Are you looking for the best o-ring and washer factories in China? With so many options available, it can be overwhelming to choose the right one. In this article, we’ll compare some of the top manufacturers, 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: O-ring kit boxes are comprehensive sets containing various sizes of O-rings, typically made from materials such as NBR (Nitrile), Silicone, FKM, EPDM, and HNBR. These kits are designed for sealing applications in hydraulic, pneumatic, and other industrial systems. They usually include a range of O-ring sizes, often organized in a hard-wearing storage box to keep the O-rings separated and easily accessible. The kits are used to prevent leaks of liquids and gases in static, dynamic, hydraulic, and pneumatic components[1][2][4].

Pros:
– Provides a wide range of O-ring sizes to meet various application needs.
– Made from high-quality materials to ensure superior sealing performance and dura…
– Customization options available to tailor the kit to specific requirements.
– Enhances system efficiency by preventing leaks and reducing friction.
– Suitable for many industrial applications, including petrochemical, mechanical m…

Cons:
– May not be suitable for safety-critical applications without additional certific…
– The variety of sizes and materials can make selection complex for non-experts.
– Storage and organization of the O-rings require careful handling to maintain the…

Viton Green O Ring Hole Sealing Washer

Product Details: The Green Colour Viton O-ring 75A is made from Viton (Fluorocarbon Elastomer) and has a durometer rating of 75 Shore A. It is characterized by its green color and is suitable for applications requiring high temperature resistance and good compression set. The temperature range for this o-ring is -20° to 400°F (-29° to 204°C). It is available in various sizes and can be customized to meet specific requirements.

Pros:
– Outstanding resistance to blended aromatic fuels, straight aromatics, and haloge…
– Good resistance to strong acids and steam.
– High temperature resistance with a range of -20° to 400°F (-29° to 204°C).
– Available in various sizes and customizable to meet special requirements.

Cons:
– No specific cons mentioned in the provided sources, but general limitations of V…

Cloudray O-Ring Silicone Washer For CO2 Laser Focus …

Product Details: The Cloudray O-Ring Silicone Washer is designed for use with CO2 laser focus lenses. It is crafted from premium silicone, which ensures durability and reliability. The washer is intended to provide a secure seal and withstand the wear and tear associated with laser cutting and engraving operations.

Pros:
– Durable and reliable due to its premium silicone construction
– Withstands wear and tear from laser operations
– Provides a secure seal for the CO2 laser focus lens

Cons:
– No specific cons mentioned in the product description
– May require periodic replacement depending on usage

China Metal Sealing Washer

Product Details: Metal sealing washers are designed to provide a tight seal and prevent leakage around fasteners and surfaces. They often consist of a hard metal outer ring for load-bearing strength and an inner ring of softer synthetic rubber, such as Buna-N or EPDM, to create the seal. These washers are available in various sizes and materials, including stainless steel and copper or aluminum. They are suitable for different thread types, such as DIN 908 and DIN 910 fine threads, and come in various dimensions to fit different screw sizes.

Pros:
– Provides a tight seal to prevent leakage
– Load-bearing strength from the hard metal outer ring
– Available in various materials and sizes to fit different applications
– Suitable for different thread types

Cons:
– May expose users to chemicals like lead in some cases
– Requires proper sizing and material selection to ensure effectiveness
– Can be more expensive than non-sealing washers

Rubber Washers Manufacturer in China – Lindas

Product Details: Lindas Rubber Washers are flexible and durable, designed to provide a tight seal. They are available in over 2000 standard sizes and various thicknesses. Custom designs can also be created to meet specific requirements.

Pros:
– Flexible and durable
– Provide a tight seal
– Over 2000 standard sizes available
– Different thicknesses available
– Custom design options

Silicone Washer Rubber Seal ring

Product Details: Silicone washers are thin circular pieces of rubber with a hole in the center, designed to be used with screws or bolts. They are commonly used in construction, assembly, and manufacturing to distribute the load of a screw or bolt over a wider area, reducing the risk of damaging the material or the screw head. These washers are available in various sizes and materials, suitable for applications such as cookware handles and knobs. They exhibit excellent temperature resistance, stability from -60°C to 230°C, and are FDA and WRAS approved. They also offer good waterproofing, flexibility, and chemical stability.

Pros:
– Excellent temperature resistance and stability from -60°C to 230°C
– Good waterproofing due to high and low temperature resistance and chemical stabi…
– Flexibility and plasticity to fill and seal contact surface defects
– FDA and WRAS approved for safety and compliance
– Effective in distributing the load of a screw or bolt to prevent material damage
– Available in various sizes and materials for different applications

Cons:
– Silicone washers are softer and less wear-resistant compared to nylon washers
– May not be as durable as other materials in certain high-wear applications

Custom Rubber Washer Wholesale

Product Details: Rubber Washers are constructed from high-quality rubber materials, making them durable and long-lasting. They are capable of withstanding harsh environmental conditions and repeated use. These washers are available in a diverse range of design options, including over 3000 choices in standard sizes and various shapes. They can be customized in terms of size, thickness, and material to meet specific application requirements. Rubber Washers are used in various industries such as plumbing, automotive, and manufacturing for sealing connections, reducing vibration, and providing cushioning.

