Are you looking for the best o-ring sizing factories in China? With so many options available, choosing the right one can be overwhelming. In this article, we’ll compare 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 needs.
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 joint weaknesses. They are used in critical applications like compressors, valves, oil & gas equipment, and semiconductor manufacturing.
Pros:
– Fully molded O-rings eliminate joint weaknesses, reducing the risk of premature…
– Tighter cross-section tolerances ensure a proper fit in critical equipment.
– Available in high-performance elastomer grades with excellent chemical resistanc…
– Metal detectable elastomers are available for enhanced consumer safety in food a…
– Manufactured in cleanroom environments to minimize contamination.
Cons:
– Custom tooling may be required for non-standard sizes, which could add to the ov…
– Lead times, although short, may still vary depending on the complexity of the or…
– Higher precision and quality may result in a higher price point compared to join…
danco o ring size chart Manufacturers and Factory China
Product Details: Danco O-Rings are available in various metric and inch standard sizes, specified by the inside diameter and the cross section diameter (thickness). The kits include multiple sizes to fit different applications, such as faucet repairs. For example, the 14-piece O-Ring Assortment includes sizes like #1, #7, #8, #9, #11, #12, #25, and #34, each with specific outside diameter, inside diameter, and wall thickness measurements.
Pros:
– Tough, flexible rubber construction designed to withstand harsh chemicals and hi…
– Provides a better seal to prevent leaks, helping to save water and energy.
– Includes multiple sizes to fit various manufacturers and applications, such as d…
– High abrasive resistance and temperature resistance.
Cons:
– Limited to specific sizes included in the kit, which may not cover all possible…
– May require additional tools or knowledge to correctly identify and replace the…
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. It includes inner diameters in millimeters and corresponding ring sizes for each country. Users can measure their ring size using a thin strip of paper or thread, mark the overlap, and then use the chart to determine their size. The chart is useful for both men and women and covers a wide range of sizes.
Pros:
– Allows for accurate conversion between different international ring size standar…
– Includes inner diameters in millimeters for precise measurements.
– Can be used at home with simple tools like a strip of paper or thread.
– Covers a wide range of sizes for both men and women.
– Helpful for shopping for rings from international stores.
Cons:
– Ring sizes can be affected by factors like finger shape, ambient temperature, an…
– Some ring styles, such as eternity bands or those made of certain materials like…
– Multiple measurements may be necessary to account for minor variations in fit.
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 FDA compliance, tastelessness, non-toxicity, and resistance to high temperatures and severe cold. The temperature range for these o-rings varies, with VMQ/Silicone o-rings operating from -70°C to 220°C. The hardness of o-rings is measured in
Shore A, typically ranging from 40 to 90, with Shore A 70 being commonly used. Savvy also produces custom o-rings, encapsulated o-rings, backup-rings, x-rings, and more.
Pros:
– High-temperature and FDA food grade compliance for certain materials
– Wide range of materials available (NBR, FKM/Viton, Silicone, etc.)
– Good wear resistance and oil resistance
– Easy to install and custom sizes available
– Low mold/tooling cost for custom o-rings
– Fast delivery options
Cons:
– Low hardness o-rings are prone to peeling, installation damage, extrusion, and p…
– High hardness o-rings can be inconvenient to install
– Unique colors may increase cost and require a larger MOQ with longer delivery ti…
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 adhere to the American standard AS568 series, ensuring compatibility with various applications. The materials used include Nitrile (NBR), Ethylene Propylene Diene Monomer (EPDM), Fluorinated Hydrocarbon (VITON), and other specialized materials like silicone, PTFE, and Teflon.
Pros:
– Wide range of sizes available to fit various applications.
– Adheres to the American standard AS568 series for consistency and reliability.
– Made from a variety of materials to suit different environmental and performance…
Cons:
– No specific details on the website regarding the durability or lifespan of the O…
– No information provided about the pricing or availability of the products.
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 a jewelry website. This sizer allows you to try on different sizes to 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 compare it with an existing
ring that fits well[1][3][5].
