The rail internal combustion rail sawing machine is a new generation of internal combustion rail cutting machine based on the original rail internal combustion rail cutting machine of our company. It is based on the actual requirements of the on-site construction unit, greatly reducing the weight and increasing the cutting speed. It is an ideal rail cutting tool for railway engineering, bridge, line overhaul and other departments. It is suitable for laying railways, line maintenance and emergency repairs, especially for cutting rails in sections and intervals without power supply. It can be applied to various specifications of rails, especially for 50kg/m-60 kg/m rails.