INTENDED USE:Various farm applications, but primarily used as original equipment for manufacturers of shop cranes, lift tables and any equipment requiring a long hydraulic stroke.FEATURES:Same as bottle jack features but designed with larger hydraulic units and larger ram diameters to withstand side loads.Larger diameter pump pistons for faster rising action.Å“Parkerized”rams and flash chromed pump pistons inhibit rust.Safety bypass and overload systems prevent cylinder damage and prevent the jack from being used beyond the ASME/PASE load-limiting standard.