The AM 54 is a single-acting wiper. Because it is pressed against the rod, dirt is wiped from the surface by the action of the rod as it retracts. On the outer diameter, a metal caged ring is vulcanised onto the TPU body.
The metal caged ring ensures the functionally correct fit of the wiper in the installation housing due to a press fit allowance. The design of the metal caged ring leaves only a small surface area open to attack by corrosive media. Wipers made of TPU are well suited for applications in mobile hydraulics which are subjected to heavy dirt loads. Due to the good wear resistance of Polyurethane, the AM 54 has a long service life. The AM 54 can also be used as a bolt wiper with swivel movements in mobile hydraulic systems.