Are you looking for the best EPDM rubber O-ring factories in China? With the growing demand for high-quality sealing solutions, it’s crucial to find the right manufacturer. Let’s dive into a comparison of the top EPDM O-ring factories in China, highlighting their strengths, product ranges, and industry applications.

China EPDM O Rings Manufacturers and Suppliers

Product Details: EPDM O-rings are made from ethylene propylene diene monomer (EPDM) rubber, a copolymer of ethylene and propylene with a small amount of a third monomer (usually a diene) for vulcanization. They are available in a hardness range of 40 to 90 Shore A, with 70 Shore A being the most common. EPDM O-rings can operate in a temperature range from -55°C to 125°C, or up to 150°C for peroxide-cured systems. They are available in various colors and are widely used in applications such as phosphate-ester based hydraulic fluids, glycol-based brake fluids, hot water, and steam systems.

Pros:
– Excellent resistance to ozone, sunlight, and weathering.
– Good flexibility at low temperatures.
– Good chemical resistance to many dilute acids and alkalis, polar solvents, and w…
– Good electrical insulation properties.
– Suitable for outdoor and low-temperature environments.
– Resistant to steam up to 204.4°C (400°F).
– Versatile and reliable for various static and dynamic applications.

Cons:
– Not suitable for petroleum fluids (fuels, mineral oils, greases).
– Not recommended for use with aliphatic and aromatic hydrocarbons, di-ester based…
– Sulfur-cured EPDM O-rings can harden and have an inferior compression set at hig…
– Peroxide-cured EPDM O-rings are more expensive and difficult to produce.

Top 10 EPDM O-rings Manufacturers and …

Wholesale Colored EPDM O-rings for Sale

Product Details: EPDM O-rings are made from Ethylene Propylene Diene Monomer (EPDM), a copolymer of ethylene and propylene with a small amount of a third monomer (usually a diene) for vulcanization. They are available in a hardness range of 40 to 90 Shore A and can be manufactured in various colors including black, brown, green, white, rust, yellow, blue, red, orange, purple, and gray. The service temperature range is typically from -55°C to 125°C, or up to 150°C for peroxide-cured systems[1][2][4].

Pros:
– Excellent resistance to ozone, sunlight, and weathering
– Good flexibility at low temperatures
– Good chemical resistance to many dilute acids and alkalis, as well as polar solv…
– Good electrical insulation properties
– Suitable for hot water or steam applications up to 150°C
– Widely used in phosphate-ester based hydraulic fluids and glycol based brake flu…
– Durable and reliable in outdoor and low-temperature environments

Cons:
– Not suitable for use with petroleum fluids (fuels, mineral oils, greases)
– Not recommended for use with oils, fuels, or solvents as these can cause degrada…
– Sulfur-cured EPDM can be prone to hardening and have an inferior compression set…

Rubber O-Ring Seals, different size and material …

Product Details: Product name: O Ring / O-Ring Seals. Color: Any color, according to customer requirements. Hardness: 40-90 Shore A. Material: NBR, FKM, Silicone, EPDM, HNBR, CR. Working temperature: -48~+260°C. Resistance: Oil, High Temperature, Ozone, Water, Chemical Resistant. Supply Ability: 10,000,000 Piece/Pieces per Month. Packaging: Inner is plastic bag, outer is carton, or custom as per your requirement. Port: Shanghai/Ningbo China. Lead Time: Depending on the number of products. Certifications: ISO9001/TS16949, SGS, FDA, RoHS, REACH.

Pros:
– Wide range of materials available (NBR, FKM, Silicone, EPDM, HNBR, CR) to suit v…
– High temperature and chemical resistance.
– Customizable colors and sizes.
– Compliant with multiple certifications (ISO9001/TS16949, SGS, FDA, RoHS, REACH).
– Experienced quality control and assurance system.
– OEM and ODM options available.

Cons:
– Lead time depends on the number of products, which could be variable.
– Minimum Order Quantity (MOQ) is 5000 pieces, which might be high for some custom…

O-Rings, Rubber Seals – Best China Manufacturer & Supplier

Product Details: Savvy manufactures a wide range of o-rings made from various materials including NBR, FKM (Viton), Silicone, EPDM, HNBR, CR, Aflas, and more. These o-rings are available in standard and custom sizes, with the ability to produce encapsulated o-rings, backup-rings, x-rings, etc. The temperature range for these o-rings varies by material, such as -70°C to 220°C for Silicone. The hardness is typically measured in Shore A, with common hardness levels being 60 to 90. Savvy also offers o-rings in various colors, with the option for custom colors. The company has thousands of molds and can arrange for fast delivery via door-to-door

courier.

Pros:
– Good property and low cost, especially for NBR which is used in about 50% of o-r…
– FKM (Viton) offers the best comprehensive performance and is widely used in high…
– Silicone o-rings are tasteless, non-toxic, and resistant to high temperatures an…
– Custom o-rings can be made at a very low mold/tooling cost with fast delivery.
– Available in various colors and materials to suit different applications.

