This is perhaps the most precise press we have. Kraft (power) means that the cylinder is driven by an electric motor, and Luft (air) means that the printed sheet is returned automatically when the cylinder returns. A blade of air lifts it off the cylinder and lets it glide into the delivery tray. Very sophisticated. The picture below shows the air pump.

Korrex Nürnberg Kraft Luft C 0011
Korrex Nürnberg Kraft Luft C 0001
Korrex Nürnberg Kraft Luft C 0006