Are you looking for the best HNBR o-ring factories in China? With so many options available, choosing the right one can be overwhelming. In this article, we’ll compare the top HNBR o-ring manufacturers in China, highlighting their strengths, product offerings, and what sets them apart. Let’s dive in and find the perfect fit for your needs.

Custom HNBR O-Ring Manufacturer in China

Product Details: HNBR (Hydrogenated Nitrile Butadiene Rubber) O-rings are made by hydrogenating the double bonds in nitrile’s butadiene segments, enhancing their heat, ozone, and chemical resistance. They 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, as well as diluted acids, bases, and salt solutions. The ACN content can vary from 17% to 49%, affecting low-temperature properties and resistance to fuels and polar lubricants. Standard HNBRs typically have 36% ACN content.

Pros:
– Superior heat, ozone, and chemical resistance
– Excellent resistance to petroleum-based oils and fuels
– Good performance with aliphatic hydrocarbons, vegetable oils, silicone oils and…
– Resistant to ethylene glycol, water, and steam up to 300°F
– Resistant to diluted acids, bases, and salt solutions
– Can be used in demanding applications such as automotive and industrial settings
– Better low-temperature properties with lower ACN content

Cons:
– Not suitable for use with chlorinated hydrocarbons, ketones, ethers, esters, and…
– Sulfur-curing reduces heat resistance and causes an inferior compression set
– Higher ACN content results in inferior low-temperature properties

HNBR O-rings-Dongguan Lanhe Electronics

Product Details: HNBR O-rings are made from hydrogenated nitrile butadiene rubber, specifically designed to provide superior temperature and fuel resistance compared to traditional NBR materials. They are available in various durometers (70, 80, 90 Shore A) and colors (black, green, blue, brown, rust, gray). The service temperature range is from -40°C to 150°C (-40°F to 300°F), with some special compounds handling up to 160°C. HNBR O-rings are compatible with petroleum-based oils, fuels, aliphatic hydrocarbons, vegetable oils, silicone oils and greases, ethylene glycol, water, and steam.

Pros:
– Superior heat, ozone, and chemical resistance
– Excellent abrasion, wear, and compression set resistance
– Good resistance to many petroleum oils/greases, H2S, hydraulic fluids, alcohol,…
– Compatible with Freon R-134a and compressor lubricant oil
– Enhanced chemical compatibility with new automotive fuels
– High tensile strength and resistance to oils and chemicals
– Suitable for high dynamic loads and modern coolant systems

Cons:
– Not compatible with chlorinated hydrocarbons, polar solvents (ketones, esters, e…
– Limited resistance to ozone, direct sunlight, UV, weathering, and certain polar…
– Performance in low temperature applications decreases as acrylonitrile content (…

China HNBR O Rings Manufacturer,Supplier

Product Details: HNBR O-rings are made from a synthetic polymer obtained by saturating the double bonds in nitrile’s butadiene segments with hydrogen. This process enhances their heat, ozone, chemical resistance, and mechanical characteristics. They are available in 70, 80, and 90 durometers and have a service temperature range from -40°C to 150°C (or up to 160°C for special compounds). Standard HNBRs typically have 36% Acrylonitrile (ACN) content, which improves resistance to fuels and polar lubricants. They are available in various colors including black, green, blue, brown, rust, and gray.

Pros:
– Superior heat, ozone, and chemical resistance compared to standard Nitrile.
– Excellent mechanical characteristics and abrasion resistance.
– Suitable for use with petroleum-based oils and fuels, aliphatic hydrocarbons, ve…
– Resistant to dilute acids, bases, and salt solutions.
– Ideal for high dynamic loads and modern coolant systems using R134a.
– Better durability and compression set resistance compared to NBR O-rings.

Cons:
– Not compatible with chlorinated hydrocarbons, ketones, ethers, esters, and stron…
– Higher ACN content reduces low-temperature properties.
– Sulfur-curing can reduce heat resistance and cause an inferior compression set.

HNBR Rubber O Ring

Product Details: HNBR O-rings are made from a synthetic polymer obtained by saturating the double bonds in nitrile’s butadiene segments with hydrogen. This process enhances the heat, ozone, chemical resistance, and mechanical characteristics of HNBR over standard Nitrile. HNBR O-rings are available in 70, 80, and 90 durometers and have a service temperature range from -40°C to 150°C (or up to 160°C for some special compounds). They are compatible with petroleum-based oils and fuels, aliphatic hydrocarbons, vegetable oils, silicone oils and greases, ethylene glycol, water, and steam (up to 300°F), and diluted acids, bases, and salt solutions.

Pros:
– Superior heat, ozone, and chemical resistance
– Enhanced mechanical characteristics over standard Nitrile
– Good abrasion and wear resistance
– Excellent compression set durability
– Compatible with a wide range of fluids including petroleum-based oils, fuels, an…
– Suitable for high dynamic loads and modern coolant systems (e.g., R134a)
– Available in various durometers (70, 80, 90 Shore A)

Cons:
– Not compatible with chlorinated hydrocarbons, ketones, ethers, esters, and stron…
– Inferior low-temperature properties with higher Acrylonitrile (ACN) content
– Reduced heat resistance if sulfur-cured
– Not suitable for use with polar solvents, aromatic or chlorinated hydrocarbons,…

HNBR o ring

HNBR O Ring 24*3.1mm Manufacturers and Suppliers China

Product Details: The HNBR O Ring 24*3.1mm is made from Hydrogenated Nitrile Butadiene Rubber (HNBR). It has an inner diameter of 24 mm and a cross-section of 3.1 mm. HNBR offers excellent heat resistance up to 150 °C and ozone resistance, while maintaining the good oil resistance of NBR. It is produced by companies like Tianjin SWKS Technology & Development Co., Ltd.

