Are you looking for the best o-ring manufacturers in China to meet your specific needs? With so many options available, choosing the right one can be overwhelming. In this article, we’ll compare the top o-ring factories in China, highlighting their unique strengths, product ranges, and what sets them apart from the rest. Let’s dive in and find the perfect fit for your business.
Rubber Cord Manufacturers, Suppliers, Factory
Buna-N Nitrile O Ring Gasket Cord
Product Details: Buna-N (Nitrile) O-Rings are made from a synthetic rubber material known as Acrylonitrile-Butadiene. They are available in standard durometers of 70 and 90, but can be produced in other hardness levels. The temperature range for these O-Rings is from -40°F to 250°F (-40°C to 121°C). They are typically black and come in a wide array of sizes, including both standard and metric sizes. Buna-N O-Rings are resistant to oils, fuels, mineral and vegetable oils, diluted acids, and alkalines. They have excellent compression set resistance, good wear resistance, and a tensile strength of ≥10 N/mm² with an elongation at break of
roughly 300%[2][3][4].
Pros:
– Excellent resistance to petroleum-based oils, water, and alcohols
– Good wear resistance and compression set resistance
– High tensile strength and elongation at break
– Cost-effective and durable
– Less likely to cause allergic reactions compared to latex or natural rubber
– Suitable for static and dynamic applications, though better suited for static
Cons:
– Not recommended for use with brake fluids, acetones, ketones, halogenated hydroc…
– Poor resistance to ozone, sunlight, and weathering
– Not suitable for applications requiring resistance to flame or high electrical p…
– Fair to good resistance to water steam, acid, and tear resistance
China Best O Ring Cord Suppliers and Manufacturers
Product Details: O-Ring Cord is a round section rubber extrusion made from various elastomeric materials such as Nitrile (NBR), Viton (FKM), Silicone, EPDM, and Neoprene. It can be cut to precision lengths and joined to create custom O-Rings, especially useful for odd-sized or large diameter O-Rings that cannot be fully moulded. The cord is available in a range of diameters from 1mm to 25mm and various hardness levels (e.g., 50 Shore A, 70 Shore A). It complies with standard sizes such as AS-568, JIS, and ISO 3601. The material choice offers resistance to oils, fuels, chemicals, heat, and UV light, depending on
the application requirements.
Pros:
– Versatile and can be cut to custom lengths to create O-Rings for specific applic…
– Available in various materials to suit different environmental conditions such a…
– Suitable for both static and dynamic applications, including hydraulic, pneumati…
– Complies with industry standards such as ARPM, RoHS, and REACH, ensuring high-qu…
Cons:
– Cross-sectional tolerances are larger than those of fully moulded seals, which c…
– Joined O-Rings are suitable only as static seals due to the extrusion process.
O-Ring Cord Stock, O-Ring Strip / Rope Manufacturer – Savvy
Viton O Ring Cord Ring Manufacturers and Suppliers China
Product Details: Viton O-Ring Cord is made from high-quality fluorocarbon (FKM) elastomeric material. It is available in various diameters ranging from 1mm to 25mm and has a hardness of 70-90 Shore A. The cord is designed to be cut to length, spliced, and vulcanized to create custom O-Rings. It offers resistance to oils, fuels, and certain chemicals, and its operating temperature range is -15°C to +300°C. The cord is RoHS and REACH compliant and is used in applications such as hydraulic and pneumatic systems, water and fluid systems, food processing equipment, and chemical processing plants.
Pros:
– High chemical resistance to oils, fuels, and certain chemicals.
– Wide operating temperature range (-15°C to +300°C).
– Available in various diameters and hardness levels.
– Can be customized to specific application requirements through splicing and vulc…
– Compliant with RoHS and REACH regulations.
Cons:
– May have limited low-temperature flexibility compared to some other types of Vit…
– Higher cost compared to other elastomeric materials like Nitrile or EPDM.
– Requires specialized splicing and vulcanization for custom sizes.
hydraulic rubber nitrile Buna-N NBR o ring …
Product Details: The hydraulic rubber nitrile Buna-N NBR O-rings are made from NBR material and are available in hardness levels of 70 and 90. They are black in color and come in various sizes, including P, G, AS568, and others. These O-rings are used for static sealing and can be applied in dynamic conditions under better system lubrication. They are suitable for mediums such as hydraulic oil, fire retardant liquids, and water. The operating pressure range is 0~5MPa, temperature range is -30℃ to +100℃, and the maximum speed is 2m/s.
