Perforation unit for doing slits in machine direction. It is a mechanical perforation unit where the material is only pushed aside. The back-up pressure roller can be in natural fibre (brush) or rubber according to the material to be processed. It could be installed on extruder, slitters, bag making machine, printing machines and so on. Our Mod. SM-CTM can be equipped with toothed circular blades or pins mounted on a shaft depending on customers’ requirements and materials. The max material width is 3000mm.