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High-Performance Hydraulic O-Rings & Sealing Solutions
LEADING HYDRAULIC SEAL MANUFACTURER FOR INDUSTRIAL APPLICATIONS
Engineering precision-molded O-rings designed to withstand extreme pressures and aggressive hydraulic fluids. Our solutions ensure zero-leakage performance in the most demanding hydraulic systems worldwide.
- High Pressure Resistance (Up to 25 MPa)
- Wide Temperature Range (-40°C to +200°C)
- Compliance with AS568 & ISO 3601 Standards
Specialized Sealing for Hydraulic Systems
Hydraulic systems operate under fluctuating pressures and temperatures, requiring seals that offer exceptional extrusion resistance and chemical compatibility. Our hydraulic O-rings are optimized for both dynamic and static sealing environments.
Dynamic Sealing
Engineered for reduced friction and minimal wear in reciprocating cylinders, ensuring smooth operation and extended service life.
Static Sealing
Reliable long-term performance in valves and manifolds, maintaining integrity under constant high-pressure loads.
Material Integrity
Formulated to resist swelling and degradation in mineral oils, HFA, HFB, and HFC hydraulic fluids.
Material Selection Guide
| Material | Technical Characteristics | Typical Application |
|---|---|---|
| NBR (Nitrile) | Standard for mineral oils; excellent abrasion resistance. | General hydraulic systems |
| FKM (Viton™) | High-temperature stability; superior chemical resistance. | Aggressive fluids & high heat |
| Polyurethane (PU) | Exceptional toughness and extrusion resistance. | High-pressure cylinders |
| EPDM | Ideal for phosphate-ester based hydraulic fluids. | Brake systems & fire-resistant fluids |
Technical Parameters & Standards
- Hardness: 70 Shore A to 90 Shore A
- Standards: AS568, BS 1806, ISO 3601, DIN 3771
- Pressure Rating: Up to 3600+ PSI (with Back-up Rings)
- Surface Finish: Precision ground to Ra < 0.8 µm
Answers to Common Queries
What is the best O-ring material for high-pressure hydraulics?
For high-pressure applications (above 1500 PSI), 90 Shore A NBR or Polyurethane (PU) are recommended due to their high extrusion resistance.
How do I prevent O-ring extrusion in hydraulic cylinders?
Use high-durometer materials (90 Shore A) and incorporate PTFE back-up rings to bridge the clearance gap under high pressure.
Are your O-rings compatible with fire-resistant hydraulic fluids?
Yes, we offer specialized EPDM and FKM compounds specifically tested for compatibility with HFD-R and HFD-U fire-resistant fluids.