Probable reserves stood at 2.2Mt grading at 7.6% Zn, 3.0% Pb, 0.3% Cu and 84g/t Ag. . The rod mill oversize is recycled through a ball mill before re entering the . and the installation of an SAG mill to give better grinding performance in the . Samoa, San Marino, Sao Tome and Principe, Saudi Arabia, Senegal, Serbia.
. Center, you may get to see the haul trucks dumping ore into the crusher. Grinding . SAG mills use larger pieces of ore to break up the smaller pieces . Each ball mill is turned by a single 3,000 horsepower electric motor. . Only then are the copper minerals broken free of the rest of the rock to be separated by flotation.
Apr 18, 2018 . A SAG Mill trommel screen lets you control the true discharge size of your SAG mill or the transfer size to the downstream Ball Mill circuit. . The grates it provides to this Cu/Pb/Zn operation are 15mm X 30mm. . SAG and the Ball Mill will be buried is coarse oversize material it will not be efficient at grinding.