With the development of economy, the slitting machine has also been greatly developed. Various slitting machines have been developed. For example, there are paper slitting machines, automatic slitting machines, and high-speed slitting machines. The emergence of these slitters is a boon.
        The slitting machine is a pre-press and post-press equipment that cuts a large roll of paper, film, non-woven fabric, aluminum foil, mica tape and other thin materials into small rolls of different widths. It is commonly used in papermaking machinery and printing and packaging machinery.

        In the past, the speed of the magnetic powder clutch of the slitting machine could not be high, because it was easy to cause high-speed friction of the magnetic powder during operation, resulting in high temperatures and shortened its life. Seriously affected the production efficiency. It is now controlled by a dual-frequency motor, so that when the diameter of the rewinding material becomes larger, the frequency-friction motor is controlled to make the magnetic powder friction at a certain value. Without high temperature.