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

China O-Ring Kits Suppliers – NNK oil seal

Product Details: The Universal Type O-Ring Kit Box 30 size is a professional-quality assortment of O-rings. It includes 382 pieces of O-rings in 30 of the most popular sizes, suitable for both inch and metric measurements. The O-rings are made from commercial-grade nitrile butadiene rubber (NBR) and fluoroelastomer (FKM) materials, offering oil, chemical, and high-pressure resistance. The kit is housed in a practical resealable plastic case and is available in various colors such as black, brown, red, and clear. The hardness of the O-rings ranges from 60-90 Shore A, and they can operate in temperatures from -40°C to 260°C. The kit is

certified with ISO9001/TS16949 and meets ASTM D 2000 standards. It is applicable for use in machines, excavators, and other equipment.

Pros:
– High-quality materials (NBR and FKM) providing excellent oil and chemical resist…
– Wide range of sizes (30 sizes) to fit various applications
– Operates over a broad temperature range (-40°C to 260°C)
– Meets international standards (ISO9001/TS16949 and ASTM D 2000)
– Suitable for both professional and home use
– Thick-walled construction for maximum protection and durability
– UV resistant and suitable for use with liquids such as oil

Cons:
– No specific cons mentioned, but users need to ensure the correct size and materi…
– Requires proper installation and maintenance to ensure long-term sealing perform…

O-Ring Kits – China Manufacturer & Supplier – Savvy

Product Details: Savvy supplies o-ring kits made from NBR, FKM, and PTFE rubber, which are the most popular materials in the market. Each kit contains 382 or 386 o-rings in 30 sizes, available in both imperial and metric standards. The kits are designed to meet various customer needs and can be customized if required. O-ring splicing kits are also available, which include o-ring cord, a splicing jig, a cutting tool, and adhesives, allowing users to fabricate o-rings for emergency or custom needs.

Pros:
– Wide range of o-ring sizes and materials available
– Customizable kits to meet specific customer needs
– Convenient o-ring splicing kits for on-the-job repairs
– High-quality o-rings with accurate sealing performance
– Reasonable prices, especially for NBR material

Cons:
– Spliced o-rings have relatively large tolerances and may not be as precise as mo…
– Higher cost for FKM material compared to NBR
– Requires some skill and time to splice o-rings manually

FKM O Rings, China NBR O Ring supplier

O-Rings | China – Products | Parker NA

Product Details: Parker O-rings are circular sealing elements with circular cross-sections, primarily used in static applications. They are specified by the inside diameter and come in various materials such as Nitrile (NBR), Fluorocarbon (FKM, FPM), Ethylene Propylene (EPDM), Hydrogenated Nitrile (HNBR), Silicone (VMQ), and others. Each material has specific applications and compatibility with different fluids and environments. For example, FKM O-rings are excellent for oil & gas applications and are compatible with oils, gases, hydraulic oil, and fuels. EPDM O-rings are focused on food & beverage, chemical processing, pharmaceutical, and general industrial applications. HNBR O-rings offer good mechanical robustness for automotive, heavy

duty, and transportation applications[5].

Pros:
– Wide range of materials to suit various applications and environments
– High compatibility with different fluids such as oils, gases, hydraulic oils, an…
– Good mechanical robustness and durability in different industries
– Ease of service and no smearing or retightening required
– Cost-effective and lightweight
– Gradual failure mode that is easily identifiable

Cons:
– Specific materials have limitations in certain environments (e.g., NBR is not co…
– Some materials may have poor cold flexibility or short-term rebound (e.g., Butyl…
– May require careful selection to ensure compatibility with the specific applicat…
– Can be affected by ozone, weather, and atmospheric aging in some cases

O RING SET BOX – China Supplier, Wholesale

Product Details: The O-Ring Set from BOSS Sealing Solutions includes various o-ring sizes and materials. It is designed for sealing applications, particularly in hydraulic equipment and machinery such as excavators. The kit may include o-rings made from NBR70 and NBR90 materials, which are common for their durability and resistance to hydraulic fluids. The set typically includes multiple sizes to fit different boss tube fittings.

Pros:
– Includes multiple o-ring sizes to cover various sealing needs
– Made from durable materials like NBR70 and NBR90
– Suitable for hydraulic equipment and machinery
– Provides a reliable seal for straight-thread tube fittings

Cons:
– Specific product details and exact contents may vary without direct access to th…
– No clear information on the number of o-rings included or the specific sizes
– No details on any additional tools or accessories included in the kit

O Ring Kit Box – Hydraulic Breaker Seal Kit

Product Details: The O-Ring Kit Box typically includes a variety of O-rings in different sizes and materials. It often features 30 of the most popular sizes, with materials such as NBR, FKM, EPDM, and silicone. These kits are designed for industrial applications, including machines and excavators, and are known for their oil, chemical, and high-pressure resistance. The kits usually come in resealable plastic cases and are available in various colors. They meet industry standards such as ISO9001/TS16949 and ASTM D 2000. The temperature range for these O-rings can be from -40°C to 260°C, depending on the material[1][2][4].

