The HL Ultrathan® rod seal is a friction-optimized sealing solution for mobile and stationary hydraulics featuring a unique functional principle. The single-acting rod seal with interference fit on the outer diameter has pressure-activated, cascading sealing edges for clearly reduced static and dynamic friction in hydraulic cylinders and higher effectiveness of hydraulic systems.

• Minimal break-away and dynamic friction and no stick-slip tendency ensures uniform motion even at low speeds.
• No stick-slip tendency in case of low sliding speeds.
• Low break-away and dynamic friction, even after prolonged standstill under high pressure.
• Constantly low dynamic friction throughout the part's service life.
• Insensitive to pressure peaks.
• Improved lubrication due to pressure medium deposit in the dynamic contact area.
• High extrusion resistance.
• Excellent media resistance in case of suitable compound selection.
• Suitable compounds available for special requirements of the chemical process industry.
• Suitable compounds available for special requirements of the food processing industry.
• Dimensions according to ISO 5597.
• Short axial assembly length.
• Installation in closed and undercut housings.
• Low compression set.
• Further dimensions of machined series with short lead times available.

Range of application:
Mainly for applications with increased requirements regarding friction and sliding behaviour in mobile and stationary hydraulics. The dimensions mainly conform to the requirements of ISO 5597 for housing and diameters respectively.