O ring cord

Our O ring cord is manufactured through precision extrusion to ensure smooth surfaces, stable dimensions, and consistent sealing performance. Whether you need rubber cord for hydraulic systems, pneumatic applications, industrial machinery, or prototyping, our extruded cord products offer durability and flexibility for a wide range of operating conditions.

  • Metric sizes: 1.0 mm – 50 mm

  • Custom lengths or full spools

  • Vulcanized or glued O-ring fabrication

The O ring cord is ideal for creating custom O-rings (large O rings) when standard sizes do not meet groove requirements.

Category:

Material Options & Performance

NBR O-Ring Cord (Nitrile)
Perfect for oil & fuel resistance, commonly used in automotive, hydraulic cylinders, pumps, and heavy machinery.

EPDM O-Ring Cord
Excellent resistance to weather, ozone, steam, and high temperatures; ideal for outdoor systems and water applications.

FKM / Viton® O-Ring Cord
High chemical and temperature resistance; used in demanding environments such as chemical processing, motors, oil & gas systems.

Silicone O-Ring Cord
Wide operating temperature range from –60°C to +200°C. Medical, food-grade, and electronics options available.

Neoprene O-Ring Cord
Balanced resistance to weathering, cooling mediums, and mechanical wear.

Customization & Fabrication Services

QZSEALS offers complete customization based on your O-ring cord needs:

  • Cut-to-length supply

  • Vulcanized O-rings with strong, seamless joints

  • Glued O-rings for low-cost solutions

  • Bulk spools for maintenance and OEM use

  • Custom colors and hardness

For long-term sealing performance, vulcanized joints are recommended over glue joints.

cylindersmachine tools, spindle seals.

Applications

  • Consistent cross-section tolerance

  • High-quality elastomer materials

  • Competitive pricing with reliable stock

  • Fast shipping & stable production capacity

  • Support for OEM customized O-rings

  • Technical team to recommend materials & designs

We help customers choose the correct material, diameter, hardness, and joining method based on application temperature, chemicals, and pressure.

Standard sizes

1.00mm
1.50mm
1.60mm
1.78mm
2.00mm
2.40mm
2.50mm
2.62mm
3.00mm
3.50mm
3.53mm
4.00mm
4.50mm
4.70mm
5.00mm
5.50mm
6.00mm
6.35mm
6.50mm
7.00mm
7.50mm
8.00mm
8.50mm
9.00mm
9.50mm
10.00mm
11.00mm
12.00mm
12.70mm
13.00mm
14.00mm
15.00mm
16.00mm
17.00mm
18.00mm
19.00mm
20.00mm
22.00mm
23.00mm
24.00mm
25.40mm
28.00mm
30.00mm
31.00mm
35.00mm
40.00mm
45.00mm
50.00mm

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Our Advantages

Why Choose QZSEALS

Expert team providing technical consultation, custom solutions, and 24/7 support.

Wide Product Range

Hydraulic seals, O-rings, gaskets, and custom designs.

Strict Quality Control

International standards and 100% inspection before delivery.

Global Service

Exporting to 50+ countries with reliable logistics support.

Expert Support

Professional team for technical consultation and customized solutions.

Application Areas

QZSEALS products are trusted across a wide range of industries where reliability, precision, and durability are critical. Our sealing solutions are engineered to perform under extreme pressures, temperatures, and chemical exposure, ensuring long-term efficiency in demanding environments.

Application areas for QZSEALS products including construction, aerospace, marine, and automotive industries

Global Presence

Trusted by customers worldwide.

Capacity & Delivery

Fast, efficient, 7-day lead time

Quality Control

Reliable, high-standard products

Professional Team

24/7 expert support