Introduction to Circular Cutting Knives

 
Working Principle
 

1. Tangential Cutting: The material is cut in the tangential direction of the upper and lower disc knives. This cutting method is convenient for knife alignment. It only requires directly adjusting the positions of the upper and lower knives according to the cutting width requirements. However, its disadvantage is that the material is likely to drift at the cutting position, resulting in low cutting accuracy. Nowadays, this method is generally less used.
2. Non-tangential Cutting: There is a certain included angle between the material and the lower disc knife, and the material is cut when the lower disc knife falls. This method can prevent the material from drifting, and it has high cutting accuracy. But it is not convenient to adjust the knife. When installing the lower disc knife, it is usually necessary to remove the entire shaft. Non-tangential cutting is suitable for cutting relatively thick composite films and paper materials.

 
Structural Design
 

1. Blade Shape: The overall shape is circular. The cutting edge can be in a smooth linear shape, or in special shapes such as serrated or wavy, to meet different cutting requirements. The serrated cutting edge can increase the friction and shearing force during cutting, and is suitable for harder or thicker materials. The wavy cutting edge can be used to create special cutting effects, such as decorative cutting.
2. Size Specification: Circular cutting knives have a variety of size specifications, and the diameter range usually varies from a few centimeters to several hundred centimeters. Small-sized circular cutting knives are often used in small processing equipment or handicraft production, such as jewelry processing and model making. Large-sized ones are used in large industrial cutting machines for cutting materials such as paper, films, and metal sheets.

 
Material Characteristics
 

1. High-speed Steel: It has high hardness, strength and toughness, can withstand high-speed rotation and large cutting forces, and also has good wear resistance and thermal stability. It is suitable for cutting various materials such as paper, films, and leather.
2. Tungsten Steel (Cemented Carbide): It has extremely high hardness and strong wear resistance, as well as good corrosion resistance and oxidation resistance. Tungsten steel circular cutting knives can maintain a sharp cutting edge and have a long service life. They are often used for cutting high-hardness materials, such as metal foils, fiber materials, and hard plastics.
3. Stainless Steel: It has good corrosion resistance and rust resistance, as well as relatively high strength and hardness. Stainless steel circular cutting knives are suitable for industries with high requirements for hygiene and corrosion resistance, such as food processing, pharmaceutical packaging, and electronic materials.

 
Application Fields
 

1. Packaging and Printing Industry: It is used for cutting packaging materials such as paper, films, and aluminum foils, and dividing large-format materials into small pieces of various specifications to meet the needs of different packaging products, such as the production of cartons, cartons, labels, and packaging bags.
2. Textile and Garment Industry: It can be used for cutting and trimming fabrics, non-woven fabrics, chemical fiber materials, etc., and dividing rolled textile materials into strips of a certain width, which are used in clothing production, home textile production, curtain processing, etc. It can also be used for cutting leather to make leather products such as leather shoes, leather bags, and leather clothes.
3. Electronics and Electrical Industry: In the processing of electronic materials, circular cutting knives are used for cutting materials such as copper foils, aluminum foils, insulating films, and electronic tapes to provide precisely sized material components for the production and assembly of electronic components.

 
Our professional team has been deeply engaged in the research, development and manufacturing of cutting knives for many years, and has rich industry experience and advanced technology. We can provide personalized solutions for circular cutting knives according to your usage scenarios and the characteristics of processing materials. Whether it is product selection, technical parameter optimization, or after-sales maintenance support, we will wholeheartedly serve you.
 
If you are interested in circular cutting knife products, or have customization requirements, technical consultation and other questions, you are welcome to contact us at any time!