A crusher is a machine designed to reduce large rocks into smaller rocks, gravel, or rock dust. Throughout most of industrial history, the greater part of crushing and mining part of the .. In earlier years the practical use of HSI crushers is limited to soft materials and non abrasive materials, such as limestone, phosphate,
Cutting, crushing and loading rock in a single operation Become acquainted with the operating principle and technical components of the surface mining . bauxite, limestone or granite, achieving high degrees of purity in the process.