O-ring seal Just in One Place - The Ultimate Solutions
Looking for an O-ring supplier? This ultimate guide will help you understand everything about wholesaling high-quality O-rings and sealing solutions.
About
Hi, I’m Serena from Hengoseal, an O ring seal supplier in China. We specialize in providing O-ring seals. With over 10 years of experience, we ensure top-notch sealing solutions that meet your needs.
We provide
- Low MOQ
- Fast delivery(Within 3days)
- Custom O rings
- High quality
- Competitive pricing

Table of Contents

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Why Purchase O-ring Seals from Us?
O-ring seals are crucial for ensuring leak-proof, reliable operation in many industries. If you’re looking for high-quality O-rings for your hydraulic, pneumatic, or other mechanical systems.

Here are a few reasons why you should consider purchasing from us:
- Wide Range of Materials: We offer O-ring seals in various materials such as NBR, FKM, EPDM, and PTFE to meet your specific needs, whether you need chemical resistance, high-temperature tolerance, or flexibility.
- Custom Solutions: Need a specific size or material? We can customize O-rings to your requirements.
- Reliable Supply: With years of experience, we guarantee the highest quality and consistency in each product.
- Competitive Prices: We offer competitive wholesale pricing, which ensures you receive excellent value for your investment.
Want to know how we can do business? Let’s talk!
Types of O-ring Seals
Hengoseal specializes in high-quality O-ring seals in bulk. Here are some of the popular O-ring seal types that our clients love:
We take pride in manufacturing durable and reliable products, ensuring that every O-ring seal is crafted to meet your exact specifications. Whether you need a specific material or customized size, we can provide the best solution for your needs.
- O-ring Seals:Common in hydraulic and pneumatic systems. Known for their versatile sealing in both static and dynamic applications.
- ED Seals:Ideal for fluid and gas sealing in high-pressure systems.
- Star Seals:Designed for higher-pressure sealing applications, these seals are known for their excellent performance.
- Custom Seals:Perfect for industries requiring flexible, precision seals.
O ring Size Chart
O-ring Type | Material | Inner Diameter (mm) | Outer Diameter (mm) | Cross-Section (mm) |
---|---|---|---|---|
O-ring | NBR, VMQ, FKM, EPDM | 3 to 300 | 5 to 350 | 1.5 to 4 |
ED Seals | FKM, NBR | 5 to 200 | 8 to 220 | 1.2 to 3 |
Star Seals | NBR, FKM | 6 to 250 | 10 to 270 | 1.6 to 5 |
PTFE Seals | PTFE | 10 to 300 | 15 to 350 | 2 to 6 |
Metric Combo | NBR, FKM, EPDM, Silicone + Steel | Custom Sizes | Custom Sizes | 2 to 10 |
Estimated O ring Price

Standard O-ring Seals: Typically $0.10 to $2.00 per unit depending on material and size.
Kristy Brooks

Specialized Seals:Prices range from $1.00 to $5.00 per unit.
Jason Mark

Custom Orders: Pricing for custom orders depends on the specifications such as material, quantity, and complexity.
Barbara Simonds
O RING
Estimated Manufacturing and Shipping Times
Our streamlined process guarantees quick turnaround times while maintaining superior sealing performance for all applications.
Manufacturing Time
1-5 business days (depending on order volume).
Custom Orders
Delivery time can be 5-10 business days for highly customized products.
Shipping Time
Typically 7-14 days for international orders, depending on your location.
Our promise
We are committed to providing quick and reliable service, ensuring your O-ring seals are delivered in the shortest time possible without compromising on quality.
The Whole Process of O-ring Seal Production
We work efficiently to deliver high-quality O-ring seals on time. Here’s a breakdown of the whole production process:

Design and Manufacturing Time
We design O-ring seals based on customer specifications and manufacture them using high-quality materials like NBR, FKM, and EPDM to ensure premium quality.

Quality Control and Testing
Every batch of O-ring seals undergoes strict quality control and testing to ensure pressure resistance and leak-proof performance, meeting industry standards.

Packaging and Shipping
Once production is complete, the O-ring seals are securely packed and shipped via reliable carriers to ensure timely delivery.

Customization and Adjustments
For custom orders, we precisely adjust the size and material of the O-rings to meet your specific requirements, ensuring a perfect fit.
O Ring seal you need to know
What materials are O-ring seals made from?
O-ring seals are commonly made from NBR, FKM, EPDM, VMQ, and PTFE. Each material is chosen based on its resistance to factors like heat, chemicals, and pressure.
Can I customize the size and material of O-ring seals?
Yes, we offer customizable O-rings to meet your exact specifications. You can specify the size, material, and quantity needed.
What is the typical lead time for O-ring seal orders?
Manufacturing takes approximately 5-10 business days, and shipping usually takes 7-14 days depending on the destination.
What are the most common applications for O-ring seals?
O-rings are widely used in hydraulic and pneumatic systems, automotive, and fluid sealing systems.
How can I find the right size O-ring?
We provide a detailed size chart for common O-ring types. If you need a custom size, simply provide us with your specific measurements.
Are your O-rings durable for high-pressure applications?
Yes, our O-rings are suitable for both static and dynamic high-pressure applications. We offer specialized seals for extreme environments.