heavy load turner Werkzeugwechsel flat bed transport solution gripper_feed_series_X_with_electric_valve Schwerlasthandling Maintenance die manipulator push pull units PTT3 with pivot bearing sheet_metal_straightening_machine RM double_pull off decoiler Schwerlasthandling heavy_load_mainframe_turning_station high lift coil transport vehicle with carrying bolt compact strip feeding line Handlingsysteme