Roller crusher (double-roller crusher) is applicable for primary and medium crushing the brittle materials and clay materials in

industries of cement, chemical, electricity, mining, metalurgy, construction material, refractory, coal, and so on. With large feeding size

range and adjustable output size, it is able to crush materials with $ 160MPa compressive strength, such as the cement and silicate

industries. lt is usually replaced by cone crusher in metal mines. However, the roller crusher is stil being applied in smallscale mines or

precious ore mines to crush materials with little soil (e.g. Tungsten ore).