Abstract: A cart cleaning machine has a foundation, a dock, a movable gantry, and a bellow assembly. The foundation has a cart path spanning the length of the foundation between a first end and a second end. Two side channels are also provided. A dock is stationarily mounted to the foundation. The dock has the shape of an inverted U to allow carts to pass through. The dock has a controller, a water inlet, an electrical hookup, a chemical station, and line management devices. The movable gantry is movable with respect to the foundation. It has a drive mechanism with sprockets that interact with bands spanning between the foundation ends. The gantry has spray nozzles and blow off openings. The bellow assembly is between the dock and the gantry. Water and electric lines pass through the bellow assembly and span between the dock and movable gantry.