The choice of apparatus for obtaining finely dispersed powders with maximum grinding efficiency is the most important problem. As a rule, for this purpose, installations are used, which are a complex of grinding units. When designing grinding units, in addition to dispersion, size of pieces and mechanical properties of the initial material, it is necessary to take into account the requirements for the final product. A prerequisite for the implementation of developments in the industry are: the minimum possible cost of electricity and the duration of the technological process, the simplicity of design and operational reliability of the units.