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Modern Hydraulic Cylinders

Date: 17.10.19
Effective sealing in today’s demanding hydraulic applications requires seals and lubricants to work together. Trelleborg’s Lubrication Management technology approaches sealing from a comprehensive perspective, where each element complements the function of the entire system, leading to reduced wear, improved friction and extended product life. - By Jan Sklucki

ITG_Edition 38_Hydraulics_Solutions for Modern Hydraulic Cylinders_Hotspots-Hotspot

  1. ZURCON® DUALSEAL
    • Substitutes O-Ring and Back-up Ring in single product.
    • Unique geometry resists twisting, pulsing pressures and ingress of contaminants.

  2. TURCON® STEPSEAL® V LM
    • Notch balances pressure and allows rapid pressure actuation.
    • Elastomer O-Ring for pre-tension to meet hardware tolerances and movements
    • Contoured seal face ensures sealing performance, provides high lift to meet radial clearances and reduces contact force.
    • Tapered seal inlet limits peak contact pressure and controls lubrication.

  3. ZURCON® SCRAPER DA 24 VENTING VERSION
    • Axial holes prevent overpressure and blowout.
    • Robust scraper lip ensures high contact force and excludes even with radial deflections.

  4. ZURCON® GLYDRING® D
    • Lubrication grooves create closed reservoir to reduce friction.
    • D-shaped profile and two step seals prevent blow by and extrusion.
    • O-Ring energizer provides initial tension.

  5. ZURCON® RIMSEAL IM
    • Chamfer on low pressure side tilts seal for tight sealing.
    • Energizing O-Ring resists twisting, pulsing pressures and ingress of contaminants.
    • Zurcon® Z13 material gives superior wear and hydrolysis resistance.

SURFACE FINISHING

When considering the whole system, the texture and roughness of mating surfaces are as important as the products themselves. Valleys are essential to developing a fluid film to reduce friction and wear, but an open profile, with many peaks, can cause excessive wear.

Devoting a high level of research and development into the analysis of surfaces, counter surfaces and lubrication, Trelleborg Sealing Solutions can advise on the optimum surface coatings and finishes for your applications.

DISCOVER MORE

Get a deeper understanding of how it all works:

Read the “Revolutionizing Hydraulic Sealing” brochure at www.tss.trelleborg.com/literature