Basics in Minerals Processing - 3:19. Technical data: Cone crushers – HP 3, 4 and 5 series . 3:40. Grinding – bonds work index ... goal is to produce rock or (more seldom) mineral fractions to be used as rock fill or ballast material for concrete and asphalt production.excellent work impact crusher used in rock mining,Crushing Rule of Thumb - Mineral Processing & Extractive MetallurgyDec 16, 2015 . Above 725 tonnes/hour, jaw crushers cannot compete with gyratory crushers at . Hence, they should not be used in hard rock mines that normally have . competent ores that display high Bond crushing work indices (CWi).
excellent work impact crusher used in rock mining