Pros:
– Excellent sealing properties and durability
– Suitable for a wide range of applications including hydraulic systems, excavator…
– High temperature and pressure resistance
– Available in various sizes and specifications to meet different needs
– Passed ISO 9001:2008 and TS 16949:2009 quality certifications
Cons:
– Not recommended for dynamic applications with insufficient lubrication
– Limited to a maximum speed of 2m/s
– Requires proper system conditions such as lubrication, pressure, temperature, an…
China Rubber O Ring Cord Manufacturer and Supplier, Factory
Rubber Viton O-ring Cord
Product Details: The FPM/Viton O-Ring Cord is made from high-quality fluoro rubber (FKM) material. It is available in a diameter range of 1mm to 25mm and has various hardness levels, including 75 Shore A. The cord is designed to be cut to length, spliced, and vulcanized to create custom O-Rings. It offers a wide temperature range of -15°C to +300°C, making it suitable for diverse applications such as hydraulic and pneumatic systems, chemical processing plants, and manufacturing machinery. The cord complies with RoHS and REACH standards and is resistant to oils, fuels, and certain chemicals.
Pros:
– Wide range of chemical compatibility
– Extremely wide temperature range (-15°C to +300°C)
– Low compression set and low gas permeability
– Excellent resistance to acids, oils, greases, fuels, and various chemicals
– High resistance to aging, chemical, and ozone attacks
Cons:
– Higher cost compared to other elastomeric materials like Nitrile or EPDM
– Limited availability in certain sizes and colors
– Requires specialized splicing and vulcanizing for custom O-Ring creation
O-Rings, Rubber Seals – Best China Manufacturer & Supplier
Product Details: Savvy manufactures a wide range of o-rings made from various materials including NBR, FKM (Viton), Silicone, EPDM, HNBR, CR, Aflas, and more. These o-rings are available in standard and custom sizes, with the ability to produce encapsulated o-rings, backup-rings, x-rings, etc. The temperature range for these o-rings varies by material, such as -70°C to 220°C for Silicone. The hardness is typically measured in Shore A, with common hardness levels being 60 to 90. Savvy also offers o-rings in various colors, with the option for custom colors. The company has thousands of molds and can arrange for fast delivery via door-to-door
courier.
Pros:
– Good property and low cost, especially for NBR which makes up about 50% of o-rin…
– FKM (Viton) offers the best comprehensive performance and is widely used in high…
– Silicone o-rings are tasteless, non-toxic, and resistant to high temperatures an…
– Custom o-rings can be made at a very low mold/tooling cost with fast delivery.
– Wide range of materials available to suit different working conditions and appli…
Cons:
– Low hardness o-rings are prone to peeling, installation damage, extrusion, and p…
– High hardness o-rings can be inconvenient to install.
– Unique or custom colors may increase the cost and require a larger MOQ with a lo…
Brown Viton Solid Rubber O Ring Gasket Cord
Product Details: Viton solid rubber cords and gaskets are made from FKM (fluorocarbon rubber), known for their high performance in various applications. They are available in a wide range of sizes, from 1mm to 14mm, and can be customized to specific requirements. The material offers excellent resistance to high temperatures, ozone, oxygen, mineral oils, synthetic and organic solvents, and chemicals. Viton cords have a hardness range of 55-90 Shore A and are typically black or brown in color. They are used in automotive, aeronautical, gas, petrochemical, and other specialized sealing applications.
Pros:
– Excellent high temperature resistance up to 200°C (392°F)
– Outstanding resistance to hydrocarbons, chemicals, and organic solvents
– Good balance of strength, durability, and abrasion resistance with flexibility
– Excellent ozone and weathering resistance
– Wide range of sizes available, including bespoke options
– Low compression set and good fuel resistance
Cons:
– Higher cost compared to other elastomer materials
– Limited low-temperature flexibility in some grades, though special low-temperatu…
– May require special handling and storage due to their chemical resistance proper…
Comparison Table
| Company | Product Details | Pros | Cons | Website |
|---|---|---|---|---|
| Rubber Cord Manufacturers, Suppliers, Factory | www.oring-seal.com | |||
| Buna-N Nitrile O Ring Gasket Cord | Buna-N (Nitrile) O-Rings are made from a synthetic rubber material known as Acrylonitrile-Butadiene. They are available in standard durometers of 70 a… | – Excellent resistance to petroleum-based oils, water, and alcohols – Good wear resistance and compression set resistance – High tensile strength and… | – Not recommended for use with brake fluids, acetones, ketones, halogenated hydroc… – Poor resistance to ozone, sunlight, and weathering – Not suita… | www.seal-china.com |
| China Best O Ring Cord Suppliers and Manufacturers | O-Ring Cord is a round section rubber extrusion made from various elastomeric materials such as Nitrile (NBR), Viton (FKM), Silicone, EPDM, and Neopre… | – Versatile and can be cut to custom lengths to create O-Rings for specific applic… – Available in various materials to suit different environmental… | – Cross-sectional tolerances are larger than those of fully moulded seals, which c… – Joined O-Rings are suitable only as static seals due to the ex… | www.sealsmanufacturer.com |
