Are you in the market for high-quality O-rings and wondering where to find the best manufacturers in China? With countless options available, choosing the right factory can be overwhelming. Understanding the top O-ring custom factories is crucial for ensuring you receive durable, reliable products that meet your specific needs. By comparing these factories, you can save time and money while securing the best quality for your projects. Ready to discover the leading O-ring manufacturers that can elevate your business? Let’s dive in and explore your top options!

Custom Rubber Seals & O-rings Manufacturer | Haisun Rubber

Product Details: HAISUN manufactures precision O-rings such as NBR, HNBR, AMQ, FKMT, EDPM, ACM, and CR, and supplies standard O-ring parts and O-ring kits.

Technical Parameters:
– O-ring dimension accuracy tolerance up to 0.01mm
– Rubber seals accurate tolerance up to 0.02mm

Application Scenarios:
– Used in smartphones, watches, automotive parts, medical devices, food machinery,…
– Suitable for applications requiring dust and water resistance.

Pros:
– High precision and quality control in manufacturing.
– Wide range of materials and custom solutions available.

Cons:
– Limited information on specific performance characteristics.
– Potentially higher cost for custom solutions.

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

Product Details: O-rings are circular seals used to prevent the leakage of fluids and gases in various applications.

Technical Parameters:
– Material: Nitrile, Silicone, Viton
– Temperature Range: -40°C to 200°C

Application Scenarios:
– Automotive industry
– Aerospace applications

Pros:
– Effective sealing solution
– Wide range of materials available

Cons:
– Limited to specific pressure ranges
– Can degrade over time with exposure to certain chemicals

Custom O-Rings, Custom Molded O-Ring China Manufacturer – Savvy

Product Details: Custom O-Rings

Technical Parameters:
– Material: Various options available
– Size: Customizable dimensions

Application Scenarios:
– Sealing applications in machinery
– Used in automotive and aerospace industries

Pros:
– Durable and long-lasting
– Customizable to fit specific needs

Cons:
– Potentially higher cost for custom sizes
– Lead time may vary based on specifications

Custom O-ring Manufacturer and Wholesale Supplier – Hongju

Product Details: Custom silicone rubber O-rings and high-temperature O-ring seals for engines, pumps, cylinders, connectors, valves, etc.

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

Application Scenarios:
– Static applications
– 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

Rubber Seal Productions, OEM Rubber Parts|Tianjin King Seal

Product Details: Rubber Seal Productions, OEM Rubber Parts from Tianjin King Seal, including various types of seals such as O Rings, Oil Seals, Hydraulic Seals, and Custom Rubber Products.

Technical Parameters:
– Material options: NBR, FKM, Silicone, EPDM, HNBR, PU, SR
– Available sizes and custom designs based on client specifications

Application Scenarios:
– Automotive sealing applications
– Industrial machinery and equipment

Pros:
– High-quality materials suitable for various temperatures
– Custom design capabilities for nonstandard rubber seals

Cons:
– Price may not be the lowest in the market
– Limited information on specific product dimensions

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 O rings wholesale services.

Technical Parameters:
– One-stop O rings OEM/ODM solution.
– Various international O-Ring standards with most sizes already tooling.

Application Scenarios:
– Automotive industry.
– Hydraulic & Pneumatic applications.

Pros:
– Affordable factory direct price.
– Certificated compounds to meet specific markets.

Cons:
– Limited information on specific technical parameters.
– No detailed cons provided in the content.

Custom Rubber Seal O-Ring Manufacturers, Suppliers, Factory

Product Details: Rubber O-ring seals suitable for various mechanical equipment, providing sealing in static or moving states under specified conditions.

Technical Parameters:
– Temperature range: -60 ℃ to 220 ℃
– Pressure: up to 1500Kg/cm2 with reinforcing ring

Application Scenarios:
– Sanitary ware
– Automobiles

Pros:
– High sealing efficiency and versatility
– Cost-effective and easy to install

Cons:
– Limited to low-speed rotary sealing devices
– May require specific material selection for certain chemicals

China O-Rings, X-Rings, Back Up Rings Suppliers and Manufacturers …

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 properties

Custom Rubber Seals & O-Rings Manufacturer | HAISUN Rubber

Product Details: High-precision O-rings manufactured by Cixi Haisheng Rubber Products Co., Ltd. (HAISUN).

