Usage and characteristics: PCH type ring hammer crusher is most suitable for crushing various brittle materials, such as coal, coal gangue, coke, slag, red sandstone, shale, loose limestone, etc. The compressive strength of the material shall not exceed 100MPa The surface moisture should not exceed 8% -11%, and for non viscous materials, the surface moisture can be controlled within 15%. The structural feature of the ring hammer crusher is that it can adjust the particle size of the discharged material. When the product particle size is not allowed to be too large, this type of crusher should be preferred.