Ever wondered where the best O-rings in the world come from? Many top-quality O-rings are made in China, but choosing the right factory can be tricky. Comparing top Chinese O-ring factories is crucial for securing reliable quality, competitive pricing, and timely delivery – vital for your business’s success. Knowing the best options saves you time, money, and headaches. Ready to discover the cream of the crop? Let’s dive into our comparison of the leading O-ring service factories in China!

Top 10 O-ring Manufacturers and Suppliers in China (2024)

Product Details: O-rings (standard and metric sizes), silicone rubber parts, gaskets, seals, keypads, grommets, neoprene gaskets, medical silicone products, plastic o-rings, gaskets, seals, extrusion parts, suction cups, grommets, hoses, hydraulic and pneumatic seals, encapsulated o-rings, auto power steering PTFE seals, hydraulic cylinder seals, rotary o-ring seal, stainless steel PTFE oil seal, cord oil seal, oil seals, hydraulic seals, rubber seals, liquid silicone rubber parts, pneumatic seals, silicone accessories, o-ring seal, rubber gaskets, oil seal covers, pump valve oil seals, hydraulic seals, o-ring seal, o-ring kit, bearing seal/strip, oil and wiper seal, sealing strips, rubber cords, EPDM rubber seals, square rings, rotary, scraper,

and piston seals, bonded seals, gaskets, oil seals

Technical Parameters:
– Size (standard and metric)
– Material (nitrile rubber, silicone, EPDM, Viton/fluorocarbon, etc.)
– Pressure resistance
– Temperature resistance
– Chemical resistance

Application Scenarios:
– Automotive industry
– Aerospace industry
– Construction industry
– High-tech equipment
– Medical equipment
– Chemical industry
– Valves
– Pipelines
– Hardware
– Military

Pros:
– Wide range of products
– Fast delivery
– Good customer service
– Low minimum order quantities (MOQs)
– Customization available
– Competitive pricing
– High-quality materials
– Well-equipped production facilities
– Export license
– International clients
– Extensive product categories
– Excellent quality assurance
– Hassle-free transportation
– Diverse material offerings
– No MOQ for customized parts

Cons:
– Insufficient information to list specific cons

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

Product Details: O-rings are circular cross-section rubber sealing rings used to seal various fluids (air, water, oil). Savvy Rubber manufactures standard and custom o-rings in various materials, including NBR, FKM (Viton), Silicone, EPDM, HNBR, CR, Aflas, FFKM, FVMQ, PTFE, Nylon, and PU. They offer encapsulated o-rings, backup rings, and x-rings.

Technical Parameters:
– ID (inside diameter), OD (outside diameter), CS/W (cross-section/width)
– Shore A hardness (40-90), standard hardness varies by material
– Temperature range varies by material

Application Scenarios:
– Hydraulic and pneumatic transmission systems
– Static and dynamic sealing in various equipment
– Medical and food industries (FDA silicone)

Pros:
– Simple structure, small size, compact installation
– Self-sealing, no periodic adjustment needed
– Low manufacturing cost and convenient use
– Wide application and strong adaptability

Cons:
– Large starting friction resistance in compression sealing
– Prone to cutting, twisting, and breaking if improperly used
– Difficult to achieve zero leakage in dynamic seals
– May require backup rings, dust rings, and lubricating accessories in some applic…

Custom Rubber Seals & O-rings Manufacturer | Haisun Rubber

Product Details: Custom rubber seals and high-precision O-rings. Specific types include NBR, HNBR, VMQ, FKM, EPDM, ACM, and CR O-rings; oil seals; rubber x-rings; rubber gaskets; rubber grommets; custom rubber parts; and O-ring kits.

