Are you looking for the best o-ring manufacturers in China to meet your specific needs? With numerous options available, choosing the right one can be overwhelming. In this article, we’ll compare some of China’s top o-ring factories, highlighting their strengths, product ranges, and what sets them apart. Let’s dive in and find the perfect fit for your business.
O-ring size (no tooling charge)
Product Details: Precision Polymer Engineering (PPE) offers a wide range of O-ring sizes and types, including AS 568, DIN 11864, and RJT O-rings. These O-rings are available in various materials such as FFKM, FKM, EPDM, and Silicone, with certifications including FDA, USP, and 3-A 18-03. The O-rings can be fully molded, ensuring tighter cross-section tolerances and no weak spots at joints, and are manufactured in cleanroom environments for critical applications.
Pros:
– Fully molded O-rings eliminate weak spots at joints, reducing the risk of premat…
– Tighter cross-section tolerances ensure a proper fit in critical equipment.
– Available in high-performance elastomer grades with excellent chemical resistanc…
– Manufactured in cleanroom environments to minimize contamination.
– Custom tooling available for non-standard sizes, providing cost-effective soluti…
Cons:
– Higher cost compared to jointed or spliced O-rings due to the advanced manufactu…
– Limited availability of certain sizes and materials without custom tooling.
– May require specific handling and storage to maintain their performance characte…
Ring Size Conversion Chart – International – Après Jewelry
Product Details: The ring size conversion chart provides a comprehensive guide to convert ring sizes between different international standards, including US, UK, Germany, France, Japan, and others. The chart includes inner diameters in millimeters and corresponding ring sizes for each country. It helps users determine their ring size accurately and convert it to various international sizes. Users can measure their ring size at home using a thin strip of paper or thread and then refer to the chart for conversions.
Pros:
– Allows accurate conversion between different international ring size standards.
– Includes inner diameters in millimeters for precise measurements.
– Users can measure their ring size at home using simple methods.
– Comprehensive chart covers multiple countries and sizing systems.
– Helpful for both men and women in determining their ring sizes.
Cons:
– Ring sizes can be affected by factors like finger shape, temperature, and band w…
– Some ring styles or materials cannot be resized, making accurate sizing crucial.
– Multiple measurements may be necessary to account for minor variations in fit.
O-Rings | China – Products | Parker NA
Product Details: Parker O-rings are circular sealing elements with circular cross-sections, mainly 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 type is tailored for specific applications: FKM O-rings are excellent for explosive decompression, oil & gas, and dynamic applications; EPDM O-rings are focused on food & beverage, chemical processing, and pharmaceutical applications; HNBR O-rings offer good mechanical robustness for automotive and heavy-duty applications; and Silicone O-rings are compatible with PFPE, cold water, and ozone[5].
Pros:
– Wide range of materials to suit various applications, including high temperature…
– Ease of service with no smearing or retightening required, and no critical torqu…
– Compact and lightweight, requiring minimal space, and often reusable.
– Gradual failure mode that is easily identifiable, allowing for timely maintenanc…
– Cost-effective compared to other sealing solutions.
Cons:
– Each material has specific compatibility limitations; for example, NBR is not co…
– Some materials, like Butyl rubber (IIR), have poor short-term rebound and limite…
– EPDM and NBR O-rings may not perform well in high-temperature applications or wi…
– Silicone O-rings have limited chemical resistance and are not suitable for appli…
Rubber o-ring sizes
Product Details: Rubber O-rings are available in a wide range of sizes. The internal diameter (ID) can range from 0.5 mm to 2000.00 mm, and the cross-section (CS) diameter can range from 0.3 mm to 15.00 mm. These O-rings follow the American standard AS568 series. The sizes are standardized to ensure compatibility and ease of selection for various applications.
Pros:
– Wide range of sizes available to fit different applications.
– Standardized sizes according to the American AS568 series for consistency and co…
– Versatile in terms of material options, including Nitrile/NBR, EPDM, VITON, and…
Cons:
– No specific details on the website regarding the durability or lifespan of the O…
– No information provided on the pricing or availability of the O-rings.
