Ball/Pebble mills - This reliable, effective grinding technology dates back more than 200 years, and . Both the ball and pebble mills utilize a tumbling media, ball mills with steel.pebble grinding mill,Pebble mills | OutotecPebble mills are typically used for secondary grinding, where it is important to minimize processed mineral contamination.Mill (grinding) - Wikipedia, the free encyclopediaA rotating drum causes friction and attrition between rock pebbles and ore particles. May be used where product contamination by iron.
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