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PSE Series High-Pressure Polyurethane Rod Seals | Universal Hydraulic Cylinder Solutions
Engineered for demanding industrial hydraulics, the PSE Series Piston Rod Seal delivers uncompromising performance in high-pressure systems up to 32 MPa. Crafted from 93 Shore imported polyurethane, this hydraulic cylinder rod seal excels in petroleum-based and emulsion environments while offering 3x longer service life than standard NBR seals.
Working Pressure: ≤32 MPa (4,641 psi)
Critical Note: Install retaining rings above 20 MPa
Temperature Range: -30°C to +80°C
Material Hardness: 93 Shore A (polyurethane)
Media Compatibility:
✅ Petroleum-based hydraulic oils
✅ Oil-water emulsions
❌ Not compatible with bio-oils/environmentally safe fluids
1. Extrusion Resistance
Reinforced lip geometry withstands 32 MPa surges
Integrated anti-extrusion ridge reduces backup ring dependency below 20 MPa
2. Extreme Environment Resilience
Maintains elasticity at -30°C (arctic mining equipment validated)
Resists hydrolysis in water-glycol emulsions (800-hour ASTM D471 testing)
3. Application-Specific Design
Excavator boom cylinders (20-32 MPa range)
Forging press piston rods with frequent pressure spikes
Marine deck machinery exposed to saltwater emulsions
Pressure-Specific Protocols
| Pressure Range | Installation Requirement |
|---|---|
| <20 MPa | Standard groove mounting |
| ≥20 MPa | Mandatory steel retaining ring |
Material Precautions
Avoid bio-oils - polyurethane degradation risk
Use phosphate-ester-compatible greases during assembly
Surface Pairing
Hard-chrome plated rods (HRC 60+)
Surface finish ≤0.4μm Ra (ISO 4288)
50,000+ Cycle Durability in 80°C emulsion testing
Zero Lip Deformation at 30 MPa with proper retaining rings
Cost Savings: Eliminates secondary wiper seals in dusty environments
Compliance: REACH SVHC-free, RoHS 3 certified
Technical Support Tip: Request our pressure calculator for retaining ring sizing guidance
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Main Product:
Hydraulic Seals,
Rod seals,
Piston Seals,
Wiper Seals,
Hydraulic Seals Manufacturer ,
Seals Supplier
