Are you looking for the best o-ring manufacturers in China? With so many options available, choosing the right one can be overwhelming. In this article, we’ll compare the top o-ring factories in China, highlighting their strengths, product ranges, and what sets them apart. Let’s dive in and find the perfect fit for your needs.

Metric o store ring chart – Kin by Rice n Roll

Product Details: Kin by Rice n Roll is a family-run restaurant in Wauwatosa, Wisconsin, known for its Asian cuisine, particularly from Thailand and Japan. The restaurant is an extension of the Rice n Roll Bistro family and is passionate about serving homemade, fresh, and tasty food with a modernized look and authentic taste.

Pros:
– Variety of Asian dishes, including sushi, ramen, and other traditional Thai and…
– Family-run restaurant with a focus on homemade cooking.
– Modernized presentation of traditional dishes.
– Offers takeout, delivery, and reservations for parties of two or more.

Cons:
– Reservations are not available on Fridays and Saturdays; walk-in only.
– Tables will be released if the party is more than 5 minutes late.
– Limited reservation policy; reservations must be made at least 24 hours in advan…

O-ring size (no tooling charge)

O-Rings | China – Products | Parker NA

Custom O-Rings, Custom Molded O-Ring China …

Product Details: Savvy Rubber offers custom o-rings designed and produced in various cross-sections and shapes. These o-rings are defined as custom if their cross-section or outline shape deviates from standard o-ring sizes. Key details include the need for inner diameter (ID) and cross-section (CS) for round custom o-rings, and a detailed drawing for non-round shapes. Materials available include NBR, FKM, Silicone, and others. The o-rings are used in industries such as hydraulics, oil and gas, semiconductor processing, aerospace, food processing, and more. Savvy has strong cost control, offering high-quality custom o-rings at competitive prices in the China market.

Pros:
– Ability to design and produce custom o-rings in various cross-sections and shape…
– Strong cost control management, offering high-quality products at low prices
– Wide range of materials available, including NBR, FKM, and Silicone
– Customization options for color, hardness, and special features like barcodes an…
– Experience in serving multiple industries such as hydraulics, aerospace, and foo…

Cons:
– Higher price compared to standard o-rings due to the unconventional nature and l…
– Requires detailed communication and cooperation for non-standard shapes, which c…

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), FKM, EPDM, and Silicone. These kits are designed to provide a wide range of O-ring sizes for different applications, including sealing liquid and gaseous media in high-pressure environments. Each kit usually includes multiple sizes of O-rings, often organized and stored in a durable box. For example, kits like the 5A, 5B, and 5C from Kesaria Rubber Industries contain 382 pieces in 30 assorted sizes[1][2][4].

Pros:
– Provides a wide range of O-ring sizes for various applications
– Made from high-quality materials ensuring superior sealing performance
– Customization options available to meet specific requirements
– Enhances system efficiency by preventing leaks and reducing friction
– Suitable for many industrial applications, including static, dynamic, hydraulic,…

Cons:
– May not be suitable for safety-critical applications like automotive without pre…
– Higher quality kits can be more expensive compared to lower quality alternatives
– Storage and organization of the O-rings can be cumbersome if not properly manage…

China O Rings Manufacturers and Suppliers

Large diameter store rubber o rings – Kin by Rice n Roll

Product Details: Kin by Rice n Roll is a small, family-run restaurant located in Wauwatosa, Wisconsin. It is part of the Rice n Roll Bistro family and specializes in Asian food and sushi with a modernized look and authentic taste from across Asia, particularly Thailand and Japan.

Pros:
– Offers a variety of Asian dishes and sushi with modern and authentic flavors.
– Family-run restaurant with a passion for homemade, fresh, and tasty food.
– Provides takeout and delivery services.
– Reservations available for parties of two or more.

Cons:
– No reservations accepted on Fridays and Saturdays; walk-in only.
– Tables will be released if the party is more than 5 minutes late.

Ring Size Guide

Product Details: The ring size guide helps you determine your correct ring size using various methods. You can measure your ring size by using an existing ring, a printable ring sizer, or a piece of string or paper. The guide includes size conversion charts for different regions such as US, UK, Europe, and others. It also provides tips on how to ensure accurate measurements, like measuring when your fingers are warm and using the exact finger you plan to wear the ring on.

