3. Used thin blade slitting paperboard to avoid burr and be flattened. Finished cardboard is flat and smooth and free from burrs and press flatten, good straightness, improve quality and appearance of cardboard.
4. Equipped pneumatic sharpening device (Timing, Spacing), can cutting and grinding at the same time. Keep the sharpness of blade and improve working efficiency.
5. Electric up and down, electrical adjustment blade, electrical adjustment creasing. the whole machine adopt electric movement horizontal, assort to the cardboard excursion in effect.