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SEG Series Tri-Material Piston & Rod Seals | All-Pressure Hydraulic Solutions
Precision-engineered for ultimate reliability, the SEG Series Hydraulic Cylinder Rod Seal combines NBR/FKM elastomers, fabric reinforcement, and precision-molded POM into a revolutionary U-cup design. Its integrated rubber energizer delivers zero-leak performance from vacuum conditions to 40 MPa while reducing friction by 45% versus conventional rod seals.
| Parameter | Specification |
|---|---|
| Materials | NBR/FKM + Fabric Laminate + POM Guide Band |
| Structure | U-Shaped with Rubber Energizing Element |
| Media Compatibility | Hydraulic Oil • Water • Oil-Water Emulsions |
| Temperature Range | -30°C to +120°C (FKM variant) |
| Key Properties | Chemical Resistance • Thermal Stability • Low Friction |
1. Dual-Pressure Mastery
Low-Pressure Sensitivity: Maintains 0.2N/mm² contact force at 0.5 MPa
High-Pressure Integrity: Fabric reinforcement withstands 40 MPa extrusion (ISO 10766-1 validated)
2. Tri-Material Synergy
POM Guide Band: Reduces friction coefficient to ≤0.05 (ASTM D1894)
Fabric Reinforcement: Prevents blowout in pressure spikes
NBR/FKM Energizer: Auto-adjusts lip force across temperatures
3. Critical Applications
Mobile Hydraulics: Excavator boom cylinders (resists mud/emulsions)
Food Processing: Stainless steel washdown pumps (FDA-compliant FKM)
Energy: Hydraulic pitch control systems in wind turbines
Installation Advantages
3-minute snap-fit installation (vs. 15+ min for tandem seals)
Single-unit design eliminates stacking errors
Damage Prevention Protocol
Groove Requirements: ISO 5597-1 profiles with Ra≤0.8μm finish
Edge Safety: Mandatory 0.5mm chamfer (DIN 3761)
Lubrication: Use water-soluble greases for water-based media
Failure Prevention Features
POM band prevents metal-to-metal contact
Anti-torsion fabric alignment ribs
| Industry | Benefit | Life Extension |
|---|---|---|
| Construction | Resists abrasive slurries | 3,000+ hours in excavator testing |
| Pharmaceutical | USP Class VI certification | 2x chemical resistance vs. PTFE |
| Marine | Saltwater hydrolysis resistance | 18-month service in tidal actuators |
Ordering Reference
Standard NBR: SEG-100N
Chemical-Resistant FKM: SEG-100F
Custom Sizes: SEG-[Dia]x[Height]-[Mat]
Compliance: REACH • RoHS 3 • ISO 3601-3
Pro Tip: Download our "Dual-Media Compatibility Matrix" for oil/water transition guidelines
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Main Product:
Hydraulic Seals,
Rod seals,
Piston Seals ,
Wiper Seals,
Hydraulic Seals Manufacturer,
Seals Supplier
