Screw jacks handle heavy loads

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.