INCREASING SAG MILL CAPACITY AT THE COPPER .
INCREASING SAG MILL CAPACITY AT THE COPPER MOUNTAIN MINE THROUGH THE ADDITION OF A PRECRUSHING CIRCUIT. ... The circuit consists of a 34'' x 20'' EGL SAG mill, a Raptor 900 pebble crusher and two 24'' x 39''6" ball mills. Each mill is equipped with a 2 x 8500HP dual pinion drive system. The plant was designed to process 1585 h mtpof SAG ...