Through the dc motor driven grinding plate, using centrifugal force and forces and the reaction. Hammer blow type grinding centrifugal separators will smash cavity food waste shattered into 2 mm or so into the sewer particles. Crushing chamber with filter function, automatic intercept food solid particles; The knife dish with two blunt grinding hammer without a sword, safe, durable, grinding hammer can rotate, high efficiency, not easy card machine. The knife dish speed (full load, working state) of about 2750 to 2850 r/min, can quickly turn food trash away.