Simmons Equipment’s Un-A-Hauler® family of high-capacity, extremely reliable battery-powered coal and mineral haulers are built to ensure optimum productivity. Competitive payload capacity, superior maneuverability, and improved cycle time efficiency are just some of the unique performance features of these flexible batch haulage vehicles. Mine operators have the flexibility to operate 3 to 5 haulers behind the continuous miner which allows for driving deep rooms off of sections and enhanced perimeter mining.  These units are powered by highly efficient VFD drive systems for optimum, dependable performance.