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One of the problems of defining the rational cutting modes of batch processing of different parts on multi-position multi-tool equipment is considered. It is assumed that the modes for identical parts should be the same and the modes for different parts could be different while maintaining the kinemat-ic relations between rotational speeds of the spindles of one spindle box. The mathematical model of the problem is developed. The model is aimed at minimizing the cost of batch processing taking into account the required throughput and technological constraints for each of the tools. The two-level de-composition approach to solve the problem is proposed.