Video: Building the world''s largest HPGR
Jan 21, 2016· ''s HRC™3000 is a new generation highpressure grinding roll that eliminates issues found in traditional HPGRs, allowing the mining industry to reach a new level of energy efficiency. Facts and figures The ore at Morenci is a porphyry copper deposit that has a Bond work index ranging from – 19 kWh/t and an ore hardness with an ...