Wipers are mainly used in hydraulics and pneumatics before end seals on axially moved piston rods and plungers. The function of the wipers is to prevent dirt entering the hydraulic or pneumatic system, thereby protecting the seals, guides and bearings behind the wipers against wear and damage.
Single action wipers have a wiper lip pointing outwards. Depending on the design of the fitting area, wipers with or without metal case are used. Double wipers have a second sealing lip pointing towards the system, allowing them to wipe off a residual oil film. These wipers are also available with or without metal case
Wipers in FPM and EPDM as well as special grades are available for special operating conditions on request. Our application engineers will be glad to advise you.