NQG-5.8 type internal combustion rail cutting machine is a kind of maintenance tool for public works. It not only has fast cutting speed and high quality, but also has low grinding wheel wear. It is locked by rail clamps. It has simple structure, light weight, convenient operation, Safe and easy to move. Suitable for public repairs, repair of broken rails in seamless lines, and for cutting rails in long-gauge welding plants. The imported small gasoline engine is used as the power, and the power is transmitted to the grinding wheel shaft through the pulley to drive the cutting wheel to rotate, so as to realize the purpose of cutting the rail. The main engine and the rail clamping device can be disassembled and easy to carry. It has the characteristics of small size, light weight, fast cutting speed, high cutting section accuracy, reliable rail clamping, and convenient use. Applicable to various types of rails from 43 to 75kg/m.