C1 Series Compact Piston Rod Seals | Precision NBR Seals for Hydraulic & Pneumatic Systems

C1 Series Compact Piston Rod Seals | Precision NBR Seals for Hydraulic & Pneumatic Systems

Meet the Type C1 NBR Piston Rod Seal—a game-changer for compact hydraulic cylinders and precision pneumatic equipment requiring minimal friction and maximum space efficiency. Engineered with ultra-slim cross-sections (40% narrower than standard rod seals), this seal eliminates the need for backup rings while delivering reliable performance in both oil and lubricated air systems. Its micro-contact sealing surface reduces friction by up to 35% compared to traditional designs, making it ideal for low-speed actuators, valve cores, and sensitive industrial automation equipment.

Technical Excellence & Versatile Performance
The C1 Hydraulic Cylinder Rod Seal excels in critical metrics:

• Pressure Range:

  • Hydraulic: ≤16 MPa (2,321 psi)

  • Pneumatic: ≤1.6 MPa (232 psi)

• Temperature Tolerance:

  • Hydraulic: -35°C to +100°C

  • Pneumatic: -35°C to +80°C

• Speed Capacity:

  • Hydraulic: ≤0.5 m/s | Pneumatic: ≤1.0 m/s (Low-speed rotors: V≤0.2m/s, P<2.0MPa)

• Material: Nitrile rubber (NBR) with dual hardness grades—SHA 90° (hydraulic) & SHA 80° (pneumatic) for optimized flexibility and wear resistance.

Compact Design, Broad Applications
Specially designed for confined spaces, the C1 Piston Rod Seal shines in:

• Industrial Automation: Valve spools, linear actuators in packaging machinery.

• Mobile Hydraulics: Compact excavator arm cylinders, agricultural sprayers.

• Pneumatic Systems: Food-grade equipment, medical device compressors.

• Low-Speed Rotors: Material handling systems with precise motion control.

Unlike bulkier alternatives, its oversized outer diameter ensures a "snap-fit" installation into standard grooves, while the self-adapting lip maintains ideal contact pressure without manual adjustments. The NBR formulation resists swelling in mineral oils and withstands intermittent steam cleaning—a critical advantage for FDA-compliant machinery.

Installation Simplified

1. Groove Compatibility: Pre-stretched outer diameter guarantees tight seating in ISO 3601-3 grooves.

2. Zero Backup Rings: Unique lip geometry prevents extrusion even at 16 MPa.

3. Speed Pairing: For pneumatic use above 0.2 m/s, pair with PTFE-coated rods (Ra ≤0.8μm).

Why Choose the C1 Series?

• Dual-Medium Ready: Seamlessly switch between hydraulic and pneumatic systems.

• Cost-Efficient: 20% lighter material usage reduces freight costs.

• Longevity: 50,000+ cycles in -35°C cold storage conveyor tests.