Are you looking for the best buna nitrile rubber (NBR) factories in China? If so, you’re in the right place. In this article, we’ll compare the top NBR manufacturers, highlighting their strengths, product ranges, and what sets them apart. Let’s dive into the world of NBR 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
– Suitable for various industrial applications

Cons:
– May not be as flexible as some other materials
– Can be more expensive than some alternative materials
– Not suitable for applications involving high levels of ozone or certain chemical…

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. These O-rings are black in color and come in various sizes, including P, G, AS568, and others. They are used for static sealing and can be applied in dynamic conditions under better system lubrication. The operating pressure range is 0~5MPa, and the temperature range is -30℃ to +100℃. The O-rings are suitable for mediums such as hydraulic oil, fire retardant liquids, and water. They have a speed limit of 2m/s and are not recommended for use in rotary

motion without sufficient lubrication[1][2][4].

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 rotary motion without sufficient lubrication
– Limited to static sealing or dynamic applications with good system lubrication
– Dependent on system conditions such as pressure, temperature, and sealing cleara…

Buna-N 70 Shore A Rubber O-Rings

Product Details: Nitrile and Viton® O-rings are elastomeric seals used in various industrial applications. Nitrile O-rings are made from a synthetic copolymer of acrylonitrile and butadiene, while Viton® O-rings are made from fluorocarbon rubber. Nitrile O-rings are effective within a temperature range of -30°C to 100°C, whereas Viton® O-rings can withstand temperatures between -20°C to 210°C. Viton® O-rings have higher chemical resistance and are suitable for applications involving harsh chemicals, high temperatures, and outdoor exposure.

Pros:
– Nitrile O-rings offer superior abrasion and tear resistance, making them suitabl…
– Viton® O-rings provide excellent resistance to high temperatures, ozone, weather…
– Viton® O-rings are highly resistant to oxidation, UV exposure, fungus, weather,…

Cons:
– Nitrile O-rings perform poorly in harsh chemicals or outdoor applications and ar…
– Viton® O-rings are prone to failure below -15°C in dynamic applications due to i…
– Viton® O-rings are significantly more expensive than Nitrile O-rings, being ten…

Buna n Flexible Bellows from China manufacturer

Product Details: Buna n Flexible Bellows are made from Nitrile rubber (NBR), a copolymer of butadiene and acrylonitrile. These bellows are designed for applications requiring flexibility and resistance to various environmental factors. They are available in various sizes and configurations to fit different needs.

Pros:
– Excellent oil resistance, ranking only second to polysulfide rubber, acrylate, a…
– High tensile strength and wear resistance.
– Good flexibility and adaptability to different applications.

Cons:
– Not as universally resistant to chemicals, weather, and ozone exposure as Viton…
– Temperature range is generally lower than Viton, typically from -30 °F to 250 °F…

Buna-N Nitrile O Ring Gasket Cord

Product Details: Buna-N (Nitrile or NBR) O-Rings are made from a synthetic rubber material, a copolymer of acrylonitrile and butadiene. They are available in standard durometers of 70 and 90, but can be produced in other hardness levels as well. The temperature range for Buna-N O-Rings is typically -40°F to 250°F (-40°C to 121°C). They are generally black in color, but custom colors are available. Buna-N O-Rings are resistant to petroleum-based fuels, lubricants, mineral and vegetable oils, diluted acids, and alkalines.

Pros:
– Excellent resistance to petroleum-based fuels and lubricants
– Good wear resistance and compression set resistance
– Good short-term resilience and permeation resistance
– Cost-effective and widely available
– Less likely to cause allergic reactions compared to latex or natural rubber
– Good tensile strength (≥10 N/mm2) and elongation at break (roughly 300%)

Cons:
– Not recommended for use with brake fluids, acetones, ketones, halogenated hydroc…
– Poor flame resistance and ozone resistance
– Fair to good chemical resistance, acid resistance, and electrical properties
– Not suitable for applications requiring high resistance to aromatic hydrocarbons…

O Ring uggggg Black BUNA NBR Nitrile

Product Details: Family Pet Medical Center offers a wide range of veterinary services including emergency care, wellness care, preventive care, surgery, dental care, diagnostic care, cardiology, nutritional counseling, and more. They have an in-house pharmacy, in-house laboratory, and provide medical boarding and senior pet care. Advanced treatments include laser therapy and orthopedic surgery.

