Disadvantages: The speed is not high, and the high-speed friction of the magnetic powder is easy to occur at high speed, which causes high temperature, which causes the magnetic powder clutch to heat up and shorten its life. The cutter is used to cut a certain width of the web longitudinally and cut into several devices for narrower slits. After being installed in a unit such as a calender or an extruder or a glue applicator, the continuous cutting can be completed, often with a winding device. The knife can be used with a flat knife and a round knife.
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