The output prediction of cone crushers has been focused on both by the aggregate producing industry and the mining industry us the demands for higher quality and lower costs increase, In this paper a method for prediction of cone crusher performance is presented. By using the method both product size distributions and total capacity can be predicted. By combining these results a Crusher Performance Map (CPM) is obtained The CPM is a description of crusher performance over sc, wide range of variation in the operational parameters. Therefore the CPM can be used for optimization and choice of operational machine parameters for an individual crusher as a part of a crushing plant.