Cons:
– Low hardness o-rings are easy to install but prone to peeling, installation dama…
– High hardness o-rings are inconvenient to install.
– Material selection must be careful to achieve the best sealing purpose, as diffe…

Epdm Rubber O Rings 2024

Product Details: EPDM (Ethylene Propylene Diene Monomer) rubber O-rings are versatile sealing components known for their excellent resistance to heat, ozone, and chemicals. They are commonly used in various industrial applications, including automotive, plumbing, and HVAC systems. These O-rings are available in a range of sizes and can be used in both static and dynamic sealing environments. They are also known for their good low-temperature flexibility and are generally more resistant to aging than other types of rubber.

Pros:
– Excellent resistance to heat, ozone, and chemicals
– Good low-temperature flexibility
– Versatile and used in various industrial applications
– Resistant to aging

Cons:
– Not suitable for applications involving oil or fuel due to limited compatibility
– May not provide the best seal in high-pressure environments

Top 10 China EPDM O-RING Manufacturers

FKM O Rings, China NBR O Ring supplier

Product Details: The products offered by www.o-ringsseals.com include a wide range of o-ring seals made from various materials such as NBR, FKM, EPDM, HNBR, ACM, NR, and more. These o-rings are available in different hardness levels (20 Shore A to 90 Shore A), colors, and sizes, including customized and standard sizes like AS568 and ISO 3601. The products are certified with ISO9001, TS16949, FDA, RoHS, and REACH compliance. They are used in various applications including automotive, construction machinery, machine tool equipment, food, health, water treatment, and chemical processing. The company, ORK, has two factories in China and offers immediate delivery from their

large inventory of over 300 million o-rings[1][3][5].

Pros:
– Good shock-proof, heat insulation, and sound insulation performance.
– Excellent flexibility and anti-compressive deformation, chemical resistance.
– High temperature resistance and low temperature resistance capabilities.
– Long service life and good sealing solutions.
– Easy installation reduces risk.
– Customizable specifications, packing requirements, and colors according to custo…
– Immediate delivery from a large inventory of over 300 million o-rings.
– Experienced staff to answer inquiries in fluent English, with a 24-hour response…

Cons:
– Minimum Order Quantity (MOQ) requirements, which can be a barrier for small orde…
– Payment terms require 100% payment in advance for orders under US$1000 (or US$20…

EPDM rubber o-ring seal different size factory China …

Product Details: YIWU GREAT SEAL RUBBER PRODUCTS COMPANY specializes in various rubber sealing solutions, including oil seals made from special materials like fluorine rubber (FKM). These seals are widely used in mechanical equipment to ensure effective sealing. The company focuses on improving product quality, reducing costs, and solving customer sealing problems.

Pros:
– Wide range of applications in mechanical equipment
– High-quality materials such as fluorine rubber (FKM) for durability
– Cost-effective solutions
– Customer-oriented approach to solve sealing problems

Cons:
– Limited specific product details available without a direct product link
– No detailed information on product lifespan or maintenance requirements

China Factory Rubber ORing Seals NBR FKM FPM EPDM …

Comparison Table

Frequently Asked Questions (FAQs)

What are the key qualities to look for in an EPDM O-ring manufacturer in China?

When selecting an EPDM O-ring manufacturer in China, you should look for companies with a strong reputation for quality and precision. Check if they have international certifications such as ISO 9001, ISO 14001, and IATF 16949, which ensure compliance with global standards. Also, consider their experience, advanced machinery, and the expertise of their workforce. Custom design services and a focus on research and development are additional benefits to look out for.

What materials are commonly used for O-rings besides EPDM?

Besides EPDM, several other materials are commonly used for O-rings. These include Nitrile (NBR), Fluorinated Rubber (FKM or Viton), Silicone, and Hydrogenated Nitrile Butadiene Rubber (HNBR). Each material has its own unique properties and is suited for different applications. For example, NBR is known for its good balance of properties and low cost, while FKM is used in high-standard sealing equipment due to its excellent comprehensive performance.

Can I get custom-sized and custom-material O-rings from Chinese manufacturers?

Yes, many Chinese O-ring manufacturers offer custom-sized and custom-material options. Companies like Hongju Silicone, Savvy, and SWKS Technology & Development can produce O-rings according to your specific drawings or samples. They also offer a variety of materials, including EPDM, NBR, FKM, and Silicone, and can even provide special compounds based on your application needs.

What is the typical lead time and delivery process for ordering EPDM O-rings from China?

The lead time for ordering EPDM O-rings from China can vary depending on the manufacturer and the complexity of your order. Generally, manufacturers with advanced machinery and large inventories can offer quicker delivery times. Some companies, like Savvy, use door-to-door courier services to ensure fast and reliable delivery. Be sure to inquire about the specific lead time and delivery options when placing your order.

How do I ensure the quality of the EPDM O-rings I purchase from Chinese manufacturers?

To ensure the quality of EPDM O-rings from Chinese manufacturers, look for companies that conduct rigorous testing and have quality control measures in place. Check if they have machine-tested products, as mentioned by NNK Oil Seal, and ensure they comply with international standards. Additionally, ask about their return and warranty policies, and consider requesting samples before making a large order to verify the quality of the products.