Solid carbide circular knives / Tungsten carbide razor slit knives, blades
Specialty made for slitting corrugated boards / Card boards
These kinds of tungsten carbide razor blades are specialty made for slitting corrugated boards, cardboards, which are made of sub-micron carbide grade.


They are precision made to a high standard, with specially ground finish and sharp cutting egde. They can perform high speed cutting, with a high machining efficiency, accurate slitting and good surface finish. Their life time is about 6~8 million meters.
Our carbide circular knives can be manufactured with or without pinholes or keyways, according to customer's requirements.
Features:
- Maximum total tool life time, normally 6 to 8 million meters;
- Much safe and aviod of broken in operation
- Maximum cutting and production speeds
- Maximum precision and finish of cut
- Maximum resistance to abrasion
- Minimum cost per unit of production obtained from knives
- Edge-guard by strip, to protect cutting edge and avoid injuries.
Photos for reference
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Click to view more photos of our Tungsten Carbide Razor Slit Knives, Carbide Slitters
Product Specification/Model
Following are some standard sizes that we usually make, other sizes are available upon your requirements.
| O.D (mm) | H.D (mm) | Thickness (mm) | Pinholes (mm) | |
| 1# | Φ220 | Φ115 | 1.0 | 3×Φ9.0 |
| 2# | Φ230 | Φ110 | 1.1 | 6×Φ9.0 |
| 3# | Φ240 | Φ32 | 1.2 | 2×Φ8.5 |
| 4# | Φ240 | Φ115 | 1.0 | 3×Φ9.0 |
| 5# | Φ250 | Φ150 | 0.8 | no holes |
| 6# | Φ260 | Φ168.20 | 1.2 | 8×Φ10.5 |
| 7# | Φ260 | Φ140 | 1.0 | 6×Φ9.5 |
| 8# | Φ280 | Φ202 | 1.4 | 6×Φ7.5 |
| 9# | Φ291 | Φ203 | 1.0 | 6×Φ8.5 |
| 10# | Φ300 | Φ112 | 1.2 | 6×Φ11.0 |


