The AM 44 is a single-acting wiper. Because it is pressed against the rod, dirt is wiped from the surface during the descent of the rod. On the outer diameter, a metal angle ring is vulcanised onto the TPU polyurethane body.
The metal caged ring ensures the correct functional fit of the wiper in the installation housing. Wipers made of TPU are well suited for application in mobile hydraulic systems which are subjected to heavy dirt loads. Due to the good wear resistance of Polyurethane, the AM 44 has a long service life.