Product detailed description

The double-acting piston seal K518 is a piston seal consisting of one NBR profile ring, two thermoplastic elastomer back-up rings and two glass-reinforced POM guide rings. K518 is widely preferred in mobile machinery, where the glass-reinforced POM guide rings provide better load-bearing properties in cylinders with longer strokes.

Benefits

• Excellent sealing performance and low friction thanks to the special design
• Excellent load capacity thanks to the special reinforced guide ring material
• No additional guide ring required in low and medium-load applications thanks to the compact design
• Simple groove in a one-piece piston
• long service life and easy installation

Field of application

• Agricultural machinery
• Construction machinery
• Mobile machinery
• Loading platforms
• Forklift trucks

The double-acting piston seal K518X is a high-performance compact piston seal consisting of one NBR profile ring, two thermoplastic elastomer support rings and two glass-reinforced PA guide rings. Among similar double-acting piston seals, K518X introduces a new design of TPE back-up rings with special geometry that increases extrusion resistance under the variable pressures of mobile hydraulic applications, and glass-fibre-reinforced PA guide rings that provide higher load capacity at higher temperatures.

Benefits

• Maximum extrusion resistance thanks to special TPE back-up rings
• Better resistance to high temperatures thanks to PA guide rings
• Advanced performance in long-stroke cylinders

Field of application

• Agricultural machinery
• Construction machinery
• Mobile machinery
• Loading platforms
• Forklift trucks

Dimensions: 50x34x20.5, 50-34-20.5, 50/34/20.5, 50 x 34 x 20.5 mm, 34x50x20.5, 34-50-20.5, 34/50/20.5, 34 x 50 x 20.5 mm.

Also searched as: U-cup, seal, U-cups, seals, hydraulic U-cup, hydraulic seal, Manschette, Dichtung, piston U-cup seal, piston seal, piston seals, Kolbendichtung, Kolbenmanschette, NBR, nitrile, perbunan, buna-N, POM, acetal, delrin, TPE.

Manufacturer designation: K518 050-034, K518 050 034, K518-050-034, K518 050/034.