The TC790 is a shuttle car designed by Sandvik Mining and Construction for the underground coal and soft rock mining industry, to operate behind any continuous mining machine . The TC790 is electrically powered, equipped ......The TC790 is a shuttle car designed by Sandvik Mining and Construction for the underground coal and soft rock mining industry, to operate behind any continuous mining machine . The TC790 is electrically powered, equipped with variable frequency drive (AC) that provides infinitely variable speed for traction motors to shorten the driving cycles. Optimum comfort and safety for operators are provided due to a new developed chassis frame suspension system and a cabin conforming to the latest standards. Features and valuesNew developed chassis frame. Variable frequency drive (VFD) High constant torque from standstill. Less motor maintenance needed in comparison to standard DC-drives. (squirrel cage motor, no brushes) Infinitely variable transmission (IVT), soft start, easy manoeuvering. Higher speed, better turning capability. Less operator fatigue because of smoother operation Comfortable cut-off limit switch. (on board re-energizing)