Technical Parameters:
– O-ring tolerance up to ±0.01 mm
– Rubber seals tolerance up to 0.02 mm
– Reduced wire diameter to 0.08
– Reduced inner diameter to 0.14
– Reduced outer diameter to 0.3

Application Scenarios:
– Smartphones
– Watches
– Automotive parts
– Security systems
– Aerospace
– Communication equipment
– Medical devices
– Food machinery
– Electronic accessories
– Drinking water treatment
– Wastewater treatment

Pros:
– IATF16949 certified factory
– ISO Class-100,000 clean rooms for assembly and relubrication
– 30 years of expertise
– 50 million O-rings produced per day
– Complete manufacturing process including mold design, rubber mixing, vulcanizati…
– Strict testing on physical properties (tensile strength, aging resistance, compr…
– Materials passing third-party certifications like ROHS, REACH, FDA

Cons:
– Generic placeholder
– Generic placeholder

Top 10 O-Rings Manufacturers in China – News – qlrubber.com

Product Details: O-rings, quad-rings, V-rings, rubber balls, grommets, washers, gaskets, bumpers, bushings, plugs, bellows, extrusions, rubber hoses, O-ring cord, rubber seals, rubber dampers, molded rubber parts, rubber extrusions. Custom-made products are a large percentage of their business, with various materials including FKM, NBR, Silicone, EPDM, NR, PU, CR, HNBR, SBR, IIR, SEP, Fluorosilicone, Aflas, FFKM, and special mixtures.

Technical Parameters:
– Various sizes and materials
– Customizable designs and production

Application Scenarios:
– Aerospace
– Automotive
– Medical
– Construction
– Various industries

Pros:
– Wide range of products
– Custom solutions available
– Over 20 years of experience

Cons:
– No cons explicitly mentioned in the provided text

Top 10 O-Ring Manufacturers and Suppliers in China (2024)

Product Details: O-rings are circular cross-section sealants preventing leakage of liquids or gases in static and dynamic applications. Manufactured via injection, extrusion, and compression molding using materials like nitrile rubber, silicone, EPDM rubber, and fluorocarbon (Viton). Various types exist, including standard, encapsulated, backup rings, X-rings, and quad-rings.

Technical Parameters:
– Material (NBR, FKM, EPDM, silicone)
– Temperature Range (-40°C to 200°C, varies by material)
– Hardness (Shore A, 60-90)
– Color (varies)
– Pressure Resistance (varies by material and design)
– Customizability (size, shape, material)

Application Scenarios:
– Automotive
– Aerospace
– Medical
– General industrial

Pros:
– Cost-effective sourcing from China
– Access to advanced technology in China
– Wide range of materials and customization options
– Quick delivery and low tooling costs (some suppliers)

Cons:
– Generic placeholder for cons
– Generic placeholder for cons

Top O Rings Manufacturers in China – Custom Solutions | Suzhou Baoshida …

Product Details: O-rings manufactured by Suzhou Baoshida Rubber. Available in various sizes and materials including NBR, FKM, and Silicone. Custom orders are accepted.

Technical Parameters:
– Size (customizable)
– Material (NBR, FKM, Silicone, and others)

Application Scenarios:
– Automotive
– Aerospace
– Medical
– Chemical

Pros:
– High-quality materials
– Cost-effective
– Customizable solutions
– Quick responsiveness
– Efficient international trade and supply chain management

Cons:
– Lead times may vary depending on order quantity and customization
– Generic placeholder for con 2

China O Rings Manufacturers and Suppliers – Customized O Rings Factory …

Product Details: O-rings made from various materials including NBR, Silicone, Viton, EPDM, HNBR, and with PTFE coating options. Available in various sizes, including AS568 standard sizes, and custom sizes. Also offers X-rings (Quad Rings), Buffer Rings, and Encapsulated O-rings.

Technical Parameters:
– Size: As Custom Drawing or Sample
– Material: PU, Silicone Rubber, VMQ, NBR, EPDM, FKM, Nitrile Rubber, HNBR, Viton/…

Application Scenarios:
– Air conditioning compressors
– Automotive parts
– Hydraulic cylinders
– Mechanical keyboards
– Oil seals
– Vacuum pumps
– General sealing applications

Pros:
– Over 10 years of experience
– Customized service available
– Competitive price

Cons:
– Generic placeholder
– Generic placeholder

oil seals-o rings-made in china

Product Details: Oil seals, O-rings, custom gaskets, mechanical seals, cable glands, hydraulic UN/UHS, PTFE gaskets, O-ring kits, bonded seals, TB oil seals, FKM oil seals, silicone O-rings, NBR oil seals, NBR X rings, PTFE Glyd rings, WB2 seals, rubber feet, FKM ODU/UN, FKM ED rings, PTFE Stepseals, Grundfos seals, rubber gaskets, KDAS/DPM.

