2005 SCHWING WP750-18E, 2005 SCHWING WP750-18E Concrete Pump, This an electric propelled unit that has been fully refurbished and modified for indoor use. It has all new wear parts, new oils and filters. All components have been tested and a pressure check has been conducted for any leaks in the system. This unit can pump big size aggregate, and up to 70 yards/hour. SHE IS READY TO PUMP!!