Pros:
– Excellent heat resistance up to 150 °C
– Good ozone resistance
– Maintains the excellent oil resistance of NBR
– Low rigidity and good process performance
– Can be used with more fillers due to low density
– Economically more favorable compared to fluororubber

Cons:
– Relatively expensive compared to traditional NBR
– Lower unit volume but still more costly than some other materials

Custom O Ring Manufacturing in China with Quick Tooling …

Wholesale HNBR O-Rings with Good Price

Product Details: HNBR (Hydrogenated Nitrile Butadiene Rubber) O-Rings are made by hydrogenating the double bonds in nitrile’s butadiene segments. They are available in 70, 80, and 90 durometers and offer superior heat, ozone, and chemical resistance compared to standard NBR. HNBR O-Rings 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 can also withstand diluted acids, bases, and salt solutions.

Pros:
– Excellent resistance to oils and chemicals
– Superior heat resistance up to 300°F (150°C)
– Good resistance to compression set and abrasion
– Compatible with various fluids including Freon R-134a and compressor lubricant o…
– Enhanced chemical compatibility with new automotive fuels

Cons:
– Not suitable for use with chlorinated hydrocarbons, ketones, ethers, esters, and…
– Limited resistance to ozone, direct sunlight, UV, and weathering
– Inferior performance with aromatic fuels, glycol-based brake fluids, polar solve…

HNBR O Ring Seal OEM Manufacturer China

Product Details: GS# 5 Sealant is a general-purpose butyl tape that remains permanently flexible under expansion and contraction from joint movements. It has excellent sound and vibration absorption, is resistant to mildew and most soil chemicals, and withstands extreme temperature fluctuations. It is typically used in automotive sound deadening & body joint/seam sealing, telecommunications, window glazing, metal roofing, trailer & RV, pipe & vault, and HVAC applications.

Pros:
– Remains permanently flexible under joint movements
– Excellent sound and vibration absorption
– Resistant to mildew and most soil chemicals
– Withstands extreme temperature fluctuations

Cons:
– No specific cons mentioned in the provided sources
– May not be suitable for all types of sealing applications

HNBR O Ring China Rubber O-Ring Seal

Product Details: HNBR O-rings are made from a synthetic polymer obtained by saturating the double bonds in nitrile’s butadiene segments with hydrogen. This process enhances their heat, ozone, chemical resistance, and mechanical characteristics. They are available in 70, 80, and 90 durometers and have a service temperature range from -40°C to 150°C (-40°F to 300°F). HNBR O-rings are compatible with petroleum-based oils and fuels, aliphatic hydrocarbons, vegetable oils, silicone oils and greases, ethylene glycol, water, and steam up to 300°F, as well as diluted acids, bases, and salt solutions.

Pros:
– Superior heat, ozone, and chemical resistance
– Excellent mechanical characteristics and abrasion resistance
– Good compression set resistance
– Compatible with a wide range of fluids including petroleum-based oils, fuels, an…
– Suitable for high dynamic loads and modern coolant systems like R134a
– Enhanced low-temperature properties depending on acrylonitrile content

Cons:
– Not compatible with chlorinated hydrocarbons, ketones, ethers, esters, and stron…
– Inferior performance in polar solvents and aromatic fuels
– Reduced heat resistance if sulfur-cured
– Higher acrylonitrile content reduces low-temperature properties

Comparison Table

Frequently Asked Questions (FAQs)

Frequently Asked Questions About O-Ring HNBR Factories in China

What materials do Chinese HNBR O-ring factories typically use?

Chinese HNBR O-ring factories often use Hydrogenated Nitrile Butadiene Rubber (HNBR) as the primary material. HNBR is chosen for its excellent resistance to heat, oil, and chemicals, making it ideal for applications in the automotive, aerospace, and industrial sectors. This material also offers good mechanical strength and durability.

What are the common applications of HNBR O-rings produced in China?

HNBR O-rings produced in China are widely used in various industries due to their robust properties. You can find them in automotive systems, such as fuel injection and transmission seals, as well as in aerospace and industrial equipment where high temperature and chemical resistance are crucial. They are also used in oil and gas, and other heavy-duty applications.

Do Chinese HNBR O-ring factories offer customization options?

Yes, many Chinese HNBR O-ring factories offer customization options to meet your specific needs. You can customize the design, size, color, and even the packaging and logo of the O-rings. Companies like Dongguan Hongju Silicone Rubber Products Co., Ltd. and Xiamen Flying Silicone Rubber Co., Ltd. provide OEM and ODM services, allowing you to bring your design drawings to life.

What are the typical minimum order quantities (MOQs) for HNBR O-rings in China?

The minimum order quantities (MOQs) for HNBR O-rings in China can vary depending on the manufacturer. However, you can often find MOQs ranging from 10 to 1,000 pieces. Some manufacturers, like Xingtai Baifu Seal Co., Ltd., may have lower MOQs, while others might require larger orders.

Do Chinese HNBR O-ring factories adhere to international quality standards?

Yes, many Chinese HNBR O-ring factories adhere to international quality standards. These factories are often certified with ISO 9001, ISO 14001, and other relevant certifications like IATF16949 and ISO 13485. This ensures that the products meet global quality and safety standards, providing you with reliable and high-quality HNBR O-rings.