The working principle of cheap wood crusher crushing machine is that the crusher machine bearing structure has a cutter head and a hammer piece thereon, and the hammer piece is one of the main components forming the sawdust. Generally, there are 4 knives or 6 knives on the cutter head. The motor drives the rotor to rotate, so that the cutter disc rotates to achieve the function of cutting materials. After the cutter cuts the material into chips and enters the crushing room, the hammer is continuously beaten to crush the raw materials into sawdust.