A novel PM-wear protection method to meet high comminution demands

High-pressure grinding roller presses have been used to an increasing extent in recent years for grinding cement because of their better energy utilization. However, the service life of the roller surfaces, an important factor in the cost-efficiency of high compression comminution, still needs to be improved. This formed the background for the introduction of a novel wear protection called HEXADUR®, in which a very hard, wear-resistant, roller surface is generated by a special combination and distribution of two different materials in a selected pattern. The new HEXADUR® wear protection system is based on a fundamental examination of the wear system occurring during high compression comminution.