Corrugated Paper Processing Blade

1.Slotting blade (fan blade): used for slotting cartons, paper towels and other materials, which can be divided into two types: toothed and toothless, and can cut one or more grooves on corrugated cardboard to facilitate accurate bending and molding of cardboard. After grooving, the indentation is clear, which ensures the stability of the internal size of the carton and adapts to the carton forming process. Applicable material: 9CrSi‌: it is suitable for fan-shaped knife (grooving knife), which has both wear resistance and toughness and high cost performance. Cr12mov (D2/SKD11): Hardness HRC58-60, suitable for high-strength grooving, with wear-resistant life of over 8,000 hours.

2.Cutting blade, longitudinal cutting and indentation. The thin knife paper separator adopts a precision blade with a thickness of 1mm, and the cutting speed reaches 80 m/min, and the cutting gap is ≤0.1mm, so as to ensure that the edge of corrugated board is burr-free. The line pressing process is completed at the same time of cutting, and the line pressing accuracy is ±0.05mm, which meets the needs of carton folding and positioning.

3.Die-cutting blade: CNC die-cutting equipment is driven by servo motor, with positioning accuracy of ±0.05mm, which can handle 1800mm wide cardboard and is suitable for large-scale production line.

Laser die-cutting technology uses 300℃ high-temperature beam to vaporize fiber, realizing non-contact cutting, and the burr rate is ≤0.02mm, which is suitable for the packaging of precision electronic products.

 

Blade Type	Adaptive scene	Core advantage	Application
Circular Blade	High-speed slitting and slitting of metal foil composite paper	Smooth cutting edge, supporting continuous operation.	Hard alloy material is preferred.
Sector Knife (Grooving Knife)	Slotting carton and trimming corrugated paper.	Strong impact resistance, suitable for high gram weight materials.	9CrSi/Cr12MoV material
Single-Sided/Double-Sided Square Knife	Thin corrugated paper slitting (< 70μm)	Double-sided knife has good flexibility and reduces burrs.	Single-sided knife for cutting thick film
Dish Knife	Precision cutting and trimming	Lightweight design, adapting to special materials	Customized production requirements

Material Classification	Advantage	Application
Cemented Carbide (Tungsten Carbide)	Hardness up to HRA89-93, excellent wear resistance, suitable for high-speed cutting (≥100 m/min), suitable for processing high-gram corrugated board and film-covering materials.	Corrugated paper is longitudinally cut into strips and metal foil composite paper is cut, and the cutting edge is smooth and burr-free.
High Speed Steel (HSS)	Good toughness and high cost performance, suitable for cutting ordinary corrugated paper at medium and low speed.	Regular cutting demand of office paper cutter and small and medium-sized printing enterprises
Cr12MoV（D2/SKD11）	High wear resistance and impact resistance, suitable for large round knives and grooving knives.	Grooving corrugated paper and trimming thick cardboard.
9CrSi	Balanced comprehensive performance, suitable for fan-shaped knives (grooving knives) and high-precision cutting.	Carton slotting and wrapping paper cutting.

 

Batch cutting of special-shaped cartons and gift boxes, with a daily output of over 50,000 pieces.

Composite film (paper-plastic material) is cut, and the separation purity of paper layer and plastic layer is ≥95%.

 

1.High-speed cutting: carbide circular blade (such as tungsten steel single blade) or coated blade to ensure wear resistance;

2.medium and low speed cutting: high speed steel or Cr12MoV blade, reducing cost.

3.Grooving/trimming: Cr12mov or 9CrSi sector knife with strong impact resistance;

4.tissue paper cutting: double-sided square blade, reducing material tensile deformation.

5.High humidity scene: choose chrome-plated steel slitting roller+antirust coating component;

6.high cleaning requirements: stainless steel blades or aluminum alloy components to avoid pollution.

 

Regular sharpening: carbon steel blades need to be polished every 8-12 hours, and cemented carbide blades can be coated to extend their life;

Lubrication management: use paraffin or special lubricant to reduce friction and improve cutting accuracy;

Check the clearance: the clearance between the blade and the gasket is controlled at 0.05-0.1mm to avoid material tearing.

Through reasonable selection and maintenance, the corrugated paper processing blade can significantly improve the cutting efficiency and the quality of finished products, and adapt to the diversified needs from packaging cartons to special materials.