The additional designation 'CS' stands for the vetical panel saw of manufacturer Putsch-Meniconi for 'Clamping-System'.
Technically it's a panel-lifting system which lifts up the panels to-be cut by grippers integrated in the frame and holding it tight during the saw cut. With this trimming cuts become possible on the bottom side of the panel. Additionally panels don't have to be turned on the panel table any more when cutting on both sides.
Operating conditions of the CS - Clamping-/ Lifting system