Piston wear ring HIS

rodmetal

The HIS wear rings have been developed in order to keep all the parts of the cylinder aligned (the rod with the head, the piston with the bore). They play an important role as they help the rod seal, the wiper and the piston seal working without any misalignments and at the same time they prevent any contact between the metal parts. The material, which has a very low friction factor, does not cause load losses (linearity). It endures deformations under heavy loads, as the softening point is close to the fusion point (it works at 115° C ). For an easier choice of the piston or rod guide, we suggest the use of this formula to find the wear ring length. Material The material is a polyacetalic resin reinforced with fibreglass. For working temperatures higher than 115° C, the material is a reinforced polyamidic resin. Compound reference for temp 115° C: R1 Assembling The assembling can be easily done since the wear ring is cut and extremely elastic. The chamfers on both sides have been studied to better insert the wear ring in the rod.