Are you looking for the best small o-ring factories in China to meet your specific needs? With numerous options available, it can be overwhelming to choose the right one. In this article, we’ll compare some of the top o-ring manufacturers in China, highlighting their strengths, product ranges, and what sets them apart. Let’s dive in and find the perfect fit for your requirements.
O Ring Small 3 lbs (China)
Product Details: The O Ring Small 3 lbs (China) is a fire extinguisher accessory offered by Mega Precision Corporation. It is specifically designed for use in fire extinguishers, ensuring a tight seal to maintain the integrity and functionality of the extinguisher. The product is imported from China.
Pros:
– Ensures a tight seal in fire extinguishers, maintaining their functionality and…
– Imported from China, which may indicate competitive pricing.
Cons:
– Limited information available on the specific materials and durability of the O-…
– No customer reviews or ratings provided on the website to gauge user satisfactio…
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 available in various materials, including nitrile rubber (NBR), fluorocarbon (FKM, FPM), ethylene propylene rubber (EPDM), hydrogenated nitrile (HNBR), polychloroprene rubber (CR), and silicone (VMQ). Each material has specific applications and compatibility: NBR is compatible with oils and gases; FKM is suitable for explosive decompression, oil & gas, and dynamic applications; EPDM is focused on food & beverage, chemical processing, and pharmaceutical applications; HNBR offers good mechanical robustness for automotive and heavy-duty uses; CR is compatible with oils and gases; and silicone is compatible with
PFPE, cold water, and ozone[4].
Pros:
– Seal over a wide range of pressure, temperature, and tolerance.
– Ease of service with no smearing or retightening required.
– No critical torque on tightening, reducing the risk of structural damage.
– Require very little room and are light in weight.
– Can be reused in many cases, an advantage over non-elastic flat seals and crush-…
– Cost-effective.
– Gradual and easily identifiable failure mode.
– High chemical resistance depending on the material chosen.
Cons:
– Not all materials are compatible with all fluids and chemicals (e.g., NBR is not…
– Some materials have limited temperature ranges (e.g., CR up to 150°C/300°F, and…
– May require back-up rings in high-pressure applications to prevent extrusion.
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, and x-rings. The o-rings can be made from various materials such as NBR, FKM (Viton), Silicone, EPDM, HNBR, CR, Aflas, and more. The temperature range for these o-rings varies by material, with Silicone o-rings operating from -70°C to 220°C. The hardness of the o-rings is measured in Shore A, typically ranging from 40 to 90, with Shore A 70 being commonly used. Savvy also offers custom o-ring production with low mold/tooling costs and fast delivery.
Pros:
– Good property and low cost, especially for NBR o-rings which make up about 50% o…
– FKM (Viton) o-rings offer the best comprehensive performance and are widely used…
– Silicone o-rings are FDA-approved, tasteless, non-toxic, and resistant to high t…
– Custom o-ring production available at low mold/tooling costs and fast delivery.
– Wide range of materials and sizes available, including imperial and metric stand…
Cons:
– Low hardness o-rings are prone to peeling, installation damage, extrusion, and p…
– High hardness o-rings can be inconvenient to install.
– Specific materials have limitations; for example, Silicone o-rings typically use…
China O-Ring Kits Suppliers – NNK Oil Seal
Product Details: O-ring kit boxes contain various sizes of O-rings, typically made from materials such as NBR (Nitrile), Silicone, FKM, EPDM, and HNBR. These kits are designed to provide a comprehensive range of O-rings for sealing purposes in different applications, including industrial, mechanical, and hydraulic systems. Each kit usually includes multiple sizes of O-rings, often organized and stored in a hard-wearing box to maintain their condition. The kits are available in various configurations, such as metric, inch, and Japanese sizes, and can be customized to meet specific requirements[1][2][4].
Pros:
– Provides a wide range of O-ring sizes for various applications, ensuring versati…
– Made from high-quality materials to deliver superior sealing performance and dur…
– Customization options available to tailor the kit to specific needs.
– Organized storage helps in easy identification and access to the required O-ring…
– Suitable for high-pressure environments and different types of industrial applic…
Cons:
– May not be suitable for safety-critical applications without premium quality ass…
– The cost can be higher compared to purchasing individual O-rings, although the k…
– Storage and handling require care to maintain the integrity of the O-rings.