Pros:
– Excellent sealing performance, preventing leaks and ensuring tight connections.
– Versatile components used in a wide range of industries.
– Wide range of customization options for size, thickness, and material.
– Durable and long-lasting, capable of withstanding harsh environmental conditions…
– Excellent resistance to various chemicals, oils, and solvents.
– Designed to withstand a wide range of temperatures.
– Provide cushioning and reduce vibration.

Cons:
– No specific cons mentioned, but the need for precise material selection and sizi…
– May require periodic inspection and replacement depending on the application and…

O-Ring Kits – China Manufacturer & Supplier – Savvy

Product Details: Savvy supplies o-ring kits in various configurations. The kits include o-rings made from materials such as NBR, FKM, and PTFE. Each kit contains 382 or 386 o-rings in 30 different sizes. There are also o-ring splicing kits available, which include 9 or 5 o-ring cords of different cross-sections, a splicing jig, a cutting tool, and adhesives. These kits are convenient for on-the-job repairs and allow users to fabricate custom o-rings by cutting and gluing the cord. The kits come in both metric and imperial sizes, with hardness levels of Shore A 70 or Shore A 75[1].

Pros:
– Wide range of o-ring sizes and materials available
– Convenient for on-the-job repairs with splicing kits
– Customizable o-rings can be fabricated using the splicing kits
– Suitable for various applications with different material options
– Reasonable prices, especially for NBR material

Cons:
– Spliced o-rings have relatively large tolerances and may not be as precise as mo…
– Requires manual splicing which can be time-consuming and may require special ski…
– Higher cost for FKM material compared to NBR
– Installation and use of spliced o-rings may be less convenient than pre-made o-r…

China O Rings Manufacturers and Suppliers

China wholesale Rubber O Ring Manufacturers – Falt … – Panpal

Product Details: PANPAL is a manufacturer of various rubber and hardware products, including rubber O-rings, flat and lock washers, screw caps, hammer head bolts, and hangers. They have crucial certifications in their market and offer products such as rubber O-rings in different specifications and packaging options. The products are packed in PP boxes with specific dimensions (9×13.5x3cm) and quantities (12 sets per inner carton, 72 sets per outer carton). The carton dimensions are 60x30x20cm with a gross weight of 17.3kg.

Pros:
– Competitive pricing for quality products
– Variety of products including rubber O-rings, flat and lock washers, and other h…
– Certified by crucial market certifications

Cons:
– Limited information available on the website about specific product materials an…
– No clear details on lead times or delivery services

Comparison Table

Frequently Asked Questions (FAQs)

Frequently Asked Questions About O Ring Washer Factories in China

What types of materials are commonly used by o ring washer factories in China?

O ring washer factories in China often use a variety of materials, including nitrile rubber (NBR), ethylene propylene diene monomer (EPDM), fluorinated rubber (FKM), silicone rubber, and other specialized compounds. These materials are chosen for their specific properties, such as oil resistance, temperature tolerance, and chemical resistance, to meet the needs of different applications.

Do Chinese o ring washer factories offer customization options?

Yes, many o ring washer factories in China provide customization options to meet your specific needs. You can get o rings and washers in various sizes, shapes, and materials based on your drawings or samples. Companies like Dongguan Hongju Silicone Rubber Products Co., Ltd. and Xingtai Shuoxi Trading Co., Ltd. offer OEM and ODM services, allowing you to tailor the products to your requirements.

What certifications and standards do these factories adhere to?

Chinese o ring washer factories often adhere to international standards and certifications such as ISO 9001, ISO 14001, and industry-specific certifications like UL, FDA, NSF, and more. For example, companies like Tianjin King Seal Co., Ltd. and XMBest Seal are ISO 9001 certified, ensuring that their products meet high quality and safety standards.

How do I ensure the quality of the products from these factories?

To ensure the quality of the products, you can request preproduction samples and quality certificates such as measurement reports, material data sheets, and certificates of origin. Many factories, like Jiangyin No.3 Rubber Manufacturer Co., Ltd., conduct rigorous quality checks and tests before shipping the products, and they also offer on-site service and support.

What are the typical payment terms and lead times for ordering o rings and washers from Chinese factories?

The payment terms usually include a deposit (often 50%) with the balance paid before shipment, or through letters of credit. Lead times can vary but typically range from a few days for prototype tools to around 5-7 days for production tools. For example, XMBest Seal offers lead times of 1-3 days for prototype tools and 5-7 days for production tools. Additionally, some factories may accept other payment methods like Western Union, Visa, or PayPal.