International Ring Size Conversion Chart: US, Australia, …
Product Details: To measure your ring size, you can use several methods. The most accurate way is to use an adjustable ring sizer, which can be purchased online or requested from some jewelry websites. This sizer typically includes multiple plastic rings of different sizes that you try on until you find the one that fits best. Another method is the string or tape measure technique, where you wrap a string or tape around the base of your finger, mark the overlap, and measure the length to match it with a ring size chart. You can also use a printable ring size chart
and place an existing ring on it to find the matching size[1][3][5].
Pros:
– Accurate measurement with adjustable ring sizers
– Convenient methods like string or tape measure and printable charts
– No need to visit a jewelry store for initial sizing
– Options for temporary and non-permanent size adjustments like sizing beads, spri…
Cons:
– Manual methods may require careful measurement to avoid inaccuracies
– Printable charts need to be printed at the correct scale for accuracy
– Temporary size adjustments may need periodic checks and replacements
French R O-Rings, AS 568A O-Rings, JIS …
Product Details: Revata Engineering offers French R series O-Rings in various materials including fluorocarbon, NBR, EPDM, and Silicone. These O-Rings are available in standard, non-standard, and metric sizes. They are designed for sealing applications in hydraulic, pneumatic, and other industries. The materials include Viton®, Kalrez®, Teflon®, and other special formulated compounds for unique applications.
Pros:
– Wide range of materials and sizes available
– Suitable for various industries including oil & gas, marine, and automotive
– High-quality and proprietary compounds
– Available in standard, non-standard, and metric sizes
Cons:
– No specific details on French R series O-Rings available on the provided link
– May require additional inquiry for specific size and material details
O-Rings, Rubber Seals – Best China Manufacturer & Supplier
Product Details: Savvy manufactures a wide range of o-rings made from various materials including rubber, metal, and other materials. The most commonly used o-ring materials are NBR, FKM (Viton), and Silicone. NBR is widely used due to its good properties and low cost. FKM/Viton offers the best comprehensive performance and is used in high-standard sealing equipment. Silicone is often used in medical and food industries due to its high-temperature resistance, tastelessness, and non-toxicity. Other materials include EPDM, HNBR, CR, and Aflas. O-rings are available in various hardness levels, typically measured in Shore A units, ranging from 40 to 90, with 60-70 being
the most common. They also come in different colors, with standard colors recommended for cost and identification purposes.
Pros:
– High-temperature resistance: Silicone o-rings can operate from -70°C to 220°C.
– Good chemical resistance: Different elastomers have varying compatibility with c…
– Wide range of materials: Available in NBR, FKM/Viton, Silicone, EPDM, HNBR, CR,…
– Customizable: Savvy can produce custom o-rings at low mold/tooling costs and fas…
– Variety of applications: Suitable for medical, food, automotive, and other indus…
Cons:
– Installation challenges: High hardness can make installation inconvenient, while…
– Material limitations: Each material has specific limitations, such as NBR’s limi…
30-80 Durometer colored elastic large diameter o-rings
Product Details: The 30-80 Durometer colored elastic large diameter O-rings are made from high-quality materials such as Nitrile rubber (NBR), Viton, and Silicone. These O-rings are designed for various applications, including use in excavators. They come in a wide range of sizes, with inner diameters (ID) from 0.8 to 572 mm and cross-sections from 0.4 to 17.27 mm. The O-rings exhibit good elastic and resilient properties, and they are resistant to high temperatures, abrasion, and oils. They are available in over 1000 existing sizes, eliminating the need for tooling costs.
Pros:
– Made from high-quality, durable rubber materials (NBR, Viton, Silicone).
– Wide range of sizes available (ID: 0.8-572 mm, Cross Section: 0.4-17.27 mm).
– Resistant to high temperatures, abrasion, and oils.
– No tooling costs due to over 1000 existing sizes.
– Good elastic and resilient properties.
