3 phase automatic crushing plant, capacity 150 tph. 30 lakh. royal minerals processing systems. slag crusher plants. 12 lakh. star trace private limited, chennai. three phase limestone plants manufacturing, automation grade automatic.,rock crusher manufacturers suppliers in india,a crusher is a machine designed to reduce large rocks into smaller rocks, gravel, or rock dust. crushers may be used to reduce the size, or change the form, of waste materials so they can be more easily disposed of or recycled, or to reduce the size of a solid mix of raw materials (as in rock ore), so that pieces of different composition can be differentiated.