China O Rings Manufacturers and Suppliers
Small O-ring Kits
Product Details: Small O-ring Kits are a type of sealing package offered by Hebei Michu Technology Co., Ltd. These kits involve various trimming methods for O-rings, including manual, mechanical, and cold trimming. Manual trimming is done by an operator using a tool to trim the overflow edge step by step. Mechanical trimming improves efficiency and quality, especially for multi-cavity products, with tool matching designed according to product arrangement. Cold trimming involves removing the vulcanized product and waste edge under freezing conditions, a technology jointly developed by Showa carbonic acid of Japan and Zhaoling precision of China.
Pros:
– Improves efficiency and quality through mechanical trimming.
– Customizable with customer logos or branding.
– Offers reliable and timely customer support.
– Specializes in high-quality O-ring products with accumulated experience.
– Competitive pricing for all products.
Cons:
– Manual trimming can be time-consuming and less accurate compared to mechanical t…
– Cold trimming requires specific freezing conditions, which may not be readily av…
Xiamen Xlong Seal Co.,Ltd 厦门旭隆密封件有限公司
O-Ring Kits – China Manufacturer & Supplier – Savvy
Product Details: Savvy supplies various o-ring kits, including metric and imperial size kits. The kits can be made from materials such as NBR, FKM, and PTFE. Each kit typically contains 382 or 386 o-rings in 30 different sizes. O-ring splicing kits are also available, which include 9 or 5 o-ring cords of different cross-sections, a splicing jig, a cutting tool, and adhesives. These kits allow users to fabricate o-rings for custom sizes and are suitable for temporary emergency use. The kits are packaged in a plastic box for convenience.
Pros:
– Wide range of o-ring sizes and materials available
– Customizable kits to meet specific needs
– Convenient packaging with necessary tools for splicing
– Suitable for emergency and temporary repairs
– Affordable options, especially for nitrile rubber kits
Cons:
– Spliced o-rings have relatively large tolerances
– May require multiple spliced o-rings to achieve the desired size
– Not recommended for non-emergency use due to potential for lower sealing perform…
Viton O Ring Suppliers, Manufacturers, Factory
Top 10 O-ring Manufacturers and Suppliers in China (2024)
Product Details: Hongju produces high-quality silicone rubber O-rings and high-temperature O-ring seals. These O-rings are used in various applications such as engines, pumps, cylinders, connectors, and valves. The company offers both standard sizes and custom-made O-rings to meet specific customer needs. The manufacturing process includes design, tool making, color mixing, compression molding, and quality inspection. Hongju adheres to ISO 3601 standards for dimensions and tolerances and uses high-quality raw materials. The company also provides options for using liquid silicone rubber and offers different hardness levels with a tolerance of plus or minus 3-5A[1].
Pros:
– High-quality silicone rubber O-rings and high-temperature O-ring seals
– Custom-made O-rings available to meet specific customer needs
– Strict quality control and adherence to ISO 3601 standards
– Use of high-quality raw materials and advanced equipment
– Wide range of applications including engines, pumps, and valves
– Options for different hardness levels and materials such as liquid silicone rubb…
– Fast production and shipping times
Cons:
– Importing from China may involve longer shipping times compared to local supplie…
– Quality inspection and testing may require additional time and resources
– Custom orders may have minimum order quantities (MOQ) requirements
Comparison Table
| Company | Product Details | Pros | Cons | Website |
|---|---|---|---|---|
| O Ring Small 3 lbs (China) | The O Ring Small 3 lbs (China) is a fire extinguisher accessory offered by Mega Precision Corporation. It is specifically designed for use in fire ext… | – Ensures a tight seal in fire extinguishers, maintaining their functionality and… – Imported from China, which may indicate competitive pricing. | – Limited information available on the specific materials and durability of the O-… – No customer reviews or ratings provided on the website to gaug… | www.megaprecisioncorp.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 available in various materi… | – Seal over a wide range of pressure, temperature, and tolerance. – Ease of service with no smearing or retightening required. – No critical torque on… |