Pros:
– Wide range of sizes and materials to suit various applications
– High-quality materials with excellent resistance to oils, chemicals, and high pr…
– Convenient and portable resealable plastic cases
– Meets industry standards for quality and reliability
– Suitable for both imperial and metric sizes

Cons:
– May not be suitable for safety-critical applications such as automotive
– Limited availability of certain sizes or materials in standard kits
– Custom orders may have longer lead times

China O-ring Kit Manufacturers, Suppliers

Product Details: O-ring kits are comprehensive sets of o-rings designed to meet various sealing needs across different industries. These kits typically include a variety of o-ring sizes and materials, such as nitrile, fluorocarbon, and polyacrylate, to ensure compatibility with different fluids, temperatures, and chemical environments. The kits often adhere to standardized dimensional parameters like AS568 and ISO 3601, ensuring precise fit and optimal performance. They are used in static and dynamic sealing applications, including engines, transmissions, hydraulic systems, and more.

Pros:
– Wide range of sizes and materials to suit different applications
– Compliance with industry standards (AS568, ISO 3601) for precise fit
– Suitable for various fluids, temperatures, and chemical environments
– Convenient packaging for easy access and storage
– Can be customized to meet specific performance criteria

Cons:
– Material limitations, such as lower water compatibility or cold flexibility in c…
– Requires proper installation and maintenance to ensure seal integrity
– May have limited shelf life depending on storage conditions
– Can be affected by unknown factors or circumstances in actual use

O Ring Kit – China Supplier, Wholesale

Product Details: The provided URL does not lead to a specific product page, but based on similar products listed on the website, here are some general details. O-ring kits are typically used for sealing applications in various machinery, including excavators and hydraulic cylinders. They are available in different materials such as NBR, ACM, FKM, and HNBR. These kits often include a variety of o-ring sizes and shapes to fit different machine models and standards (e.g., Japanese Standard). Key properties include high pressure resistance, wear resistance, and high temperature tolerance.

Pros:
– High pressure resistance and wear resistance, making them durable and long-lasti…
– Available in various materials to suit different application needs.
– Includes multiple sizes and shapes to fit various machine models.
– High temperature tolerance for use in demanding environments.

Cons:
– Specific product details may vary, and the correct kit must be selected based on…
– May require technical knowledge to choose the correct o-ring sizes and materials…
– Storage and handling must be careful to maintain the integrity of the o-rings.

China O-Ring Kits Manufacturer | Vanzon

Product Details: O-ring kits are comprehensive sets of O-rings in various sizes, materials, and durometers. They are designed for maintenance applications, eliminating the guesswork in part selection. Kits can include standard O-rings, metric O-rings, square rings, X-rings, backup rings, and more. Materials include nitrile, Viton™/fluorocarbon, EPDM, silicone, and hydrogenated nitrile, each with specific temperature ranges and chemical resistance properties. Kits can be customized with specific sizes, materials, and durometers to meet particular needs.

Pros:
– Convenient and time-saving by providing a wide range of O-ring sizes and materia…
– Customizable to fit specific application requirements.
– Includes various materials suitable for different temperature ranges and chemica…
– Often comes with additional tools such as splicing tools and extraction tool set…
– Meets or exceeds OEM specifications for reliability and performance.

Cons:
– Can be expensive, especially for comprehensive kits with a wide range of sizes a…
– Storage and organization of the kit can be challenging due to the large number o…
– May include sizes or materials that are not immediately needed, potentially wast…

O Ring Kit

Product Details: The O-ring kit is a common rubber sealing part used in various fields such as automotive, hydraulic systems, aerospace, and excavators. The kit contains multiple sizes of O-rings, available in sets of eight, twelve, fifteen sizes, etc., allowing users to try different sizes and store them for later use. The O-rings are made from different rubber materials including NBR, FKM, SILICON, and FFKM, each with specific temperature ranges and hardness levels. Customized services are also available, including custom sizes, colors, and product labels.

Pros:
– Convenient for trying multiple sizes at once
– Suitable for various working environments due to different rubber materials
– Customization options for size, color, and product labels
– Wide range of applications in different industries

Cons:
– Users may need to purchase a larger set than needed if specific sizes are not av…
– Different materials have varying temperature and hardness limits which may requi…

