Screw jacks handle heavy loads
The Pfaff-silberblau SHE-series worm gear screw jacks from Columbus McKinnon Engineered Products, Kissing, ensure reliable operation in the latest pavers of the global mechanical engineering company Linnhoff & Henne.
Only two worm gear screw jacks are required to handle the forces of 400 kN produced during the mechanical laying of mastic asphalt. The screw jacks featuring self-locking, grease-lubricated trapezoidal screws can be positioned very precisely at speeds of 150 mm/min thanks to a high ratio (32:1) and a stroke of 0.5 mm per revolution. The pavers from Linnhoff & Henne thus enable large-scale paving on car parks, bridges, roads, footpaths, multi-storey car parks and halls.
Pavers are used for the mechanical laying of mastic asphalt. They compact the mix evenly over the entire paving width to produce a closed and level path. In order to be able to lift loads of up to 40 tonnes, Linnhoff & Henne was looking for suitable worm gear screw jacks and opted for the SHE series from Pfaff-silberblau due to the high load capacity, reliability and excellent mounting options. Thanks to the robust housing and case-hardened and ground worm-drive shaft, the SHE screw jack element reliably and durably withstands high loads.
