The conducted research is devoted to the study of the balance of forces affecting on the grain between cylindrical rolls of the small-size feed mincing unit used in farming enterprises. It is established that substantiation of design and process parameters of the feed mincing units, plotting the analytical dependences and

solution of process tasks are among the most important factors in manufacture of various versions of the unit. Using the obtained analytical solutions increase the efficiency of the works performed in this field. Recently, in the countries where the grain is harvested using the two-phase method, it is performed during the milk maturity period by pressing with special grinding machines immediately in the field, adding the conserving agent, preserving, packing into polyethylene bags, and then storing tight during winter. It is proven that the production costs for such nutritive grain feed reduce by 30% in contrast to the usual method. The grain stored in such a way is taken out of the grain bags and used directly for feeding the animals. The research work aimed at substantiation of design and process parameters of the small-size, low energy-intensive units for feed oakum production functioning on the basis of the grinding method in the conditions of farming enterprise is of great relevance. The work purpose is to study the balance of forces affecting on the grain between cylindrical rolls of the small-size feed mincing unit.