Are you in the market for high-quality O-rings and wondering where to find the best manufacturers in China? With countless factories claiming to offer the best products, it’s crucial to compare your options to ensure you make the right choice. Understanding the top O-ring factories not only saves you time and money but also guarantees that you receive reliable products that meet your needs. Ready to discover the leading manufacturers that can elevate your projects? Keep reading to uncover the top contenders and make an informed decision for your business!
China O-Ring Kits Suppliers – NNK oil seal
Product Details: NNK O-Ring Kits are high-performance and customizable O-Rings, machine tested for quality assurance.
Technical Parameters:
– Material: Nitrile (NBR), Fluorine rubber (FKM), Silicone (SIL), EPDM, Hydrogenat…
– Types: O-rings for stationary seals, reciprocating seals, and rotary seals
Application Scenarios:
– Machine tools
– Automobiles
Pros:
– Self-sealing effect with strong sealing capabilities
– Compact installation and lightweight structure
Cons:
– Limited to specific temperature ranges based on material
– Potential for wear over time in dynamic applications
China O Rings Manufacturers and Suppliers – SWKS Seal
Product Details: O Rings manufactured by Tianjin SWKS Technology & Development Co., Ltd, available in various materials including NBR, FKM, EPDM, and silicone.
Technical Parameters:
– Size: As Custom Drawing or Sample
– Material: PU, Silicone Rubber, VMQ, NBR, EPDM, FKM, Nitrile Rubber
Application Scenarios:
– Used in automotive applications for sealing
– Applicable in hydraulic and pneumatic systems
Pros:
– Customizable sizes and materials
– Competitive pricing and over 10 years of manufacturing experience
Cons:
– Limited information on specific performance metrics
– Potential variability in quality based on material selection
Custom O-ring Manufacturer and Wholesale Supplier – Hongju
Product Details: Custom O-rings and high-temperature O-ring seals manufactured by Hongju, suitable for engines, pumps, cylinders, connectors, valves, etc.
Technical Parameters:
– Material: Silicone rubber
– Hardness tolerance: ±3-5A, following ISO3601 standards
Application Scenarios:
– Sealing for engines and pumps
– Static and dynamic applications in various machinery
Pros:
– High-quality materials and precision molds
– Fast tooling and manufacturing times
Cons:
– Limited information on specific material types
– Potential variability in shipping times based on location
O-Rings & O-Ring Boxes – KDIK oil seals
Product Details: Wholesale O-Rings and O-Ring Boxes manufactured from various materials including silicone, viton, EPDM, and Buna, available in multiple sizes and custom options.
Technical Parameters:
– High resistance to temperature, chemicals, and wear
– Precision-engineered for secure sealing
Application Scenarios:
– Industrial applications requiring reliable sealing solutions
– Workshops and maintenance teams for quick repairs
Pros:
– Wide range of materials for different applications
– Custom sizes and material options available upon request
Cons:
– Limited information on specific size availability
– Potentially higher costs for custom orders
O Rings Manufacturer | O Rings Supplier – Hongjie Rubber Seal
Product Details: Wholesale O Rings in Bulk from Hongjie, a professional O rings manufacturer in China since 2000, offering custom options and factory direct prices.
Technical Parameters:
– Various international O-Ring standards available
– Certificated compounds to meet specific market requirements
Application Scenarios:
– Automotive industry
– Hydraulic and pneumatic systems
Pros:
– One-stop O rings OEM/ODM solution
– Affordable factory direct pricing
Cons:
– Limited information on specific sizes and materials
– Potential variability in quality based on supplier
FKM O Rings, China NBR O Ring supplier
Product Details: Quality FKM O Rings & NBR O Ring factory from Dongguan Ruichen Sealing Co., Ltd.
Technical Parameters:
– Material: NBR / Nitrile Rubber
– Hardness: 70±5 Shore
Application Scenarios:
– Used in hydraulic and pneumatic systems to prevent leaks
– Suitable for automotive, aerospace, oil and gas, and medical applications
Pros:
– Versatile and can be made from a wide range of materials
– Easy to install and replace
Cons:
– Requires regular inspection for wear and damage
– Performance can vary based on material choice
O-Rings, Rubber Seals – Best China Manufacturer & Supplier
Product Details: High-Quality Rubber O-Rings manufactured by Savvy, available in various materials including NBR, FKM, and Silicone.
Technical Parameters:
– Temperature Range: -70°C to 220°C
– Standard Hardness: Shore A 60-90
Application Scenarios:
– Used in hydraulic and pneumatic transmission systems
– Sealing applications in medical and food industries
Pros:
– Low manufacturing cost and convenient use
– Wide application and strong adaptability
Cons:
– Difficult to achieve zero leakage in dynamic seals
– Can be prone to cutting, twisting, and breaking if used improperly
Rubber O Rings – China Supplier, Wholesale
Product Details: Rubber O Rings available in various sizes and materials including NBR, FKM, and silicone.
Technical Parameters:
– Temperature range: -70℃ to 350℃
– Material options: NBR, FKM, silicone, neoprene
Application Scenarios:
– Automotive industry for sealing applications
– Heavy machinery and truck maintenance
Pros:
– High temperature resistance
– Durable and reliable sealing performance
Cons:
– Limited to specific applications based on material
– Potential for wear over time in high-stress environments
Top 10 O-ring Manufacturers and Suppliers in China (2024)
China Supplier, Wholesale – FKM O Rings
Product Details: FKM O Rings are high-quality sealing solutions made from FKM (Fluoroelastomer) material, known for their excellent chemical resistance and durability.