Pros:
– Accurate measurement with adjustable ring sizers
– Convenient methods such as using a string or existing ring
– Printable ring size charts available for easy reference
– Options for temporary adjustments like sizing beads, spring inserts, and plastic…
Cons:
– Measurements can vary depending on the time of day and weather
– Cutting or soldering the ring for resizing can compromise its integrity
– Temporary adjustments may need frequent checking and replacement
– Homemade methods like using food-grade silicone require caution to avoid damagin…
French R O-Rings, AS 568A O-Rings, JIS …
Product Details: The French R O-Ring series includes a wide range of O-Rings measured by their inside diameter (ID) and cross-section width (C.S.) in millimeters. The series encompasses various sizes, such as R000 with an ID of 1.15mm and C.S. of 0.13mm, to larger sizes like R75. Each O-Ring has specific dimensions, for example, R5B has an ID of 6.35mm and a C.S. of 0.16mm. The O-Rings are categorized into different sub-series (e.g., R0, R1, R2, etc.) with varying ID and C.S. dimensions[1].
Pros:
– Wide range of sizes available to fit various applications
– Precise measurements in millimeters for accurate fitting
– Diverse sub-series to cater to different needs
Cons:
– Complexity in selecting the correct size due to numerous options
– No specific information on material compatibility or physical properties on this…
– Requires careful measurement to ensure the correct O-Ring is chosen
O-Ring Size Chart for U.S. & Metric Standard Sizes
Product Details: The website provides o-ring size charts for various standards, including U.S., Japanese JIS, British BS, and Common Metric sizing. It offers charts for o-rings, quad-rings, x-rings, and square-rings. Users can view these charts online or download them as PDFs. The site also allows for the ordering of standard and custom o-rings, with the option for non-standard products available in most materials without tooling or setup fees.
Pros:
– Comprehensive size charts for different international standards
– Option to view charts online or download as PDFs
– Availability of standard and custom o-rings
– No tooling or setup fees for non-standard products
Cons:
– No specific details on material options or pricing provided on the index page
– Users need to navigate to separate pages for detailed information on each type o…
Parker AS568 O-Rings Size Chart
Product Details: Parker O-Rings are available in various series, including the 2-XXX and 5-XXX series. These O-Rings come in standard and non-standard dimensions, with specifications listed in both inches and millimeters. The 2-XXX series aligns with AS568B dimensions, while the 5-XXX series includes non-standard sizes not covered by AS568 standards. The O-Rings are manufactured from various rubber compounds and are designed for different applications, including pneumatic and hydraulic systems.
Pros:
– Wide range of sizes and dimensions to fit various applications.
– Manufactured from high-quality rubber compounds to ensure durability and perform…
– Comprehensive sizing charts and guides available for easy selection and installa…
– Compatible with both standard and non-standard applications.
Cons:
– Non-standard sizes may have limited availability and higher costs.
– Materials with non-standard shrinkage may require special ordering and consultat…
– Tolerances and dimensions must be carefully matched to ensure proper fit and fun…
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 have a hardness range of 30 to 80 Shore Durometer and are available 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. They are designed for various applications, including use in excavators, and offer properties such as high temperature resistance, abrasion resistance, and oil resistance.
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).
– High temperature resistance, abrasion resistance, and oil resistance.
– Over 1000 existing sizes available, avoiding tooling costs.
– Good elastic and resilient properties.
