Universal grinder using active and fixed fluted discs to see the high-speed relative motion, so that the material is crushed by the comprehensive effect of tooth impact, friction and crush between the material. This machine has the advantages of simple structure, strong, stable operation, good crushing effect, material is crushed can cavity, grain size obtained by changing different aperture sieve net mill directly by the host, in addition to the machine for stainless steel. The inner wall of the casing to all machined surface smooth, changed the previous models, the rough inner wall powder accumulation phenomenon, the medicine, food, chemical and other production more in line with national standards, to meet the requirement of GMP.