A circular slitter knife is a type of cutting tool used in slitting machines to cut various materials such as paper, film, foil, and nonwovens into narrow, smaller rolls. Circular slitter knives are designed to be circular in shape, with a sharp cutting edge on the outer circumference of the blade. They come in different sizes, configurations, and materials, depending on the application and material being cut.
Circular slitter knives & rotary slitter blades are commonly made from high-speed steel (HSS), tungsten carbide, or ceramic materials, which offer high durability and resistance to wear and tear. They are manufactured with different tooth configurations such as straight, wavy, or scalloped edges to achieve specific cutting effects or to accommodate different materials.