The APC automatic pallet changer replaces the table; it is suitable for quick replacement of the workpiece by preparation and setting of another workpiece during machining of the first workpiece. This significantly speeds up the machining. Conceptually, the pallet change system is based on the automatic change of the technological pallets between the pallet stations, which are equipped with a pallet changing mechanism, and a pallet clamping base on the machine saddle. The pallet is fixed to the clamping base by center bolts, and it is clamped by cup springs; unclamping of the pallet is hydraulic.

The automatic pallet changer is designed for machines WHN 110/130, WHN 13/15, WHR 13, MAXIMA I/II, and WHT 110/130.