... pad foot. The pad foot consists of three parts and mounted on the smooth drum surface of rollers such as ... LG514B, LG516B, LG518A, LG520A, LG522A, LG518D and LG520D. The pad feet can be arrayed in spiral. This ... of LG520A Padfoot Roller1. Mechanically driven, hydraulic vibration and hydraulic steering.2. Rexroth vibration pump, steering pump and vibration motor.3. 3-gear electrically ...