Technical Parameters:
– Various materials (FKM, silicone, NBR, PTFE etc.)
– Customizable shapes and sizes

Application Scenarios:
– Wide range of industrial applications
– Automotive, hydraulic, pneumatic systems

Pros:
– 18 years of manufacturing experience
– SGS and ASTM certified
– Affordable price and high quality
– Customization capability with CNC mold processing workshop
– Comprehensive customer service and technical support

Cons:
– None explicitly stated in the provided text

Silicone O-Ring – Yoson Seals

Product Details: Silicone O-rings, available in various sizes, colors (translucent, cream, light yellow, gray, red, blue, or custom), and hardnesses (30 Shore A, 40 Shore A, 50 Shore A, 60 Shore A, 70 Shore A, etc.), including EMI/RFI shielding, food grade, and medical grade options. Customizable to specific sizes, colors, and materials. Offered with various packaging options including ultrasonic cleaning, military packaging, and private labeling.

Technical Parameters:
– Hardness range: 10-70 durometers, Shore A (common range 40-70 Shore A)
– Temperature range: -60°C to 232°C (-75°F to 450°F)

Application Scenarios:
– Automotive
– Electronics
– Medical devices
– Food and beverage equipment
– Aerospace
– Oil and gas industry
– Faucet
– Compressor valves
– General sealing applications

Pros:
– Excellent sealing performance
– Waterproof
– Non-toxic and tasteless (food grade)
– Heat resistant (up to 232°C/450°F)
– Cold resistant (down to -60°C/-75°F)
– Good elasticity
– Ozone and UV resistant
– Long service life
– Customizable

Cons:
– Not recommended for use with most solvents, oils, strong acids, and concentrated…
– May have limitations in specific chemical environments

China O-ring Assortments Manufacturers, OEM/ODM Factory

Product Details: Cixi Youchuang Hardware Tool Co., Ltd. manufactures various hardware assortments, including O-ring assortments, grommets, tools (tap reseating tools, grommet tools), and furniture pads. They offer OEM/ODM services and produce over a million O-ring assortments annually. Specific products include O-ring sealing rings (various sizes), car fuse assortments (97 pc), adhesive PTFE glides, foam type PTFE adhesive pads, and various grommet tools (20 pc and 103 pc). They also offer tap reseating tools (YC-5001 and YC-5002).

Technical Parameters:
– Various sizes and styles available for most products
– Specific dimensions and materials vary by product; details available on product…

Application Scenarios:
– Manual DIY
– Machine repair
– Electrical repair
– Car repair
– Plumbing repair
– Home decoration
– Protecting floors and furniture from scratches
– Reducing noise levels
– Absorbing shocks
– Preventing slipping

Pros:
– Wide variety of products
– OEM/ODM services available
– High production volume
– Exports to numerous countries

Cons:
– Specific technical parameters not fully detailed in provided text
– No information on pricing or lead times

