Specifications
- The Hallite 652 is a rod seal designed to provide a dry sealing solution specifically for heavy-duty longwall mining applications using water-based fluids. The design is also suitable for standard hydraulic oil applications.
- The seal is manufactured in a polyurethane housing energized by a high quality O-ring or, in some cases, a profiled NBR energizer as used in the Hallite 621 double-lip rod seal. The Hallite 652 also incorporates an acetal anti-extrusion ring to withstand extreme side loads and pressure peaks even with extrusion gaps, which result from the use of remote plastic support strips such as the Hallite 506 or 708.
- The Hallite 652 seal housing is molded in Hythane® 181, Hallite's high-performance polyurethane, for easy installation.
Field of application
Maximum speed: 1.0 m/s
Hydraulic oils temperature range: -45 to +110 °C
Temperature range Water-based fluids: -0 to +60 °C
Maximum pressure: 700 bar