Crusher Iron Ore Less Than 15

Autogenous mills crush the ore without the need for iron or steel grinding mediahey are used when the ore is hard enough for the tumbling ore to grind itselfn sag milling, 0 m 3 of 13 cm diameter iron or steel balls are added into the mill per 0 m 3 of ore i 15 vol steel to assist grindingag mills are much more common.

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