Working principle of high-efficiency coarse crusher: The coarse crusher adopts a vertical crushing mechanism, which is not limited by material viscosity, hardness, softness, etc., and can achieve good crushing effect on any material. The high-efficiency crusher is fed into the crushing chamber from the feeding hopper, and through the impact of the blade and the blade seat, the rotating blade and the fixed blade simultaneously shear and crush the material. Due to the centrifugal force placed, the material automatically flows towards the outlet.