Pros:
– 24/7 urgent pet care available
– State-of-the-art equipment and advanced diagnostic tools
– Comprehensive range of services including dental care, cardiology, and nutrition…
– In-house pharmacy and laboratory for convenient access to medications and test r…
– Compassionate and caring staff

Cons:
– No specific cons mentioned on the website
– Limited geographical service area, primarily serving areas around Fort Lauderdal…

O Rings Black Buna-N Rubber

Product Details: Buna-N (NBR) O-Rings are made from a synthetic rubber material known as nitrile or acrylonitrile-butadiene. They are widely used due to their excellent resistance to oils, fuels, and other chemicals. These O-Rings have a temperature range of -40°F to 250°F (-40°C to 121°C) and are available in various durometers, typically 70 and 90 Shore A. They are used in applications such as hydraulic oils, fuels, pneumatic systems, and general purpose sealing. They also comply with various industry standards including FDA, UL, and MIL-SPEC.

Pros:
– Excellent resistance to oils and fuels
– Good wear resistance and compression set resistance
– Good short-term resilience and permeation resistance
– Low cost and widely available
– Suitable for a wide range of temperatures
– Less likely to cause allergic reactions compared to latex or natural rubber

Cons:
– Not recommended for exposure to brake fluids, ketones, halogenated hydrocarbons,…
– Poor flame resistance and ozone resistance
– Fair to good chemical resistance and acid resistance
– Fair weather resistance and tear resistance

Nitrile(Buna-N) O-RING

Product Details: Buna-N (Nitrile or NBR) o-rings are made from a synthetic rubber material known as acrylonitrile-butadiene terpolymer. They are widely used due to their excellent resistance to petroleum-based fuels, oils, and lubricants. Buna-N o-rings are available in various standard durometers, typically 70 and 90 Shore A, and can be produced in other hardness levels. They come in standard colors, usually black, but custom colors are available. The operational temperature range is from -40°F to 250°F (-40°C to 121°C), and they exhibit good wear resistance, compression set resistance, and short-term resilience.

Pros:
– Excellent resistance to petroleum-based fuels, oils, and lubricants
– Good wear resistance and compression set resistance
– Short-term resilience and good permeation resistance
– Cost-effective and widely available
– Less likely to cause allergic reactions compared to latex or natural rubber
– Suitable for a wide range of applications including automotive, aerospace, hydra…

Cons:
– Not resistant to weathering, sunlight, and ozone unless special compounds are us…
– Incompatible with brake fluids, ketones, halogenated hydrocarbons, strong acids,…
– Poor flame resistance and ozone resistance
– Limited resistance to aromatic hydrocarbons, chlorinated hydrocarbons, ethers, a…

What is Buna-n (NBR): Its Benefits and Uses – Hongju Silicone

Product Details: Buna-N (NBR) is a synthetic rubber copolymer made of acrylonitrile and butadiene. The composition typically includes 34% acrylonitrile, but this can vary from 18% to 50%. It is known for its high oil resistance, including resistance to silicone oils, vegetable oils, and other oils. Buna-N has good temperature resistance, functioning in a range of -40 to 107 degrees Celsius. It is highly customizable and can be adjusted for various applications, including compliance with specific standards like EN549 for gas appliances and safety for use with drinking water. It has a hardness range of 40 to 90 Shore A and is

generally black in color[3].

