Tramcar narrow-gauge railway transport vehicle mines transport coal, ore and waste rock and other bulk materials, are generally required traction locomotive or winch. Harvesters basic components: the frame include car beams, buffers and axis card. Car beam is the main bearing member tramcar. In addition to gravity and traction carriages tub outside Hebei coal mine, in operation to withstand great shock, vibration and other additional loads. Car manufacturing special steel beams in general. Tramcar narrow-gauge railway transport vehicle mines transport coal, ore and waste rock and other bulk materials Henan coal mine carts normally required traction locomotive or winch. Coal narrow gauge mine car safety: loading coal tub, refuse to allow loading of 90% when the volume of the tub. Such as water coal gangue can only load when the water volume of 70%. Coal mine car, you should use special materials, vehicles transporting materials long time underground, when transporting materials, the development of special safety measures.