Are you in the market for high-quality O-rings but unsure where to start? With countless factories in China, finding the right manufacturer can feel overwhelming. Understanding the top O-ring makers is crucial, as it can significantly impact your product’s performance and reliability. By comparing these factories, you can ensure you choose a partner that meets your quality standards and budget. Ready to discover the best options available? Dive into our comprehensive comparison and make an informed decision that will elevate your projects!

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

Product Details: O-rings made from various materials including nitrile rubber, silicone, EPDM, and Viton, used for sealing applications in multiple industries.

Technical Parameters:
– Standard and metric sizes available
– Customizable materials and designs

Application Scenarios:
– Automotive industry
– Aerospace and medical equipment

Pros:
– Wide range of products
– Customization options available

Cons:
– Minimum order quantities may apply
– Quality may vary by manufacturer

Xiamen Xlong Seal Co.,Ltd 厦门旭隆密封件有限公司

Product Details: O-rings, Rubber strip, molded parts, Spring seals designer and manufacturer

Technical Parameters:
– Various sizes and materials available
– Temperature resistance up to 300℃

Application Scenarios:
– Fluid Power
– Auto Parts
– Oil and Gas
– Food Beverage Pharmaceutical and Medical
– Hydraulic System

Pros:
– High-quality elastomer seals
– Customizable solutions

Cons:
– Limited information on specific product specifications
– Potentially higher cost for custom orders

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
– Durable and resistant to various chemicals

Cons:
– Potentially higher cost for custom orders
– Limited availability of certain materials in specific regions

China O-Ring Kits Suppliers – NNK oil seal

Product Details: NNK O-Ring Kits are high-performance and customizable O-Rings suitable for various applications.

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 design

Cons:
– Limited to specific temperature ranges based on rubber material
– Potential for wear over time in dynamic applications

FKM O Rings, China NBR O Ring supplier

Product Details: Quality FKM O Rings & NBR O Ring factory from China. Various types of O rings including Silicone, EPDM, and custom rubber parts.

Technical Parameters:
– Material: NBR / Nitrile Rubber, FKM, Silicone
– Hardness: 30-80 Shore A, 70±5 Shore

Application Scenarios:
– Used in hydraulic and pneumatic systems to prevent leaks.
– Applicable in automotive, aerospace, oil and gas, and medical industries.

Pros:
– Versatile sealing solutions suitable for various applications.
– Easy installation and replacement.

Cons:
– Regular inspection required for wear and damage.
– Material selection must match specific application requirements.

Custom O-ring Manufacturer and Wholesale Supplier – Hongju

Product Details: Custom O-rings and high-temperature O-ring seals manufactured from certified materials.

Technical Parameters:
– Hardness tolerance: +/- 3-5A
– Dimensions and tolerances follow ISO3601 standards

Application Scenarios:
– Sealing for engines, pumps, cylinders, connectors, valves
– Static and dynamic applications

Pros:
– Inexpensive and effective sealing solution
– Wide selection of stock items and customization capabilities

Cons:
– Limited information on specific material properties
– Potential variability in manufacturing time based on quantity

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 to 90

Application Scenarios:
– Used in hydraulic and pneumatic transmission systems
– Suitable for sealing various fluids such as air, water, and oil

Pros:
– Low manufacturing cost and convenient use
– Self-sealing effect with no need for periodic adjustment

Cons:
– Difficult to achieve zero leakage in dynamic seals
– Improper use can lead to cutting, twisting, and breaking

Xiamen Seals Technology Co.,Ltd: China O-Rings, X-Rings …

Product Details: O-rings, X-rings, Back Up Rings, NBR O-Rings, Encapsulated O-Rings, Custom Rubber Parts, O Ring Kits

Technical Parameters:
– Material: NBR, EPDM, Silicone, FKM
– Sizes: Standard and Metric

Application Scenarios:
– Automotive industry
– Medical equipment

Pros:
– High-quality molded rubber products
– Wide range of applications

Cons:
– Limited information on specific product performance
– Potential variations in material quality

Perfluoroelastomer FFKM O ring Manufacturer – JST-Seals

Product Details: Perfluoroelastomer FFKM O ring Manufacturer – KALFLUO® 1680 with excellent resistance to chemical corrosion and a maximum operating temperature of 230 °C.