Cons:
– No specific information on the website regarding potential drawbacks or limitati…
– The need for careful material selection based on the specific application requir…
China O Rings Manufacturers and Suppliers
China O-Ring Kits Suppliers – NNK Oil Seal
Product Details: The Universal Type O-Ring Kit Box 30 size is a comprehensive assortment of O-rings made from commercial grade nitrile butadiene rubber (NBR) and fluoroelastomer (FKM) formulations. The kit includes 382-419 pieces depending on the type, with sizes available in both inches and millimeters. The O-rings are characterized by their oil, chemical, and high-pressure resistance, and they have a temperature range of -40 to 260°C. They are suitable for various applications including machines, excavators, cars, doors, windows, electric appliances, bearings, and pumps. The kit is certified with ISO9001/TS16949 and meets ASTM D 2000 standards. The O-rings have a hardness of 60-90
Shore A and are available in black, brown, red, and clear colors[1].
Pros:
– High resistance to oils and chemicals
– Wide temperature range (-40 to 260°C)
– Suitable for various applications including machines, excavators, and automotive…
– Meets ASTM D 2000 and ISO9001/TS16949 standards
– Thick wall structure for strong sealing and durability
– UV resistant and suitable for liquids such as oil
Cons:
– Limited information on specific usage conditions that might require special mate…
– No mention of warranty or long-term performance guarantees
– May require additional backup rings for elevated operating pressure environments
Comparison Table
| Company | Product Details | Pros | Cons | Website |
|---|---|---|---|---|
| O-ring size (no tooling charge) | Precision Polymer Engineering (PPE) offers a wide range of O-ring sizes and types, including AS 568, DIN 11864, and RJT O-rings. These O-rings are ava… | – Fully molded O-rings eliminate weak spots at joints, reducing the risk of premat… – Tighter cross-section tolerances ensure a proper fit in critic… | – Higher cost compared to jointed or spliced O-rings due to the advanced manufactu… – Limited availability of certain sizes and materials without cu… | www.prepol.com |
| Ring Size Conversion Chart – International – Après Jewelry | The ring size conversion chart provides a comprehensive guide to convert ring sizes between different international standards, including US, UK, Germa… | – Allows accurate conversion between different international ring size standards. – Includes inner diameters in millimeters for precise measurements…. | – Ring sizes can be affected by factors like finger shape, temperature, and band w… – Some ring styles or materials cannot be resized, making accura… | www.apresjewelry.com |
| O-Rings | China – Products | Parker NA | Parker O-rings are circular sealing elements with circular cross-sections, mainly used in static applications. They are specified by the inside diamet… | – Wide range of materials to suit various applications, including high temperature… – Ease of service with no smearing or retightening required, and… |
| Rubber o-ring sizes | Rubber O-rings are available in a wide range of sizes. The internal diameter (ID) can range from 0.5 mm to 2000.00 mm, and the cross-section (CS) diam… | – Wide range of sizes available to fit different applications. – Standardized sizes according to the American AS568 series for consistency and co… -… | – No specific details on the website regarding the durability or lifespan of the O… – No information provided on the pricing or availability of the… | www.precise-rubber.com |
| International Ring Size Conversion Chart: US, Australia, … | To measure your ring size, you can use several methods. The most accurate way is to use an adjustable ring sizer, which can be purchased online or req… | – Accurate measurement with adjustable ring sizers – Convenient methods like string or tape measure and printable charts – No need to visit a jewelry… | – Manual methods may require careful measurement to avoid inaccuracies – Printable charts need to be printed at the correct scale for accuracy – Tempo… | www.betterthandiamond.com |
| French R O-Rings, AS 568A O-Rings, JIS … | Revata Engineering offers French R series O-Rings in various materials including fluorocarbon, NBR, EPDM, and Silicone. These O-Rings are available in… | – Wide range of materials and sizes available – Suitable for various industries including oil & gas, marine, and automotive – High-quality and proprie… | – No specific details on French R series O-Rings available on the provided link – May require additional inquiry for specific size and material detail… | www.revataengineering.com |
