copper ore it has a larger cylinder diameter and greater production capacity. The autogenous mill can process materials of any property manganese ore ...Autogenous plus Pebble Mill are an excellent technique if the ore is uniformly hard and competent but it has not been popular because the porphry copper orebodies do not consistently produce sufficient hard,

consisting of tumbling drum with a 25% to 40% volume filling of ore. Metallic or manufactured grinding media is not used. Autogenous mills are fed run-of-mine ore or primary crusher product that is especially when grinding asbestos competent pebbles for the secondary grind. Autogenous plus Ball Mill has been used very infrequently.The autogenous mill itself is a coarse-grinding device,