Crusher - WikipediaA crusher is a machine designed to reduce large rocks into smaller rocks, gravel, or rock dust. ... Thus the maintenance rate is greatly reduced and production efficiency is .. For the most part advances in crusher design have moved slowly.designing an efficient rock crushing plant,P&Q University Lesson 7- Crushing & Secondary . - Pit and QuarryAug 5, 2015 . Lesson 7 of the Pit & Quarry University handbook discusses crushing and . HSI crushers are better suited for softer rock in the primary crushing stage. ... In addition, it reduces production and screening efficiency, as the whole .. Little has changed in basic crusher design over past decades, other than that.
designing an efficient rock crushing plant