| O-Rings, Rubber Seals – Best China Manufacturer & Supplier | Savvy manufactures a wide range of o-rings made from various materials including rubber, metal, and other materials. The most commonly used o-ring mat… | – High-temperature resistance: Silicone o-rings can operate from -70°C to 220°C. – Good chemical resistance: Different elastomers have varying compati… | – Installation challenges: High hardness can make installation inconvenient, while… – Material limitations: Each material has specific limitations,… | savvyrubber.com |
| 30-80 Durometer colored elastic large diameter o-rings | The 30-80 Durometer colored elastic large diameter O-rings are made from high-quality materials such as Nitrile rubber (NBR), Viton, and Silicone. The… | – Made from high-quality, durable rubber materials (NBR, Viton, Silicone). – Wide range of sizes available (ID: 0.8-572 mm, Cross Section: 0.4-17.27 m… | – No specific information on the website regarding potential drawbacks or limitati… – The need for careful material selection based on the specific… | www.melon-rubber.com |
| China O Rings Manufacturers and Suppliers | www.svks-rubberseal.com | |||
| China O-Ring Kits Suppliers – NNK Oil Seal | The Universal Type O-Ring Kit Box 30 size is a comprehensive assortment of O-rings made from commercial grade nitrile butadiene rubber (NBR) and fluor… | – High resistance to oils and chemicals – Wide temperature range (-40 to 260°C) – Suitable for various applications including machines, excavators, an… | – Limited information on specific usage conditions that might require special mate… – No mention of warranty or long-term performance guarantees – M… | www.nokcn-seals.com |
Frequently Asked Questions (FAQs)
What are the standard sizes for o-rings in China, and how are they measured?
In China, o-rings are available in both standard and metric sizes, adhering to various international standards such as AS568 for the USA, BS1516 for the UK, DIN 3771 for Germany, JIS B 2401 for Japan, ISO 3601 for International, and GB 3452.1 for China. To specify an o-ring size, you typically need to know the inside diameter (ID) and the cross-section (CS) or width. The outside diameter (OD) can be calculated using the formula: OD = ID + CS * 2.
What materials are commonly used to manufacture o-rings in Chinese factories?
Chinese o-ring manufacturers use a variety of materials, each with its own unique properties and applications. Common materials include Nitrile (NBR), Ethylene Propylene Diene Monomer (EPDM), Hydrogenated Nitrile Butadiene Rubber (HNBR), Fluorocarbon (FKM or Viton), Silicone, and Fluorosilicone (FVMQ). Each material has different compatibility with chemicals and operating conditions, so it’s important to choose the right one for your specific needs.
Can I customize o-rings with specific colors, designs, or logos in Chinese factories?
Yes, you can customize o-rings with specific colors, designs, or logos. Many Chinese manufacturers offer OEM and ODM services, allowing you to tailor the o-rings to your requirements. You can choose from various colors by providing the standard RAL or Pantone color number. Additionally, you can customize the packaging and even add your logo to the o-rings. However, unique or uncommon colors may increase the cost and require a larger minimum order quantity (MOQ).
What is the typical hardness range for o-rings, and how does it affect their performance?
The hardness of o-rings is measured in Shore A units and typically ranges from 40 to 90. For most applications, a hardness of 70 Shore A is commonly used, although silicone o-rings often use 60 Shore A. The hardness affects the ease of installation and the o-ring’s durability. Lower hardness makes installation easier but can lead to issues like peeling or extrusion, while higher hardness makes installation harder but provides better sealing performance.
What kind of certifications and quality standards do Chinese o-ring manufacturers adhere to?
Chinese o-ring manufacturers often adhere to several international certifications and quality standards to ensure the quality of their products. These include ISO 9001 for quality management, ISO 14001 for environmental management, IATF 16949 for automotive quality, and ISO 13485 for medical devices. Additionally, they may have certified laboratories to develop and test compounds according to specific standards like