Product Description: The NGM-5 internal combustion rail grinder is a specialized tool for grinding rail tops, sides, and arcs. It is suitable for contour grinding of welds, uneven joints, railside flash, and rail surface weld repairs on rails weighing 43-75 kg/m. It offers easy operation, high efficiency, excellent grinding quality, and convenient on- and off-track operation, meeting the insulation requirements of track circuits. It is an essential tool for railway maintenance, overhaul, and emergency repairs.