Pros:
– High oil resistance to petroleum-based oils and fuels, silicone greases, hydraul…
– Excellent abrasion and tear resistance, high tensile strength, and good compress…
– Versatile and widely used in various industries such as automotive, marine, and…
– Easy to process and has good physical properties, including high tensile strengt…
– Can be customized with different mix-ins and accelerators to meet specific requi…

Cons:
– Susceptible to ozone, ketones, ethers, esters, aromatic hydrocarbons, automotive…
– Poor resistance to fire, sunlight, harsh weather, and high temperatures.
– Less flexible than other rubbers, with flexibility decreasing as the acrylonitri…
– Oxidizes when in contact with strong oxidizers, which can lead to accidents in l…

Nitrile NBR Buna-N 70 O-Rings

Product Details: Nitrile (Buna-N) O-Rings are made from nitrile butadiene rubber (NBR) and have a durometer hardness of 70 ± 5. They are FDA certified, making them suitable for use in food and medical applications. These O-Rings are resistant to oils, fuels, and other chemicals, with a temperature range of -40°F to 250°F. They exhibit high durability and wear resistance, and have a shelf life of 15 years. Key specifications include a tensile strength of 1,419 psi and an elongation change of at least 439%[1][2][5].

Pros:
– High resistance to oils, fuels, and other chemicals
– FDA certified for use in food and medical applications
– High durability and wear resistance
– Wide temperature range of -40°F to 250°F
– Good mechanical properties and relatively low cost
– Suitable for applications with propane, butane, petroleum oil, mineral oil, grea…

Cons:
– Not resistant to weathering, sunlight, and ozone
– Not compatible with gasoline, benzene, trichlorethylene, ketone, acetone, acetic…
– Poor resistance to halogenated hydrocarbons and auto/aircraft brake 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 – Suitable…	– May not be as flexible as some other materials – Can be more expensive than some alternative materials – Not suitable for applications involving hig…	savvyrubber.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. These O-rings are black…	– Excellent sealing properties and durability – Suitable for a wide range of applications including hydraulic systems, excavator… – High temperature…	– Not recommended for rotary motion without sufficient lubrication – Limited to static sealing or dynamic applications with good system lubrication -…	www.dmsseals.com
Buna-N 70 Shore A Rubber O-Rings	Nitrile and Viton® O-rings are elastomeric seals used in various industrial applications. Nitrile O-rings are made from a synthetic copolymer of acryl…	– Nitrile O-rings offer superior abrasion and tear resistance, making them suitabl… – Viton® O-rings provide excellent resistance to high temperatur…	– Nitrile O-rings perform poorly in harsh chemicals or outdoor applications and ar… – Viton® O-rings are prone to failure below -15°C in dynamic app…	www.svks-rubberseal.com
Buna n Flexible Bellows from China manufacturer	Buna n Flexible Bellows are made from Nitrile rubber (NBR), a copolymer of butadiene and acrylonitrile. These bellows are designed for applications re…	– Excellent oil resistance, ranking only second to polysulfide rubber, acrylate, a… – High tensile strength and wear resistance. – Good flexibility…	– Not as universally resistant to chemicals, weather, and ozone exposure as Viton… – Temperature range is generally lower than Viton, typically from…	www.silicongasket.com
Buna-N Nitrile O Ring Gasket Cord	Buna-N (Nitrile or NBR) O-Rings are made from a synthetic rubber material, a copolymer of acrylonitrile and butadiene. They are available in standard…	– Excellent resistance to petroleum-based fuels and lubricants – Good wear resistance and compression set resistance – Good short-term resilience and…	– Not recommended for use with brake fluids, acetones, ketones, halogenated hydroc… – Poor flame resistance and ozone resistance – Fair to good chem…	www.seal-china.com
O Ring uggggg Black BUNA NBR Nitrile	Family Pet Medical Center offers a wide range of veterinary services including emergency care, wellness care, preventive care, surgery, dental care, d…	– 24/7 urgent pet care available – State-of-the-art equipment and advanced diagnostic tools – Comprehensive range of services including dental care, c…	– No specific cons mentioned on the website – Limited geographical service area, primarily serving areas around Fort Lauderdal…	www.familypetmedicalcenter.com
O Rings Black Buna-N Rubber	Buna-N (NBR) O-Rings are made from a synthetic rubber material known as nitrile or acrylonitrile-butadiene. They are widely used due to their excellen…	– Excellent resistance to oils and fuels – Good wear resistance and compression set resistance – Good short-term resilience and permeation resistance…	– Not recommended for exposure to brake fluids, ketones, halogenated hydrocarbons,… – Poor flame resistance and ozone resistance – Fair to good chem…	www.svks-rubberseal.com
Nitrile(Buna-N) O-RING	Buna-N (Nitrile or NBR) o-rings are made from a synthetic rubber material known as acrylonitrile-butadiene terpolymer. They are widely used due to the…	– Excellent resistance to petroleum-based fuels, oils, and lubricants – Good wear resistance and compression set resistance – Short-term resilience an…	– Not resistant to weathering, sunlight, and ozone unless special compounds are us… – Incompatible with brake fluids, ketones, halogenated hydrocarb…	www.nosincc.com
What is Buna-n (NBR): Its Benefits and Uses – Hongju Silicone	Buna-N (NBR) is a synthetic rubber copolymer made of acrylonitrile and butadiene. The composition typically includes 34% acrylonitrile, but this can v…	– High oil resistance to petroleum-based oils and fuels, silicone greases, hydraul… – Excellent abrasion and tear resistance, high tensile strength,…	– Susceptible to ozone, ketones, ethers, esters, aromatic hydrocarbons, automotive… – Poor resistance to fire, sunlight, harsh weather, and high tem…	hongjusilicone.com
Nitrile NBR Buna-N 70 O-Rings	Nitrile (Buna-N) O-Rings are made from nitrile butadiene rubber (NBR) and have a durometer hardness of 70 ± 5. They are FDA certified, making them sui…	– High resistance to oils, fuels, and other chemicals – FDA certified for use in food and medical applications – High durability and wear resistance -…	– Not resistant to weathering, sunlight, and ozone – Not compatible with gasoline, benzene, trichlorethylene, ketone, acetone, acetic… – Poor resist…	www.qlrubber.com

