GM-6.0 type internal combustion rail grinding machine is powered by M165 two-stroke gasoline engine imported from Spain. It is a small tool for profiling and grinding the rail head after rail welding and rail damage welding. It is suitable for all types of rails from 43 to 75kg/m in base or on-site welding and grinding operations after rail head welding and repair. As a special tool for laying super-long seamless lines and repairing broken rails. This machine has reasonable design, compact structure, simple operation, convenient upper and lower lanes, high grinding efficiency, no power supply, flexible operation on site, and advanced technical performance. After profiling and grinding, the rail is not only flat, but also restores the original rail head profile.