The slitting knife is divided into an upper knife and a lower knife, which are installed on the knife shaft of the slitting machine. Using the rolling shear principle, various capacitor papers, aluminum foils, metallized films, cinematographic films, computer tapes, and magnetic tapes with a thickness of 0.01 to 0.1 mm are cut. High accuracy and stability, fully electronic knife stacking and lateral force control, reducing operating costs and downtime, with a simple and intuitive graphical user.