Comparison Table

Company	Product Details	Pros	Cons	Website
China O-Ring Kits Suppliers – NNK oil seal	The Universal Type O-Ring Kit Box 30 size is a professional-quality assortment of O-rings. It includes 382 pieces of O-rings in 30 of the most popular…	– High-quality materials (NBR and FKM) providing excellent oil and chemical resist… – Wide range of sizes (30 sizes) to fit various applications – O…	– No specific cons mentioned, but users need to ensure the correct size and materi… – Requires proper installation and maintenance to ensure long-te…	www.nokcn-seals.com
O-Ring Kits – China Manufacturer & Supplier – Savvy	Savvy supplies o-ring kits made from NBR, FKM, and PTFE rubber, which are the most popular materials in the market. Each kit contains 382 or 386 o-rin…	– Wide range of o-ring sizes and materials available – Customizable kits to meet specific customer needs – Convenient o-ring splicing kits for on-the-…	– Spliced o-rings have relatively large tolerances and may not be as precise as mo… – Higher cost for FKM material compared to NBR – Requires some s…	savvyrubber.com
FKM O Rings, China NBR O Ring supplier				www.o-ringsseals.com
O-Rings	China – Products	Parker NA	Parker O-rings are circular sealing elements with circular cross-sections, primarily used in static applications. They are specified by the inside dia…	– Wide range of materials to suit various applications and environments – High compatibility with different fluids such as oils, gases, hydraulic oils…
O RING SET BOX – China Supplier, Wholesale	The O-Ring Set from BOSS Sealing Solutions includes various o-ring sizes and materials. It is designed for sealing applications, particularly in hydra…	– Includes multiple o-ring sizes to cover various sealing needs – Made from durable materials like NBR70 and NBR90 – Suitable for hydraulic equipment…	– Specific product details and exact contents may vary without direct access to th… – No clear information on the number of o-rings included or the…	www.boss-sealing.com
O Ring Kit Box – Hydraulic Breaker Seal Kit	The O-Ring Kit Box typically includes a variety of O-rings in different sizes and materials. It often features 30 of the most popular sizes, with mate…	– Wide range of sizes and materials to suit various applications – High-quality materials with excellent resistance to oils, chemicals, and high pr……	– May not be suitable for safety-critical applications such as automotive – Limited availability of certain sizes or materials in standard kits – Cust…	www.sealskit.com
China O-ring Kit Manufacturers, Suppliers	O-ring kits are comprehensive sets of o-rings designed to meet various sealing needs across different industries. These kits typically include a varie…	– Wide range of sizes and materials to suit different applications – Compliance with industry standards (AS568, ISO 3601) for precise fit – Suitable f…	– Material limitations, such as lower water compatibility or cold flexibility in c… – Requires proper installation and maintenance to ensure seal in…	www.kodaseal.com
O Ring Kit – China Supplier, Wholesale	The provided URL does not lead to a specific product page, but based on similar products listed on the website, here are some general details. O-ring…	– High pressure resistance and wear resistance, making them durable and long-lasti… – Available in various materials to suit different application n…	– Specific product details may vary, and the correct kit must be selected based on… – May require technical knowledge to choose the correct o-ring s…	www.rubberoilseal.com
China O-Ring Kits Manufacturer	Vanzon	O-ring kits are comprehensive sets of O-rings in various sizes, materials, and durometers. They are designed for maintenance applications, eliminating…	– Convenient and time-saving by providing a wide range of O-ring sizes and materia… – Customizable to fit specific application requirements. – Inclu…	– Can be expensive, especially for comprehensive kits with a wide range of sizes a… – Storage and organization of the kit can be challenging due to…
O Ring Kit	The O-ring kit is a common rubber sealing part used in various fields such as automotive, hydraulic systems, aerospace, and excavators. The kit contai…	– Convenient for trying multiple sizes at once – Suitable for various working environments due to different rubber materials – Customization options f…	– Users may need to purchase a larger set than needed if specific sizes are not av… – Different materials have varying temperature and hardness limi…	www.hbmichu.com

Frequently Asked Questions (FAQs)

Frequently Asked Questions About O-Ring Set Factories in China

What types of 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 or Viton), Silicone (SIL or VMQ), Ethylene Propylene Diene Monomer (EPDM), and Hydrogenated Nitrile (HNBR). Each material has its own unique properties and is suited for different applications, such as high temperature, chemical resistance, or food and medical uses.

What are the standard sizes and specifications for o-rings produced in China?

O-rings in China are manufactured according to various international standards, including AS568 for the USA, BS1516 for the UK, DIN 3771 for Germany, JIS B 2401 for Japan, ISO 3601 for international use, and GB 3452.1 for China. These standards ensure that o-rings have consistent dimensions, such as inside diameter (ID), outside diameter (OD), and cross-section (CS), making them compatible with global equipment.

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

Yes, you can customize o-rings to fit your specific requirements. Many Chinese o-ring manufacturers offer OEM and ODM services, allowing you to design and produce o-rings with custom sizes, shapes, and materials. They also provide services such as free samples for testing and low minimum order quantities (MOQs) to accommodate smaller orders.

What kind of quality assurance can I expect from Chinese o-ring factories?

Chinese o-ring factories often adhere to strict quality standards. Many are certified with ISO 9001, ISO 14001, IATF16949, and ISO 13485, ensuring that the products meet international quality and safety standards. Additionally, these factories conduct thorough testing, including machine testing, to guarantee that the o-rings are free from defects and have the required elasticity and sealing performance.

How do Chinese o-ring factories handle delivery and shipping?

Chinese o-ring factories typically offer efficient delivery and shipping services. They often have partnerships with courier companies to provide door-to-door delivery at favorable rates. Some manufacturers also offer prompt delivery for prototypes and can arrange for shipment of both standard and custom o-ring orders quickly, ensuring that you receive your products in a timely manner.