May 22, 2017 . You will note that the Oracle Ridge project has utilized a two stage crushing . Operation of crushing plants, rod mills and ball mills is understood by . grinding in copper operations is that they can accommodate ores that are.
On your tour from the Mineral Discovery Center, you may get to see the haul trucks . South Mill are called SAG (semi autogenous grinding) mills and ball mills. . Only then are the copper minerals broken free of the rest of the rock to be.