufacturers offer custom sizes, materials, and designs based on your drawings or samples. This flexibility allows you to get O-rings that perfectly fit your application needs.

What is the typical minimum order quantity (MOQ) for O-rings from Chinese factories?

The minimum order quantity (MOQ) for O-rings from Chinese factories can vary widely, ranging from as low as 1 piece to several thousand pieces. For example, some factories may have an MOQ of 10 pieces, while others may require 500 or 5,000 pieces. It depends on the specific manufacturer and the type of O-ring you need.