Are you looking for the best nitrile rubber O-ring factories in China? With so many options available, it can be overwhelming to choose the right one. 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.
NBR O-Rings, Buna-N / Nitrile O-Rings – China Manufacturer
Product Details: Nitrile (NBR) O-rings are made from a synthetic rubber compound that offers excellent resistance to oil, fuel, and other chemicals. They are commonly used in various industrial applications, including automotive, aerospace, and hydraulic systems. These O-rings are available in a range of sizes and can operate effectively in a wide temperature range.
Pros:
– Excellent resistance to oil, fuel, and other chemicals
– High durability and longevity
– Operate effectively in a wide temperature range
– Versatile and used in various industrial applications
Cons:
– May not be suitable for applications involving high temperatures or certain chem…
– Can be more expensive than some other types of O-rings
– May have limited resistance to ozone and weathering
China O Rings Manufacturers and Suppliers
Top 10 O-ring Manufacturers and Suppliers in China (2024)
O-Rings | China – Products | Parker NA
china manufacture black NBR 70 rubber o-ring with high …
Product Details: The product is a black NBR (nitrile-butadiene rubber) O-ring with a hardness of 70 Shore A. It is manufactured by DMS Seals Technology Co., Limited, located in Foshan, China. The O-ring is suitable for various applications, including double-acting seals, and is used for static sealing more than dynamic applications. The material is resistant to hydraulic oil, fire retardant liquids, water, and other media. The operating pressure range is 0~5MPa, the temperature range is -30°C to +100°C, and the speed limit is 2m/s. The company has over 10 years of experience in seals production, is ISO 9001:2008 and TS 16949:2009 certified,
and offers free samples but does not cover freight costs.
Pros:
– Excellent resistance to oils, fuels, greases, and various chemical substances.
– Durable and wear-resistant, extending the seal’s lifespan and reducing maintenan…
– Optimal balance between flexibility and strength, allowing effective sealing und…
– Wide applicability in industries such as automotive, aerospace, and machinery.
– Compliant with ISO 9001:2008 and TS 16949:2009 standards.
Cons:
– Not recommended for dynamic applications without sufficient lubrication.
– Poor resistance to weathering, sunlight, and ozone.
– Not suitable for use with ketones (MEK), halogenated hydrocarbons, auto and airc…
O-Rings, Rubber Seals – Best China Manufacturer & …
Product Details: Savvy manufactures a wide range of o-rings, including traditional standard o-rings, encapsulated o-rings, backup-rings, x-rings, and custom o-rings. The o-rings can be made from various materials such as rubber, metal, and other materials, with rubber being the most commonly used. Popular rubber compounds include NBR, FKM (Viton), and Silicone. Each material has specific properties and applications: NBR is widely used due to its good properties and low cost; FKM/Viton offers comprehensive performance and is used in high-standard sealing equipment; Silicone is used in medical and food industries due to its non-toxic and high-temperature resistant properties. The hardness of o-rings is
measured in Shore A, typically ranging from 40 to 90, with 70 being generally more suitable. O-rings are available in various colors, and custom colors can be produced with additional cost and longer delivery times.
Pros:
– Wide range of materials and sizes available
– Fast delivery and low mold/tooling costs for custom o-rings
– Good wear resistance and sealing performance
– Variety of colors available for easy identification
– High-quality and cost-effective
Cons:
– Low hardness o-rings can be prone to peeling, installation damage, extrusion, an…
– High hardness o-rings can be inconvenient to install
– Custom colors may increase cost and require larger MOQ with longer delivery time…
China Nitrile Rubber O-Ring Manufacturer and Supplier, Factory
FKM O Rings, China NBR O Ring supplier
Custom HNBR O-Ring Manufacturer in China
Product Details: HNBR O-rings are made from Hydrogenated Nitrile Butadiene Rubber, a synthetic polymer obtained by saturating the double bonds in nitrile’s butadiene segments with hydrogen. This process enhances the material’s heat, ozone, and chemical resistance. HNBR O-rings are available in 70, 80, and 90 durometers and are suitable for use with petroleum-based oils and fuels, aliphatic hydrocarbons, vegetable oils, silicone oils and greases, ethylene glycol, water, and steam up to 300°F. They also exhibit good resistance to diluted acids, bases, and salt solutions.
Pros:
– Excellent resistance to oils and chemicals
– High temperature resistance up to 150°C (302°F)
– Good low-temperature properties down to -40°C (-20°F)
– Resistant to ozone and oxidation
– Suitable for use with various fluids including petroleum-based oils, fuels, and…
– Cost-effective alternative to fluorocarbon rubber in some applications
Cons:
– Not suitable for use with chlorinated hydrocarbons, ketones, ethers, esters, and…
– Sulfur-curing can reduce heat resistance and cause an inferior compression set
– Higher Acrylonitrile (ACN) content can result in inferior low-temperature proper…
China Gold Supplier for Nitrile Rubber Seal – High quality O …
Product Details: Nitrile rubber (NBR) seals and o-rings are made from a copolymer of acrylonitrile and butadiene. The acrylonitrile content varies from 18% to 50%, influencing the material’s properties. Standard NBRs typically have a 34% acrylonitrile content. They are available in various hardness levels (Shore A 40-90) and can be compounded for different applications, including FDA standards and metal detectability. NBR o-rings are suitable for temperatures ranging from -40°F to +250°F (-40°C to +121°C), with some special compounds extending this range.
