The innovative, proprietary three-pallet system enables the use of fast fiber lasers without unnecessary waste of time for reloading the cut materials. During laser operation, the operator has the option, in addition to the automated cycle of reloading of the cut sheet metal sheets, also to manually load and unload elements from the third pallet. The optional loading-unloading system can be integrated both with the middle part of the changer and with the last pallet. Compared to the two-pallet system, the three-pallet changer integrated with the loading and unloading system allows even more flexible and more efficient operation of the entire laser cutting cell.