O-Ring Seals – Industrial Rubber O-Ring Manufacturer
High-Performance O-Ring Sealing Solutions
O-rings are among the most widely used sealing elements in industrial equipment, hydraulic systems and mechanical assemblies. Their simple structure, reliable sealing performance and wide material compatibility make them suitable for both static and dynamic sealing applications.
High-quality O-rings can operate under a wide range of temperatures, pressures and media environments. Selecting the correct rubber material is essential to ensure optimal sealing performance and long service life.
O-rings supplied by SHAANXI GOLD-STONE are manufactured using advanced rubber formulations and precision molding technology. Our products provide excellent durability, dimensional stability and chemical resistance for demanding industrial sealing applications.
Technical Parameters
Working Pressure
| Sealing Type | Bore Size | Pressure Condition |
|---|---|---|
| Static Seal | < 50 mm | No backup ring required below 10 MPa |
| Static Seal | > 50 mm | No backup ring required below 5 MPa |
| Static Seal | / | Backup ring recommended when pressure > 5 MPa |
| Static Seal | / | Special retaining ring used for pressure up to 50 MPa |
| Dynamic Seal | / | No backup ring required below 5 MPa |
| Dynamic Seal | / | Backup ring recommended above 5 MPa |
Backup rings help prevent O-ring extrusion in high-pressure environments.
Motion Speed
- Maximum reciprocating speed: 0.5 m/s
- Maximum rotational speed: 0.5 m/s
Proper lubrication and material selection are recommended for dynamic sealing applications.
Temperature Range
Operating temperature range:
−60°C to 310°C
The actual temperature range depends on the rubber material and compatibility with the working medium.
Compatible Media
O-rings can be used with many industrial media including:
- Hydraulic oils
- Water and steam
- Industrial gases
- Chemical fluids
- Petroleum products
Extra-Large O-Rings
Large-diameter rubber O-rings are produced using segmented vulcanization technology, which enhances rubber structural integrity and prevents damage during bonding.
Advantages:
- Improved dimensional stability
- High chemical resistance
- Reduced mold cost
- Faster production cycle
Maximum specifications:
| Item | Specification |
|---|---|
| Maximum Inner Diameter | 1900 mm |
| Maximum Cross Section | 20 mm |
| Inner Diameter Tolerance | ±0.008 |
| Cross Section Tolerance | ±0.02 |
MINI O-Rings
Mini O-rings are manufactured using precision molds and optimized rubber formulations to meet micro-sealing requirements.
| Item | Specification |
|---|---|
| Minimum Inner Diameter | 0.5 mm |
| Maximum Cross Section | 0.5 mm |
These seals are widely used in precision instruments and compact mechanical components.
Available Materials
O-rings from SHAANXI GOLD-STONE are available in multiple rubber materials:
- FKM (Fluororubber) – excellent chemical and heat resistance
- NBR (Nitrile Rubber) – ideal for oil sealing
- HNBR – enhanced mechanical strength and oil resistance
- EPDM – excellent water and steam resistance
- VMQ Silicone Rubber – wide temperature range and flexibility
Applications
Our O-rings are widely used in:
- Hydraulic systems
- Oil and gas equipment
- Chemical processing equipment
- Automotive components
- Industrial machinery
- Pump and valve sealing systems