Frequently Asked Questions (FAQs)

Frequently Asked Questions About Buna Nitrile Rubber Factories in China

What is Buna Nitrile Rubber and what are its common names?

Buna Nitrile Rubber, often referred to as Nitrile Rubber, NBR, or Buna-N, is a synthetic rubber made from the copolymerization of acrylonitrile and butadiene. It is known for its excellent resistance to oils, fuels, and solvents, making it a popular choice for various industrial applications.

What are the key properties and advantages of NBR O-Rings?

NBR O-Rings offer good mechanical properties, abrasion resistance, and heat resistance. They are highly compatible with fuel, oil, gasoline, and other solvents, although they are not suitable for polar solvents. They have a wide temperature range of -40°C to 120°C and good tensile strength and flexibility.

What are the typical applications of NBR O-Rings and gaskets?

You can find NBR O-Rings and gaskets in a wide range of applications, including fuel tanks, lubricating oil tanks, and systems involving petroleum hydraulic oil, gasoline, silicone oil, and other fluid media. They are also used in static and dynamic sealing applications where resistance to oils and solvents is crucial.

How does the acrylonitrile content affect the properties of NBR?

The acrylonitrile content in NBR significantly affects its properties. Higher acrylonitrile content improves resistance to petrochemical hydrocarbon fuels but reduces low-temperature performance. This balance is important to consider based on the specific application requirements.

What certifications and standards do reputable NBR manufacturers in China adhere to?

Reputable NBR manufacturers in China often adhere to international standards such as ISO 9001, ISO 14001, and other industry-specific certifications like IATF16949. These certifications ensure that the products meet high quality and safety standards, providing you with reliable and durable NBR products.