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Comparison Table

Company	Product Details	Pros	Cons	Website
Top 10 O-ring Manufacturers and Suppliers in China (2024)	O-rings (standard and metric sizes), silicone rubber parts, gaskets, seals, keypads, grommets, neoprene gaskets, medical silicone products, plastic o-…	– Wide range of products – Fast delivery – Good customer service – Low minimum order quantities (MOQs) – Customization available – Competitive pricing…	– Insufficient information to list specific cons	hongjusilicone.com
O-Rings, Rubber Seals – Best China Manufacturer & Supplier – Savvy	O-rings are circular cross-section rubber sealing rings used to seal various fluids (air, water, oil). Savvy Rubber manufactures standard and custom o…	– Simple structure, small size, compact installation – Self-sealing, no periodic adjustment needed – Low manufacturing cost and convenient use – Wide…	– Large starting friction resistance in compression sealing – Prone to cutting, twisting, and breaking if improperly used – Difficult to achieve zero…	savvyrubber.com
Custom Rubber Seals & O-rings Manufacturer	Haisun Rubber	Custom rubber seals and high-precision O-rings. Specific types include NBR, HNBR, VMQ, FKM, EPDM, ACM, and CR O-rings; oil seals; rubber x-rings; rub…	– IATF16949 certified factory – ISO Class-100,000 clean rooms for assembly and relubrication – 30 years of expertise – 50 million O-rings produced per…	– Generic placeholder – Generic placeholder
Top 10 O-Rings Manufacturers in China – News – qlrubber.com	O-rings, quad-rings, V-rings, rubber balls, grommets, washers, gaskets, bumpers, bushings, plugs, bellows, extrusions, rubber hoses, O-ring cord, rubb…	– Wide range of products – Custom solutions available – Over 20 years of experience	– No cons explicitly mentioned in the provided text	www.qlrubber.com
Top 10 O-Ring Manufacturers and Suppliers in China (2024)	O-rings are circular cross-section sealants preventing leakage of liquids or gases in static and dynamic applications. Manufactured via injection, ex…	– Cost-effective sourcing from China – Access to advanced technology in China – Wide range of materials and customization options – Quick delivery and…	– Generic placeholder for cons – Generic placeholder for cons	www.rubber-tools.com
Top O Rings Manufacturers in China – Custom Solutions	Suzhou Baoshida …	O-rings manufactured by Suzhou Baoshida Rubber. Available in various sizes and materials including NBR, FKM, and Silicone. Custom orders are accepte…	– High-quality materials – Cost-effective – Customizable solutions – Quick responsiveness – Efficient international trade and supply chain management	– Lead times may vary depending on order quantity and customization – Generic placeholder for con 2
China O Rings Manufacturers and Suppliers – Customized O Rings Factory …	O-rings made from various materials including NBR, Silicone, Viton, EPDM, HNBR, and with PTFE coating options. Available in various sizes, including…	– Over 10 years of experience – Customized service available – Competitive price	– Generic placeholder – Generic placeholder	www.svks-rubberseal.com
oil seals-o rings-made in china	Oil seals, O-rings, custom gaskets, mechanical seals, cable glands, hydraulic UN/UHS, PTFE gaskets, O-ring kits, bonded seals, TB oil seals, FKM oil s…	– 18 years of manufacturing experience – SGS and ASTM certified – Affordable price and high quality – Customization capability with CNC mold processin…	– None explicitly stated in the provided text	drorubber.com
Silicone O-Ring – Yoson Seals	Silicone O-rings, available in various sizes, colors (translucent, cream, light yellow, gray, red, blue, or custom), and hardnesses (30 Shore A, 40 Sh…	– Excellent sealing performance – Waterproof – Non-toxic and tasteless (food grade) – Heat resistant (up to 232°C/450°F) – Cold resistant (down to -60…	– Not recommended for use with most solvents, oils, strong acids, and concentrated… – May have limitations in specific chemical environments	www.yosonseals.com
China O-ring Assortments Manufacturers, OEM/ODM Factory	Cixi Youchuang Hardware Tool Co., Ltd. manufactures various hardware assortments, including O-ring assortments, grommets, tools (tap reseating tools,…	– Wide variety of products – OEM/ODM services available – High production volume – Exports to numerous countries	– Specific technical parameters not fully detailed in provided text – No information on pricing or lead times	www.cxyouchuang.com

Frequently Asked Questions (FAQs)

What types of O-rings do Chinese factories produce?

You’ll find a huge variety! Chinese O-ring factories produce O-rings in countless sizes, materials (like rubber, silicone, PTFE), and hardness levels. They cater to a wide range of industries, from automotive and aerospace to medical and food processing, so chances are they can meet your specific needs.

How can I ensure the quality of O-rings from a Chinese factory?

Thorough due diligence is key! Look for factories with ISO certifications (like ISO 9001) demonstrating quality management systems. Request samples for testing to verify material properties and dimensions meet your specifications. Consider on-site audits or using a third-party inspection service for extra assurance.

What are the typical lead times for O-ring orders from China?

Lead times vary depending on order size and factory capacity. Smaller orders might be fulfilled within a few weeks, while larger, more complex orders could take several months. Clear communication with the factory about your deadlines is crucial for avoiding delays.

What are the common payment methods used when ordering from Chinese O-ring factories?

Many factories accept various payment methods, including wire transfers, Letters of Credit (LCs), and sometimes even escrow services. Negotiating payment terms is common, so discuss options with your chosen factory to find a mutually agreeable solution. Always ensure secure payment channels.

What are the typical costs associated with importing O-rings from China?

The cost depends on factors like the quantity, material, and shipping method. You should factor in the price of the O-rings themselves, shipping costs (including freight, insurance, and customs duties), and any potential import taxes in your country. Getting multiple quotes is recommended for comparison.