Paper 25 Copper Mountain Overview on the Grinding
Figure 1 Overview grinding circuit The Copper Mountain SAG mill is 10363 mm 34 feet in diameter and 6096 mm 20 feet long It is a grate discharge mill with an inside diameter of 10363 mm 34 feet and a grinding length of 5334 mm 175 feet The mill is driven by two 8500 horsepower ABB motors