Automatic Paper Stack Flipping Machine is to loosen the single sheet paper pile before press and post-press to remove dust and reduce ink Odor. The edge of the paper is 90 degrees, change the special tray, the paper pile is automatically turned over when printing on both sides.This equipment adopts automatic one-button start operation, thereby reducing labor intensity and saving labor, and improving production efficiency rate and printing quality, reduce the chance of double sheet downtime of printing and post-processing equipment.