gripper feeds AVP with electric valve gripper_feed_AVP_with_pneumatic_valve hydraulic_gripper_feeds_AVP indoor heavy load universal transport carts type 1 ground conveyor PTT3 with lifting hydraulics Schwerlasthandling indoor_universal_transport_cart pedestrian mover PTT3 without pivot bearing without lifting hydraulics ultra_compact_lines_for_coil_processing Werkzeughandling gripper_feed_series_X_with_pilot_valve Coilhandling heavy load special turning stations