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High Pressure Grinding Roll (“HPGR”) technology is applied to an increasingly diverse range of applications, predominantly iron, gold and diamonds.

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The application of High Pressure Grinding Rolls (HPGR) in the mining industry, especially as a replacement for the conventional Semiautogenous (SAG) milling process

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J o u r n a l P a p e r Introduction High pressure grinding rolls (HPGRs, also known as roller presses) are becoming well accepted for coarse, abrasive, and hard rock