| O-Ring Cord Stock, O-Ring Strip / Rope Manufacturer – Savvy | savvyrubber.com | |||
| Viton O Ring Cord Ring Manufacturers and Suppliers China | Viton O-Ring Cord is made from high-quality fluorocarbon (FKM) elastomeric material. It is available in various diameters ranging from 1mm to 25mm and… | – High chemical resistance to oils, fuels, and certain chemicals. – Wide operating temperature range (-15°C to +300°C). – Available in various diamete… | – May have limited low-temperature flexibility compared to some other types of Vit… – Higher cost compared to other elastomeric materials like Nitri… | www.svks-rubberseal.com |
| hydraulic rubber nitrile Buna-N NBR o ring … | The hydraulic rubber nitrile Buna-N NBR O-rings are made from NBR material and are available in hardness levels of 70 and 90. They are black in color… | – Excellent sealing properties and durability – Suitable for a wide range of applications including hydraulic systems, excavator… – High temperature… | – Not recommended for dynamic applications with insufficient lubrication – Limited to a maximum speed of 2m/s – Requires proper system conditions such… | www.dmsseals.com |
| China Rubber O Ring Cord Manufacturer and Supplier, Factory | www.ymsealing.com | |||
| Rubber Viton O-ring Cord | The FPM/Viton O-Ring Cord is made from high-quality fluoro rubber (FKM) material. It is available in a diameter range of 1mm to 25mm and has various h… | – Wide range of chemical compatibility – Extremely wide temperature range (-15°C to +300°C) – Low compression set and low gas permeability – Excellent… | – Higher cost compared to other elastomeric materials like Nitrile or EPDM – Limited availability in certain sizes and colors – Requires specialized s… | www.xmbestseal.com |
| O-Rings, Rubber Seals – Best China Manufacturer & Supplier | Savvy manufactures a wide range of o-rings made from various materials including NBR, FKM (Viton), Silicone, EPDM, HNBR, CR, Aflas, and more. These o-… | – Good property and low cost, especially for NBR which makes up about 50% of o-rin… – FKM (Viton) offers the best comprehensive performance and is w… | – Low hardness o-rings are prone to peeling, installation damage, extrusion, and p… – High hardness o-rings can be inconvenient to install. – Unique… | savvyrubber.com |
| Brown Viton Solid Rubber O Ring Gasket Cord | Viton solid rubber cords and gaskets are made from FKM (fluorocarbon rubber), known for their high performance in various applications. They are avail… | – Excellent high temperature resistance up to 200°C (392°F) – Outstanding resistance to hydrocarbons, chemicals, and organic solvents – Good balance o… | – Higher cost compared to other elastomer materials – Limited low-temperature flexibility in some grades, though special low-temperatu… – May requir… | www.seal-china.com |
Frequently Asked Questions (FAQs)
Frequently Asked Questions About O-Ring Cord Factories in China
What materials are commonly used to make o-rings in Chinese factories?
Chinese o-ring factories often use a variety of materials, including Nitrile Butadiene Rubber (NBR), Fluorinated Rubber (FKM or Viton), Silicone, Ethylene Propylene Diene Monomer (EPDM), and Hydrogenated Nitrile Butadiene Rubber (HNBR). Each material has its own unique properties and is chosen based on the specific application and required performance.
Can I customize the size and shape of o-rings from Chinese manufacturers?
Yes, you can customize the size and shape of o-rings from Chinese manufacturers. Many factories, such as Savvy and Dongguan Hongju Silicone Rubber Products Co., Ltd., offer OEM and ODM services, allowing you to specify your own dimensions and designs. They also have a wide range of molds available to meet different size and shape requirements.
What is the typical lead time and delivery process for o-ring orders from China?
The lead time for o-ring orders from China can vary depending on the manufacturer and the complexity of the order. However, many factories offer prompt delivery services, with some even providing door-to-door courier services. For example, Savvy can arrange delivery quickly, and Xiamen Lindas Hardware Industrial Co., Ltd. offers services that include assembly, packing, and shipment.
Do Chinese o-ring manufacturers provide free samples for testing?
Yes, some Chinese o-ring manufacturers provide free samples for testing. For instance, Dongguan Hongju Silicone Rubber Products Co., Ltd. offers free samples to potential customers, allowing you to test the quality and performance of their o-rings before placing a larger order.
What kind of quality control measures do Chinese o-ring factories implement?
Chinese o-ring factories implement strict quality control measures to ensure high-quality products. These measures include using high-quality raw materials, advanced production methods like injection molding and die cutting, and rigorous testing procedures. Companies like Yimai and DMS Seals Technology Co., Ltd. emphasize exceptional talents, sophisticated devices, and strengthened technology forces to maintain high standards.