S8 Rod Seals Pneumatic Hydraulic Seal

S8 Series Reinforced Fabric Rod Seals | High-Low Pressure Hydraulic Solutions

Engineered for extreme pressure versatility, the S8 Series Piston Rod Seal combines NBR/FKM elastomers with precision-laminated fabric reinforcement to master both low-pressure precision and high-pressure stability. Its patented U-ring structure – embedded with a rubber energizing element – delivers unmatched reliability in industrial hydraulics while maintaining exceptionally low friction.

Technical Specifications & Material Advantages

Critical Performance Benefits

1. Dual-Pressure Optimization

• Low-Pressure Sensitivity: Energizer maintains 0.15N/mm² lip force at near-vacuum

• High-Pressure Stability: Fabric reinforcement withstands 50 MPa spikes (validated in forging press tests)

2. Application-Specific Excellence

• Machine Tool Spindles: Eliminates stick-slip in <1m/s precision movements

• Mobile Hydraulics: Resists fabric delamination in excavator swing motors

• Paper Mill Cylinders: Laminated structure prevents steam penetration at 120°C

3. Industrial Longevity

• 3× longer service life vs. monolithic seals in abrasive environments

• 100,000+ pressure cycles in ASTM D4169 transport simulation

Installation & Handling Protocols

Non-Negotiable Requirements

1. Groove Finish: ≤Ra 1.6μm (ISO 1302) with 0.2mm min. edge radius

2. Installation Torque: 1.5-3.0 N·m (use calibrated torque wrench)

3. Contamination Control:

   • Wipe grooves with lint-free IPA wipes

   • Never lubricate fabric layers

Damage Prevention Measures

• Use split installation cones for diameters <25mm

• Apply temporary PTFE tape on sharp threads

• Verify groove DIN 3771/ISO 5597 compliance

Industry Adoption & Ordering

Proven Applications

• Steel mill hydraulic decalers (50 MPa shock loads)

• Agricultural combine harvester cylinders

• Pulp processing machinery with acidic media

Ordering Reference

• Standard: S8-100F (FKM variant for chemical resistance)

• NBR Economy: S8-100N

• Custom Sizes: S8-[Diameter]_[Height]

Compliance: REACH Annex XVII, RoHS 3, ISO 3601-3

*Warning: Non-compliant installation voids 24-month warranty*