Pros:
– Excellent resistance to petroleum-based oils and fuels
– Good mechanical properties, high wear resistance, and high abrasion resistance
– Maintains flexibility in low temperatures
– Low compression set
– High tensile strength
– Economical cost
– Can be compounded for FDA standards and various specific applications
Cons:
– Not compatible with fuels of high aromatic content, aromatic hydrocarbons, chlor…
– Easily attacked by ozone, reducing compatibility with outdoor exposure
– Higher acrylonitrile content reduces low-temperature flexibility
– May contain phthalate type plasticizers which can migrate out and cause issues w…
– Not resistant to glycol-based brake fluids and phosphate ester hydraulic fluids
Comparison Table
| Company | Product Details | Pros | Cons | Website |
|---|---|---|---|---|
| NBR O-Rings, Buna-N / Nitrile O-Rings – China Manufacturer | Nitrile (NBR) O-rings are made from a synthetic rubber compound that offers excellent resistance to oil, fuel, and other chemicals. They are commonly… | – Excellent resistance to oil, fuel, and other chemicals – High durability and longevity – Operate effectively in a wide temperature range – Versatile… | – May not be suitable for applications involving high temperatures or certain chem… – Can be more expensive than some other types of O-rings – May h… | savvyrubber.com |
| China O Rings Manufacturers and Suppliers | www.svks-rubberseal.com | |||
| Top 10 O-ring Manufacturers and Suppliers in China (2024) | hongjusilicone.com | |||
| O-Rings | China – Products | Parker NA | ||
| china manufacture black NBR 70 rubber o-ring with high … | The product is a black NBR (nitrile-butadiene rubber) O-ring with a hardness of 70 Shore A. It is manufactured by DMS Seals Technology Co., Limited, l… | – Excellent resistance to oils, fuels, greases, and various chemical substances. – Durable and wear-resistant, extending the seal’s lifespan and reduc… | – Not recommended for dynamic applications without sufficient lubrication. – Poor resistance to weathering, sunlight, and ozone. – Not suitable for us… | www.dmsseals.com |
| O-Rings, Rubber Seals – Best China Manufacturer & … | Savvy manufactures a wide range of o-rings, including traditional standard o-rings, encapsulated o-rings, backup-rings, x-rings, and custom o-rings. T… | – Wide range of materials and sizes available – Fast delivery and low mold/tooling costs for custom o-rings – Good wear resistance and sealing perform… | – Low hardness o-rings can be prone to peeling, installation damage, extrusion, an… – High hardness o-rings can be inconvenient to install – Custom… | savvyrubber.com |
| China Nitrile Rubber O-Ring Manufacturer and Supplier, Factory | www.ymsealing.com | |||
| FKM O Rings, China NBR O Ring supplier | www.o-ringsseals.com | |||
| Custom HNBR O-Ring Manufacturer in China | HNBR O-rings are made from Hydrogenated Nitrile Butadiene Rubber, a synthetic polymer obtained by saturating the double bonds in nitrile’s butadiene s… | – Excellent resistance to oils and chemicals – High temperature resistance up to 150°C (302°F) – Good low-temperature properties down to -40°C (-20°F)… | – Not suitable for use with chlorinated hydrocarbons, ketones, ethers, esters, and… – Sulfur-curing can reduce heat resistance and cause an inferior… | www.yosonseals.com |
| China Gold Supplier for Nitrile Rubber Seal – High quality O … | Nitrile rubber (NBR) seals and o-rings are made from a copolymer of acrylonitrile and butadiene. The acrylonitrile content varies from 18% to 50%, inf… | – Excellent resistance to petroleum-based oils and fuels – Good mechanical properties, high wear resistance, and high abrasion resistance – Maintains… | – Not compatible with fuels of high aromatic content, aromatic hydrocarbons, chlor… – Easily attacked by ozone, reducing compatibility with outdoor… | m.ymsealing.com |
Frequently Asked Questions (FAQs)
Frequently Asked Questions About Nitrile Rubber O-Ring Factories in China
What are the main advantages of Nitrile (NBR) O-Rings?
Nitrile (NBR) O-Rings are highly popular due to their excellent mechanical properties, good abrasion resistance, and heat resistance. They are also compatible with fuels, oils, and solvents, making them ideal for applications involving petroleum-based fluids. However, they are not suitable for use in polar solvents like ketones or ozone.
Which Chinese manufacturers are known for producing high-quality NBR O-Rings?
Several Chinese manufacturers are renowned for their high-quality NBR O-Rings. Companies like Savvy Rubber, Xiamen Lindas Hardware Industrial Co., Ltd., and Jiangyin No.3 Rubber Manufacturer Co., Ltd. are known for their reliable products and extensive experience in the industry. These manufacturers offer a wide range of NBR O-Rings with various specifications and customization options.
What is the typical temperature range for NBR O-Rings?
NBR O-Rings generally operate within a temperature range of -40°C to 120°C (-40°F to 248°F). This range makes them suitable for a variety of applications, from low-temperature environments to high-temperature settings. However, the performance can vary depending on the acrylonitrile content, with higher content improving resistance to petrochemicals but reducing low-temperature performance.
Can I customize NBR O-Rings according to my specific needs?
Yes, you can customize NBR O-Rings to fit your specific requirements. Many Chinese manufacturers, such as Xiamen Flying Silicone Rubber Co., Ltd. and Dongguan Zhongsheng Rubber Products Co., Ltd., offer customization services. You can provide your design drawings, and they will help you turn your ideas into mass production, using various materials like NBR, EPDM, and VITON.
What is the typical shelf life of NBR O-Rings?
The typical shelf life of NBR O-Rings is between 5 to 10 years, depending on storage conditions. Proper storage in a cool, dry place away from direct sunlight and chemicals can help extend the shelf life. It’s also important to check the manufacturer’s recommendations for storage and usage to ensure the O-Rings remain in good condition.