By Katie Weiler | September 28, 2010

The PS-4000 can place and spread aggregate base material; then can be converted to place and spread concrete. It comes as a two- or four-track model, and offers the option of a single conveyor that can be mounted to either side, or a twin-conveyor system mounted on both sides. The single conveyor can place and spread concrete to 43 feet wide, and the twin configuration increases width to 50 feet.