Paper # 25 Copper Mountain Overview on the .
The grinding process with one 34'' x 20'' SAG mill and two 24'' x '' ball mills will be briefly discussed. All three mills are gear driven by a ring gear, dual pinion and two low speed synchronous motors. Copper Mountain has installed on all three mills, the new stateofthe art dual pinion mill drives. All the inherent operation and maintenance features of this drive technology will be ...