In industry, the commonly used high-efficiency coarse shredders mainly include the following:
1. Hammer crusher: Hammer crusher uses a high-speed rotating hammer to strike and shear the material, suitable for crushing brittle materials below medium hardness, such as coal, limestone and so on. Its structure is simple, easy to maintain, high crushing efficiency, but the noise is larger, wear faster.
2. Jaw crusher: Jaw crusher through the extrusion between two jaw plates to break materials, suitable for crushing various hardness of materials, including metal ore, glass, etc. The crushing force is large, the crushing ratio is high, but the energy consumption is large.
3. Cone crusher: Cone crusher is suitable for medium hardness and medium viscosity materials, such as quartz stone, limestone, iron ore, etc. It consists of a conical shell and an internal rotating crushing head, the material is pressed between the crushing head and the shell wall, through the rotation of the crushing head, a vortex is formed in the material, so that it is gradually broken into small pieces and discharged through the screen.

4. Impact crusher: The impact crusher is mainly used for medium fineness crushing of thick and fine concentrated materials, which is broken through the collision between the impact plate and the material on the high-speed rotating rotor.
These high-efficiency coarse crushing machines have their own characteristics and are suitable for different material crushing needs. In the selection, should be based on the nature of the material, crushing requirements and production conditions for comprehensive consideration, choose the most suitable crusher model.
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