Broken is a high energy consumption of the operating process. The energy consumption includes the energy consumption in the jaw crusher drive, the deformation energy of the material particles before crushing, the surface energy of the new surface area of the broken product, the energy consumed by the change of the surface structure of the material particles, and the crystal structure of the material The energy consumed by friction and vibration between the media, the energy consumed by the charging or discharging phenomena, the kinetic energy required to transfer the elastic waves, the occurrence of a mechanochemical reaction or adsorption at the fracture point or the fracture surface of the material Energy consumption required.

Since crushing is a high energy-consuming and low-efficiency process for reducing particle size, studies on crushing theory have focused on power consumption and studied the relationship between input power and particle size before and after crushing.