846

The Hallite 846 double lip pressure rod cleaner is developed specifically for cylinder applications in mechanical handling equipment, particularly those with long strokes, and is designed for use with venting U-rings, such as the Hallite 663 or Hallite 673 rod seal. The design minimizes oil transfer out of the ram on the cylinder rod by collecting traces of fluid passing through the rod seal.
The unique feature of the Hallite 846 is the Umbrella Wiper technology, which is a protective debris flap on the wiper lip that completely covers the stuffing box housing and prevents water/sludge buildup that is common with conventional wipers. This feature provides additional protection to the integrity of the hydraulic system by reducing corrosion and preventing contamination from entering the wiper housing groove and hydraulic cylinder bushing, which will result in longer system life.
Another special feature of the Hallite 846 wiper design is the thin membranes that vent when excessive fluid pressure is trapped between the wiper and the stem seal. This prevents the pressure from pushing the wiper out of its housing. After releasing this pressure, the membranes close to protect against contamination from the outside without the need for an expensive vent hole in the bushing.
Hallite 846 is molded in Hythane® 181, Hallite's high-performance polyurethane, for easy installation and excellent low-temperature performance and has a textured wiper lip to provide improved dry rod performance, particularly for long-stroke cylinder applications.