High-speed grinder is a kind of high-energy and ultra-fine ball mill used in experiment and small batch production. The machine is beautiful, novel, compact and easy to operate. The machine can choose polyurethane ball mill tank, nylon tank, tetrafluoro tank, corundum tank, alumina tank, zirconia tank and stainless steel tank according to user's needs; the machine can grind materials in the form of wet or dry method; the machine adopts upper window cover, pressure support rod and movable caster for user's convenience; the planetary ball mill with frequency converter can display control frequency at the same time. Rate and rotational speed of ball mill. Refrigeration grinder can produce up and down oscillation and curved vortex oscillation. With the help of reciprocating vibration, impact and shearing of grinding beads (zirconia, steel beads, glass beads, ceramic beads), the freezing grinder can grind samples rapidly and uniformly. The frozen grinder can process 36 samples at a time. The grinding efficiency of hard-to-treat soil, hair, bone, teeth, stubborn bacteria, fungal cell walls and even sporophytes is very high, and the whole grinding process is short, and the integrity of biological molecules (DNA, RNA, protein) and drug molecules is retained. There is no cross-contamination between samples.