What Is Rail Grinding and Why Do Australian Rail Networks Do It?
Rail grinding is a maintenance technique that removes a small amount of metal from the surface of the rail head to restore the correct profile, remove surface defects, and extend the life of the rail. Australian networks use grinding to manage rolling contact fatigue, corrugation, gauge corner wear, and general surface deterioration before they reach the point of requiring rail replacement. This guide explains how rail grinding works, the different types used in Australia, when it is done, and what it actually achieves.