Technical Parameters:
– Hardness: Shore A 78
– Tensile strength: 15.9 MPa

Application Scenarios:
– Mechanical seal
– Pump

Pros:
– Excellent chemical resistance
– High-temperature tolerance

Cons:
– Limited size options
– Higher cost compared to standard O-rings

China O Ring Manufacturers and Suppliers

Product Details: NBR and FKM material O Ring in metric

Technical Parameters:
– Material: NBR and FKM
– Size: Metric

Application Scenarios:
– Aerospace
– Automotive

Pros:
– Efficient sealing element
– Wide range of applications

Cons:
– Limited to specific sizes
– May require specific installation techniques

Related Video

Comparison Table

Company	Product Details	Pros	Cons	Website
Top 10 O-ring Manufacturers and Suppliers in China (2024)	O-rings made from various materials including nitrile rubber, silicone, EPDM, and Viton, used for sealing applications in multiple industries.	– Wide range of products – Customization options available	– Minimum order quantities may apply – Quality may vary by manufacturer	hongjusilicone.com
Xiamen Xlong Seal Co.,Ltd 厦门旭隆密封件有限公司	O-rings, Rubber strip, molded parts, Spring seals designer and manufacturer	– High-quality elastomer seals – Customizable solutions	– Limited information on specific product specifications – Potentially higher cost for custom orders	www.oring-seal.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 – Durable and resistant to various chemicals	– Potentially higher cost for custom orders – Limited availability of certain materials in specific regions	www.svks-rubberseal.com
China O-Ring Kits Suppliers – NNK oil seal	NNK O-Ring Kits are high-performance and customizable O-Rings suitable for various applications.	– Self-sealing effect with strong sealing capabilities – Compact installation and lightweight design	– Limited to specific temperature ranges based on rubber material – Potential for wear over time in dynamic applications	www.nokcn-seals.com
FKM O Rings, China NBR O Ring supplier	Quality FKM O Rings & NBR O Ring factory from China. Various types of O rings including Silicone, EPDM, and custom rubber parts.	– Versatile sealing solutions suitable for various applications. – Easy installation and replacement.	– Regular inspection required for wear and damage. – Material selection must match specific application requirements.	www.o-ringsseals.com
Custom O-ring Manufacturer and Wholesale Supplier – Hongju	Custom O-rings and high-temperature O-ring seals manufactured from certified materials.	– Inexpensive and effective sealing solution – Wide selection of stock items and customization capabilities	– Limited information on specific material properties – Potential variability in manufacturing time based on quantity	hongjusilicone.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 – Self-sealing effect with no need for periodic adjustment	– Difficult to achieve zero leakage in dynamic seals – Improper use can lead to cutting, twisting, and breaking	savvyrubber.com
Xiamen Seals Technology Co.,Ltd: China O-Rings, X-Rings …	O-rings, X-rings, Back Up Rings, NBR O-Rings, Encapsulated O-Rings, Custom Rubber Parts, O Ring Kits	– High-quality molded rubber products – Wide range of applications	– Limited information on specific product performance – Potential variations in material quality	www.sealsmanufacturer.com
Perfluoroelastomer FFKM O ring Manufacturer – JST-Seals	Perfluoroelastomer FFKM O ring Manufacturer – KALFLUO® 1680 with excellent resistance to chemical corrosion and a maximum operating temperature of 230…	– Excellent chemical resistance – High-temperature tolerance	– Limited size options – Higher cost compared to standard O-rings	www.jst-seals.com
China O Ring Manufacturers and Suppliers	NBR and FKM material O Ring in metric	– Efficient sealing element – Wide range of applications	– Limited to specific sizes – May require specific installation techniques	www.indelsealing.com

Frequently Asked Questions (FAQs)

What types of O-rings can I find in Chinese factories?

You can find a wide variety of O-rings in Chinese factories, including those made from rubber, silicone, and other materials. They offer different sizes, shapes, and hardness levels to meet various industrial needs. Whether you need standard or custom O-rings, you’re likely to find what you’re looking for.

How do I choose the right O-ring manufacturer in China?

When choosing a manufacturer, consider their experience, production capacity, and quality control processes. Look for reviews and testimonials from previous clients. It’s also helpful to request samples to assess the quality of their products before making a larger order.

What is the typical lead time for O-ring production in China?

Lead times can vary based on the manufacturer and order size, but typically, you can expect production to take anywhere from 2 to 6 weeks. Custom orders may take longer, so it’s best to discuss timelines with your chosen factory upfront.

Are there minimum order quantities (MOQs) for O-rings?

Yes, most manufacturers have minimum order quantities, which can range from a few hundred to several thousand pieces, depending on the type and size of the O-ring. It’s important to clarify MOQs with the factory before placing your order to avoid any surprises.

What quality standards do O-ring manufacturers in China follow?

Many O-ring manufacturers in China adhere to international quality standards such as ISO 9001. They often conduct rigorous testing to ensure their products meet specific requirements for durability and performance. Always ask about their quality assurance processes to ensure you receive reliable products.