The roller crusher has a simple structure and is mainly used for medium and fine crushing operations of ores in industrial departments such as cement and silicate. The crushing roller is the main working mechanism of the crusher, which is composed of a shaft, wheel hub, and roller skin. The roller crusher can be used for finely crushing various high and medium hardness ores and rocks in industrial sectors such as mineral processing, chemical engineering, cement, refractory materials, abrasives, and building materials.