Slotting knives can be classified into various types based on their usage, structure, and material. Here are some common types of slotting knives and their characteristics:

Ordinary slotting knife: The hardness is usually 55-58 degrees, with a chrome plated surface, suitable for various printing equipment and materials.

High speed slotting knife: With a hardness of up to 63-65 degrees and a special coating treatment on the surface, it is suitable for high-speed cutting on high-speed printing machines and has the advantages of straight cutting, fast speed, and long service life.

Single blade slotting knife: With a single blade structure, it cuts straight and has high force, suitable for cutting materials such as cardboard boxes and hard cardboard.

Double edged slotting knife: With a double-edged structure, it has high cutting force and fast speed, and is suitable for cutting various printing equipment.

Telescopic slotting knife: It can adjust the blade length and is commonly used for slotting and cutting roll paper.

In addition, according to the different tooth types, slotting knives can also be divided into standard teeth, expanded teeth, opposite teeth, V-shaped, U-shaped, Z-shaped, etc.