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High Pressure Grinding Roller Macadam Crusher

Used in mining applications for the last 30 years, high pressure grinding rolls hpgr reduce particles by compressing and crushing the feed between two counter rotating, parallel rollers with a small gap between them.This forces the rocks against each other and compresses the feeds density to 80 of its solid volume, exceeding its compressive strength with equal pressure being applied to particles of all.

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