Cross knives
Cross knives are used for the crosswise cutting of material in the manufacture of sheet paper, cardboard, cellulose and other products. These knives can have a soldered cutting edge from HSS.
The use of cross knives
Cross knives are used for the crosswise cutting of material, thus mostly interrupting the flow of material. They can be both toothed and non-toothed. They have a gradual cut. We supply knives for the crosswise cutting of paper, textiles, sheet metal, plastics, monolithic and bimetallic knives. The knives should have a sufficiently rigid construction to ensure a clean cut.
Cutting principle
Cross knives can cut on the principle of static knives or moving against the knives, or both knives can rotate against each other clamped or on cylinders, or move against each other. However, a knife for crosswise cutting may also be circular. Mounted on guiding and divides the material through the individual crossovers. It can cut against a stick, or it can be driven and cut into a gap. We produce knives up to a length of 4,000 mm.
Adjustment of cross knives
Adjusting cross knives is a professional activity and requires experience. Both knives are always ground.
Table of tolerances
| Terminology | Symbol | Accuracy |
|---|---|---|
| Parallelism |  |
up to 0.005 mm |
| Surface plane |  |
0,1/1000 mm |
| Straightness |  |
up to 0.005 mm |
| Rectangularity |  |
up to 0.005 mm |
| Holes through the quenching | up to 1000 mm length 1000-2000 mm length 2000-3000 mm length over 3000 mm length |
0,5 mm 1,0 mm 1,5 mm 2,0 mm |