When installed on the Westfield MK swing-hopper auger, the hydraulically driven PowerSwing Swing-Hopper Mover can locate the hopper exactly where it's needed, regardless of terrain. A lever located over the auger controls the hydraulic oil flow to turn the wheels, making for easy operation when the hopper is under the unloading truck. The Mover comes in three sizes—8, 10, and 13 inches.