| 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, and x-rings. The o-rings can b… | – Good property and low cost, especially for NBR o-rings which make up about 50% o… – FKM (Viton) o-rings offer the best comprehensive performance a… | – Low hardness o-rings are prone to peeling, installation damage, extrusion, and p… – High hardness o-rings can be inconvenient to install. – Specif… | savvyrubber.com |
| China O-Ring Kits Suppliers – NNK Oil Seal | O-ring kit boxes contain various sizes of O-rings, typically made from materials such as NBR (Nitrile), Silicone, FKM, EPDM, and HNBR. These kits are… | – Provides a wide range of O-ring sizes for various applications, ensuring versati… – Made from high-quality materials to deliver superior sealing p… | – May not be suitable for safety-critical applications without premium quality ass… – The cost can be higher compared to purchasing individual O-rin… | www.nokcn-seals.com |
| China O Rings Manufacturers and Suppliers | www.svks-rubberseal.com | |||
| Small O-ring Kits | Small O-ring Kits are a type of sealing package offered by Hebei Michu Technology Co., Ltd. These kits involve various trimming methods for O-rings, i… | – Improves efficiency and quality through mechanical trimming. – Customizable with customer logos or branding. – Offers reliable and timely customer s… | – Manual trimming can be time-consuming and less accurate compared to mechanical t… – Cold trimming requires specific freezing conditions, which may… | www.hbmichu.com |
| Xiamen Xlong Seal Co.,Ltd 厦门旭隆密封件有限公司 | www.oring-seal.com | |||
| O-Ring Kits – China Manufacturer & Supplier – Savvy | Savvy supplies various o-ring kits, including metric and imperial size kits. The kits can be made from materials such as NBR, FKM, and PTFE. Each kit… | – Wide range of o-ring sizes and materials available – Customizable kits to meet specific needs – Convenient packaging with necessary tools for splici… | – Spliced o-rings have relatively large tolerances – May require multiple spliced o-rings to achieve the desired size – Not recommended for non-emerge… | savvyrubber.com |
| Viton O Ring Suppliers, Manufacturers, Factory | www.seal-china.com | |||
| Top 10 O-ring Manufacturers and Suppliers in China (2024) | Hongju produces high-quality silicone rubber O-rings and high-temperature O-ring seals. These O-rings are used in various applications such as engines… | – High-quality silicone rubber O-rings and high-temperature O-ring seals – Custom-made O-rings available to meet specific customer needs – Strict qual… | – Importing from China may involve longer shipping times compared to local supplie… – Quality inspection and testing may require additional time and… | hongjusilicone.com |
Frequently Asked Questions (FAQs)
Frequently Asked Questions About O-Ring Small Factories in China
What materials do Chinese o-ring factories typically use?
Chinese o-ring factories use a variety of materials, including nitrile rubber (NBR), ethylene propylene diene monomer (EPDM), silicone, VITON (FKM), and hydrogenated nitrile butadiene rubber (HNBR). These materials are chosen based on their compatibility with different chemicals and their performance under various conditions.
Can I customize o-rings according to my specifications?
Yes, you can customize o-rings according to your specifications. Many Chinese o-ring manufacturers, such as Dongguan Hongju Silicone Rubber Products Co., Ltd. and Xiamen Flying Silicone Rubber Co., Ltd., offer OEM and ODM services. This means you can provide your design drawings, and they will help you turn your ideas into mass production.
What is the minimum order quantity (MOQ) for o-rings from Chinese factories?
The minimum order quantity (MOQ) for o-rings can vary depending on the factory. Some factories have low MOQs, such as 10-100 pieces, while others may require larger orders, typically ranging from 500 to 5,000 pieces. It’s best to check with the specific factory you’re interested in to determine their MOQ.
Do Chinese o-ring factories provide quality certifications and testing?
Yes, many Chinese o-ring factories provide quality certifications and testing. For example, factories like Woma Rubber Products Co., Ltd. and Shangrao Ruichen Sealing Co., Ltd. are certified with ISO 9001, ISO 14001, and IATF16949. They also have certified laboratories to develop and identify compounds that meet specific market requirements.
How do I ensure timely and cost-effective delivery of o-rings from China?
To ensure timely and cost-effective delivery, look for factories that offer prompt delivery services and have favorable shipping arrangements. Some factories, like Savvy Rubber, use door-to-door courier services that provide the most favorable discounts, reducing your express costs. Additionally, check if the factory has a stock of common sizes to expedite your order.