Technical Parameters:
– Material: FKM/FPM
– Hardness: 30 ~ 90 Shore
Application Scenarios:
– Automotive industry
– Industrial sealing applications
Pros:
– High temperature resistance
– Excellent chemical resistance
Cons:
– Higher cost compared to standard rubber seals
– Limited flexibility at low temperatures
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Comparison Table
| Company | Product Details | Pros | Cons | Website |
|---|---|---|---|---|
| China O-Ring Kits Suppliers – NNK oil seal | NNK O-Ring Kits are high-performance and customizable O-Rings, machine tested for quality assurance. | – Self-sealing effect with strong sealing capabilities – Compact installation and lightweight structure | – Limited to specific temperature ranges based on material – Potential for wear over time in dynamic applications | www.nokcn-seals.com |
| China O Rings Manufacturers and Suppliers – SWKS Seal | O Rings manufactured by Tianjin SWKS Technology & Development Co., Ltd, available in various materials including NBR, FKM, EPDM, and silicone. | – Customizable sizes and materials – Competitive pricing and over 10 years of manufacturing experience | – Limited information on specific performance metrics – Potential variability in quality based on material selection | www.svks-rubberseal.com |
| Custom O-ring Manufacturer and Wholesale Supplier – Hongju | Custom O-rings and high-temperature O-ring seals manufactured by Hongju, suitable for engines, pumps, cylinders, connectors, valves, etc. | – High-quality materials and precision molds – Fast tooling and manufacturing times | – Limited information on specific material types – Potential variability in shipping times based on location | hongjusilicone.com |
| O-Rings & O-Ring Boxes – KDIK oil seals | Wholesale O-Rings and O-Ring Boxes manufactured from various materials including silicone, viton, EPDM, and Buna, available in multiple sizes and cust… | – Wide range of materials for different applications – Custom sizes and material options available upon request | – Limited information on specific size availability – Potentially higher costs for custom orders | www.china-oilseals.com |
| O Rings Manufacturer | O Rings Supplier – Hongjie Rubber Seal | Wholesale O Rings in Bulk from Hongjie, a professional O rings manufacturer in China since 2000, offering custom options and factory direct prices. | – One-stop O rings OEM/ODM solution – Affordable factory direct pricing | – Limited information on specific sizes and materials – Potential variability in quality based on supplier |
| FKM O Rings, China NBR O Ring supplier | Quality FKM O Rings & NBR O Ring factory from Dongguan Ruichen Sealing Co., Ltd. | – Versatile and can be made from a wide range of materials – Easy to install and replace | – Requires regular inspection for wear and damage – Performance can vary based on material choice | www.o-ringsseals.com |
| O-Rings, Rubber Seals – Best China Manufacturer & Supplier | High-Quality Rubber O-Rings manufactured by Savvy, available in various materials including NBR, FKM, and Silicone. | – Low manufacturing cost and convenient use – Wide application and strong adaptability | – Difficult to achieve zero leakage in dynamic seals – Can be prone to cutting, twisting, and breaking if used improperly | savvyrubber.com |
| Rubber O Rings – China Supplier, Wholesale | Rubber O Rings available in various sizes and materials including NBR, FKM, and silicone. | – High temperature resistance – Durable and reliable sealing performance | – Limited to specific applications based on material – Potential for wear over time in high-stress environments | www.rubberoil-seal.com |
| Top 10 O-ring Manufacturers and Suppliers in China (2024) | hongjusilicone.com | |||
| China Supplier, Wholesale – FKM O Rings | FKM O Rings are high-quality sealing solutions made from FKM (Fluoroelastomer) material, known for their excellent chemical resistance and durability. | – High temperature resistance – Excellent chemical resistance | – Higher cost compared to standard rubber seals – Limited flexibility at low temperatures | www.o-ringsseals.com |
Frequently Asked Questions (FAQs)
What are O-rings and their common uses?
O-rings are circular seals made from various materials, primarily used to prevent leaks in mechanical systems. You’ll find them in applications like automotive engines, plumbing, and industrial machinery. Their versatility makes them essential in many industries, ensuring a tight seal between components.
Why should I consider sourcing O-rings from factories in China?
Sourcing O-rings from China can be cost-effective due to lower manufacturing costs. Many factories offer high-quality products and can handle large orders, making them ideal for businesses looking to scale. Plus, you’ll find a wide variety of materials and sizes available.
How do I ensure quality when ordering O-rings in bulk?
To ensure quality, always request samples before placing a bulk order. Check for certifications and reviews of the factory. Establish clear specifications for the O-rings, including material, size, and hardness, to avoid any misunderstandings during production.
What is the typical lead time for bulk O-ring orders?
Lead times can vary based on the factory and order size, but generally, you can expect 2 to 4 weeks for production. It’s a good idea to discuss timelines upfront and factor in additional time for shipping, especially if you’re importing.
Are there minimum order quantities (MOQs) for O-rings?
Yes, most factories have minimum order quantities, which can range from a few hundred to several thousand pieces, depending on the manufacturer. You should inquire about MOQs when contacting factories to ensure they align with your needs.
