Contrx fixed height steel gantry cranes provide the most flexible lifting solution of any style crane. The portable gantry can be moved to the location of your load. Gantry cranes are ideal for use in aircraft, automotive, and marine repair shops. They also work well in warehouses, machine shops and loading areas. Heavy duty design, with welded tubular steel legs, and 4 steel roller-bearing swivel casters - 2 with brakes.