Cons:
– No specific information on the website regarding potential cons or limitations o…
– Custom orders may require additional lead time and costs, though not explicitly…
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 joint weaknesses, reducing the risk of premature… – Tighter cross-section tolerances ensure a proper fit in critica… | – Custom tooling may be required for non-standard sizes, which could add to the ov… – Lead times, although short, may still vary depending on the co… | www.prepol.com |
| danco o ring size chart Manufacturers and Factory China | Danco O-Rings are available in various metric and inch standard sizes, specified by the inside diameter and the cross section diameter (thickness). Th… | – Tough, flexible rubber construction designed to withstand harsh chemicals and hi… – Provides a better seal to prevent leaks, helping to save water… | – Limited to specific sizes included in the kit, which may not cover all possible… – May require additional tools or knowledge to correctly identify… | www.seal-o-ring.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 for accurate conversion between different international ring size standar… – Includes inner diameters in millimeters for precise measuremen… | – Ring sizes can be affected by factors like finger shape, ambient temperature, an… – Some ring styles, such as eternity bands or those made of cert… | www.apresjewelry.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 and FDA food grade compliance for certain materials – Wide range of materials available (NBR, FKM/Viton, Silicone, etc.) – Good wea… | – Low hardness o-rings are prone to peeling, installation damage, extrusion, and p… – High hardness o-rings can be inconvenient to install – Unique… | savvyrubber.com |
| 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 various applications. – Adheres to the American standard AS568 series for consistency and reliability. – Made f… | – No specific details on the website regarding the durability or lifespan of the O… – No information provided about the pricing or availability of t… | 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 such as using a string or existing ring – Printable ring size charts available… | – Measurements can vary depending on the time of day and weather – Cutting or soldering the ring for resizing can compromise its integrity – Temporary… | www.betterthandiamond.com |
| French R O-Rings, AS 568A O-Rings, JIS … | The French R O-Ring series includes a wide range of O-Rings measured by their inside diameter (ID) and cross-section width (C.S.) in millimeters. The… | – Wide range of sizes available to fit various applications – Precise measurements in millimeters for accurate fitting – Diverse sub-series to cater t… | – Complexity in selecting the correct size due to numerous options – No specific information on material compatibility or physical properties on this…. | www.revataengineering.com |
| O-Ring Size Chart for U.S. & Metric Standard Sizes | The website provides o-ring size charts for various standards, including U.S., Japanese JIS, British BS, and Common Metric sizing. It offers charts fo… | – Comprehensive size charts for different international standards – Option to view charts online or download as PDFs – Availability of standard and cu… | – No specific details on material options or pricing provided on the index page – Users need to navigate to separate pages for detailed information on… | www.allorings.com |
| Parker AS568 O-Rings Size Chart | Parker O-Rings are available in various series, including the 2-XXX and 5-XXX series. These O-Rings come in standard and non-standard dimensions, with… | – Wide range of sizes and dimensions to fit various applications. – Manufactured from high-quality rubber compounds to ensure durability and perform….. | – Non-standard sizes may have limited availability and higher costs. – Materials with non-standard shrinkage may require special ordering and consulta… | www.espint.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 cons or limitations o… – Custom orders may require additional lead time and costs, thou… | www.melon-rubber.com |
Frequently Asked Questions (FAQs)
How do I specify the size of an o-ring when ordering from a Chinese manufacturer?
When ordering o-rings from a Chinese manufacturer, you typically need to specify the inside diameter (ID), outside diameter (OD), and the cross-section (CS) or width. However, providing the ID and CS is usually sufficient. For example, you might specify an o-ring size as “ID 20 x CS 2 mm.” The outside diameter can be calculated using the formula: OD = ID + CS * 2.
What are the standard o-ring sizes and international standards followed by Chinese manufacturers?
Chinese manufacturers often adhere to various international standards for o-ring sizes, 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 consistency and compatibility across different regions.
What materials are commonly used by Chinese o-ring manufacturers, and how do I choose the right one?
Chinese o-ring manufacturers use a variety of materials such as NBR (Nitrile), EPDM, HNBR (Hydrogenated Nitrile), FKM (Viton), silicone, and others. The choice of material depends on the application and the environment in which the o-ring will be used. For example, NBR is good for oil and fuel resistance, while EPDM is better for chemical and heat resistance. You should consider factors like temperature, chemical compatibility, and the type of sealing required.
Can Chinese o-ring manufacturers produce custom o-rings, and what is the process like?
Yes, many Chinese o-ring manufacturers offer custom o-ring production services. You can provide your specifications, drawings, or samples, and they will create custom molds to meet your needs. This process often involves lower mold and tooling costs compared to other countries, and the manufacturers can usually arrange for fast delivery. Additionally, some manufacturers offer free samples for testing before placing a large order.
What is the typical minimum order quantity (MOQ) for o-rings from Chinese manufacturers, and how does it affect the price?
The minimum order quantity (MOQ) for o-rings from Chinese manufacturers can vary widely, ranging from as low as 10 pieces to several thousand pieces. Generally, a lower MOQ may result in a slightly higher price per piece, while larger orders can lead to more competitive pricing. It’s important to check with the manufacturer for their specific MOQ and pricing structure to ensure it aligns with your needs and budget.