This machine is designed for all kinds of books, notebooks, exercise books, cards, banknote (pre-press) yin and Yang of paper products, such as rounded corners, chamfers punching. Can be arbitrarily changed by the various sizes of circular or flat-blade knife. In the original model based on a new air cushion, make jobs in the paper on the table and move light effort; electrical control system human-machine interface is used on a background surface positioning device can according to a certain order of automatic lifting Paper punching can be quick and accurate positioning.