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TDI Series Hybrid Piston Rod Seals | Ultra-Low Friction Hydraulic Solutions
Engineered for precision and endurance, the TDI Series Hydraulic Cylinder Rod Seal revolutionizes performance through its patented PU-PTFE hybrid construction. Combining 93° or 95° Shore polyurethane with engineered PTFE, this piston rod seal delivers industry-leading friction coefficients (≤0.03) while maintaining exceptional elasticity and 40 MPa pressure stability.
| Parameter | Specification |
|---|---|
| Material Composition | 93°/95° Shore PU + PTFE friction layer |
| Working Pressure | ≤40 MPa (5,802 psi) |
| Temperature Range | -40°C to +100°C |
| Friction Coefficient | ≤0.03 (70% lower than standard PU seals) |
| Key Advantages | Near-zero leakage • 50,000+ pressure cycles • Instant cold-start performance |
1. Material Synergy Technology
PU Core: Provides 95% elastic recovery at -40°C (arctic equipment validated)
PTFE Surface: Reduces stiction force by 80% for precision servo systems
Dual Hardness: 93° Shore for shock loads • 95° Shore for high-pressure extrusion resistance
2. Critical Application Performance
Injection Molding: Maintains ≤0.5% leakage at 100°C/40MPa (ISO 6527)
Forklift Mast Cylinders: 3x lifespan in dusty environments vs. conventional rod seals
Servo Presses: Eliminates stick-slip in <0.1m/s precision movements
3. Industry-Leading Efficiency
Energy Savings: 15% reduced hydraulic power consumption (verified by TÜV Rheinland)
Maintenance Reduction: 18-month service intervals in continuous operation
Groove Requirements
Surface finish: ≤Ra 0.2μm (ISO 4288)
Edge radius: ≥0.3mm (DIN 3761)
Installation Protocol
Pre-Lubrication: Use phosphate-ester grease (compatible with PU/PTFE)
Thermal Compensation: Allow 0.1mm axial clearance per 25°C ΔT
Damage Prevention:
Avoid petroleum-based lubricants
Use installation cones for rods <30mm
Material Selection Guide
| Environment | Recommended Type |
|---|---|
| High Shock Loads | 93° Shore PU Version |
| Continuous 40MPa | 95° Shore PU Version |
| Chemical Exposure | PTFE-Enhanced Variant |
Construction Machinery
Resists grit embedment in excavator stick cylinders
98% leakage control after 5,000hr abrasive media exposure
Semiconductor Manufacturing
USP Class VI-certified for cleanroom hydraulics
Zero outgassing at 10⁻⁶ mbar vacuum
Renewable Energy
-40°C cold-start capability in wind turbine pitch systems
0.03 friction maintains positioning accuracy in solar trackers
Ordering Reference
Standard: TDI-80 (80mm rod)
Custom: TDI-80 110 5.3 (110mm OD x 5.3mm width)
Parker Interchange: TDHF2400M
Compliance: RoHS 3 • REACH SVHC-free • ISO 3601-3
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Main Product:
Hydraulic Seals,
Rod seals ,
Piston Seals,
Wiper Seals,
Hydraulic Seals Manufacturer,
Seals Supplier
