Lets calculate/select/pick a new ball for your SAG mill.  Now, lets suppose you have a SAG Mill and Ball Mill that are not drawing full kW Power.  The SAG Mill has a “small” circulation load of oversize given be the 3/8″ trommel screen and the 1/2″ x 1 1/4″ discharge grates.  The load of 4″ balls … Read more