Abstract <p>The increase in the efficiency of the RGU-P350 corrugating machine as part of a process line to produce corrugated sheet material by modernizing the control system of the corrugation unit is considered. The modernization includes synchronization of the speed of the feed shafts and synchronization of the corrugation shafts by angular position using a programmable logic controller for more accurate synchronization of servo drives. The proposed solutions will increase the productivity and reliability of the process line.</p>