Pros:
– Multiple methods to determine ring size, including using an existing ring, a pri…
– Includes size conversion charts for various regions.
– Provides tips for accurate measurements, such as measuring warm fingers and the…

Cons:
– Measuring ring size can be tricky and may require multiple attempts for accuracy…
– Finger size can change with temperature, which may affect the measurement.

NBR O-Rings, Buna-N / Nitrile O-Rings – China Manufacturer

Product Details: Nitrile (NBR) O-rings are made from a copolymer of butadiene and acrylonitrile, with acrylonitrile content varying from 18% to 50%. This material is widely used due to its excellent resistance to petroleum-based oils, fuels, silicone greases, hydraulic fluids, water, and alcohols. NBR O-rings have a working temperature range of -40°F to 257°F (-40°C to 121°C) and hardness ranges from 40 Shore A to 90 Shore A.

Pros:
– Excellent resistance to petroleum-based oils and fuels
– High tensile strength and abrasion resistance
– Low compression set
– Good mechanical properties
– Low cost and widely available
– Can be formulated to meet FDA standards and other specific requirements

Cons:
– Not resistant to ozone, sunlight, or weather
– Decreased low temperature flexibility with higher acrylonitrile content
– Not suitable for highly aromatic fuels, non-polar solvents, or glycol-based brak…
– Limited high temperature resistance if formulated for low temperature flexibilit…

30-80 Durometer colored elastic large diameter o-rings

Product Details: The 30-80 Durometer colored elastic large diameter O-rings are made from 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 0.8mm to 572mm and cross-sections from 0.4mm to 17.27mm. They exhibit good elastic and resilient properties, and are resistant to high temperatures, abrasion, and oils. The O-rings are suitable for various applications, including excavators, and are manufactured by Melon Rubber&Plastics, a leading manufacturer in China.

Pros:
– Made from high-quality, durable rubber materials (NBR, Viton, Silicone).
– Wide range of sizes available (ID: 0.8~572mm, Cross Section: 0.4~17.27mm).
– High temperature resistance, abrasion resistance, and oil resistance.
– Good elastic and resilient properties.
– No tooling costs for existing sizes.
– Available in various commonly used materials.

Cons:
– No specific cons mentioned, but the suitability of the material for a particular…
– The need for precise material selection based on the application’s requirements…

Comparison Table

Frequently Asked Questions (FAQs)

Frequently Asked Questions About O-Ring Manufacturers in China

What materials are commonly used to make O-rings in Chinese factories?

Chinese O-ring manufacturers often use a variety of materials, including Nitrile (NBR), Fluorinated Rubber (FKM or Viton), Silicone (VMQ), Ethylene Propylene Diene Monomer (EPDM), and Hydrogenated Nitrile Butadiene Rubber (HNBR). Each material has its own unique properties and is suited for different applications, such as resistance to oil, heat, or chemicals.

Can I customize the size and shape of O-rings from Chinese manufacturers?

Yes, you can customize the size and shape of O-rings. Many Chinese manufacturers, like Savvy Rubber and Dongguan Hongju Silicone Rubber Products, offer OEM and ODM services, allowing you to specify the exact dimensions and shapes you need. They can produce both standard and non-standard sizes based on your drawings or specifications.

What is the typical minimum order quantity (MOQ) for O-rings from Chinese suppliers?

The minimum order quantity (MOQ) can vary depending on the manufacturer, but it is generally around 100-1000 pieces. Some companies, like Dongguan Hongju Silicone Rubber Products, accommodate orders with low MOQs, while others might have higher requirements for custom or non-standard sizes.

How do Chinese O-ring manufacturers ensure the quality of their products?

Chinese O-ring manufacturers ensure quality by using high-quality raw materials, advanced production methods such as injection molding and transfer molding, and rigorous testing procedures. Companies like Xiamen Lindas Hardware Industrial Co., Ltd. and Savvy Rubber also provide free samples for testing and have certifications like ISO 9001, ISO 14001, and TS 16949 to guarantee their product standards.

What kind of delivery services can I expect from Chinese O-ring suppliers?

Many Chinese O-ring suppliers offer prompt and efficient delivery services. They often have partnerships with courier companies to provide door-to-door delivery at favorable rates. Some manufacturers, such as Savvy Rubber, can arrange for immediate delivery of stocked items, ensuring you receive your O-rings quickly and conveniently.