Rotary R511 Heavy-Duty Truck Tire ChangerRotary R511 Heavy Duty Truck Tire Changer Super Duty Commercial Changer Rotary's R511 Heavy Duty Truck Tire Changer gives the ability to service a wide range of wheels. The operating dimensions of the clamping unit and of the head tool carriage allows operation on a wide range of wheels, including service truck, bus, super single, agricultural, and lock ring. The controls, with lever type hydraulic distributors, enable user to regulate the speed of