HAUL OFF CATERPILLAR Sant robust construction caterpillar made of thick ms plates. The Cable tension is controlled through phneumatic cable closing cylinders. The pressure regulation on each belt is in dependant and adjustable by manometer. The belts are driven by a AC/DC motor with drive and coupled to a gearbox unit with two gear ration and one three speed gearbox. The power transmission between the two belts which is controlled by a gear belt which avoids any slippage. caterpillar are equipped with a set of horizontal and vertical guide rollers at entry and exit.