Technical Parameters:
– Registered capital: 15 million
– O-ring tolerance: ±0.01 mm

Application Scenarios:
– Smartphones
– Automotive parts

Pros:
– High production capacity: 50 million O-rings per day
– Customized products according to specific standards

Cons:
– Limited information on specific material properties
– Potential dependency on specific industries

High-quality O-rings By Haisun | Custom & Standard Parts

Product Details: NBR o-ring

Technical Parameters:
– Material stand by Reach, RoHS, FDA, PAHS, TSCA
– Tolerance: ±0.02mm

Application Scenarios:
– Manufacturing various oil resistant products
– Automotive parts and household appliances

Pros:
– Heat resistance
– Oil resistance
– Water resistance

Cons:
– Poor cold and ozone resistance
– Relatively high price

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Comparison Table

Company	Product Details	Pros	Cons	Website
Custom Rubber Seals & O-rings Manufacturer	Haisun Rubber	HAISUN manufactures precision O-rings such as NBR, HNBR, AMQ, FKMT, EDPM, ACM, and CR, and supplies standard O-ring parts and O-ring kits.	– High precision and quality control in manufacturing. – Wide range of materials and custom solutions available.	– Limited information on specific performance characteristics. – Potentially higher cost for custom solutions.
O-Rings, Rubber Seals – Best China Manufacturer & Supplier – Savvy	O-rings are circular seals used to prevent the leakage of fluids and gases in various applications.	– Effective sealing solution – Wide range of materials available	– Limited to specific pressure ranges – Can degrade over time with exposure to certain chemicals	savvyrubber.com
Custom O-Rings, Custom Molded O-Ring China Manufacturer – Savvy	Custom O-Rings	– Durable and long-lasting – Customizable to fit specific needs	– Potentially higher cost for custom sizes – Lead time may vary based on specifications	savvyrubber.com
Custom O-ring Manufacturer and Wholesale Supplier – Hongju	Custom silicone rubber O-rings and high-temperature O-ring seals for engines, pumps, cylinders, connectors, valves, etc.	– 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
Rubber Seal Productions, OEM Rubber Parts	Tianjin King Seal	Rubber Seal Productions, OEM Rubber Parts from Tianjin King Seal, including various types of seals such as O Rings, Oil Seals, Hydraulic Seals, and Cu…	– High-quality materials suitable for various temperatures – Custom design capabilities for nonstandard rubber seals	– Price may not be the lowest in the market – Limited information on specific product dimensions
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 O rings wholesale services.	– Affordable factory direct price. – Certificated compounds to meet specific markets.	– Limited information on specific technical parameters. – No detailed cons provided in the content.
Custom Rubber Seal O-Ring Manufacturers, Suppliers, Factory	Rubber O-ring seals suitable for various mechanical equipment, providing sealing in static or moving states under specified conditions.	– High sealing efficiency and versatility – Cost-effective and easy to install	– Limited to low-speed rotary sealing devices – May require specific material selection for certain chemicals	www.chinarubberseal.com
China O-Rings, X-Rings, Back Up Rings Suppliers and Manufacturers …	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 properties	www.sealsmanufacturer.com
Custom Rubber Seals & O-Rings Manufacturer	HAISUN Rubber	High-precision O-rings manufactured by Cixi Haisheng Rubber Products Co., Ltd. (HAISUN).	– High production capacity: 50 million O-rings per day – Customized products according to specific standards	– Limited information on specific material properties – Potential dependency on specific industries
High-quality O-rings By Haisun	Custom & Standard Parts	NBR o-ring	– Heat resistance – Oil resistance – Water resistance	– Poor cold and ozone resistance – Relatively high price

Frequently Asked Questions (FAQs)

What are custom factories in China?

Custom factories in China are manufacturing facilities that specialize in producing goods tailored to your specific requirements. They can create products based on your designs, materials, and specifications, allowing for a high degree of customization.

How do I find a reliable custom factory in China?

To find a reliable custom factory, start by researching online directories, trade shows, and industry referrals. Look for factories with good reviews, certifications, and a proven track record. It’s also helpful to request samples and visit the factory if possible.

What is the typical lead time for custom manufacturing in China?

Lead times for custom manufacturing can vary widely depending on the complexity of the product and the factory’s workload. Generally, you can expect a lead time of 2 to 8 weeks, but it’s best to discuss timelines with the factory upfront.

What are the minimum order quantities (MOQs) for custom products?

Minimum order quantities (MOQs) vary by factory and product type. Some factories may have low MOQs for simple items, while others may require larger quantities for more complex products. Always clarify MOQs before placing an order.

How can I ensure quality control when working with a custom factory?

To ensure quality control, establish clear specifications and standards before production begins. Consider hiring a third-party inspection service to check the products at various stages. Regular communication with the factory throughout the process is also crucial.