To address a range of practical tasks, it is necessary to employ installations that implement complex rotational-oscillatory motion of working elements, such as the stator and rotor. These installations incorporate principles and effects of nonlinear wave mechanics in multiphase media. The internal resonance effects in the system are induced by the interaction between high-frequency vibrations generated by the high-speed rotor’s working elements and low-frequency torsional vibrations of the stator. The primary control task in designing such installations is associated with the selection of electromechanical motors capable of realizing complex rotational-oscillatory motion and constructing a control system for them. The research results presented herein demonstrate a specific solution to this problem in the design of an installation for the pulverization of lignocellulosic raw materials.