Illustration printing
Slitter geometry
Problem case
Depending on the application the edge geometry of the upper knife has an influence on the durability, cutting quality, safety and the risk of breakings.
Problem 1:
Breaks on the knife edge, especially with carbide metal knives
Problem 2:
Bad cutting quality
Problem 3:
Risk of injury on slitters
Solution
Solution to problem 1:
- If there is a risk of breaking a secondary bevel or chamferless circular knife will help
- Use powder metallurgical steel instead of carbide steel
- Check the stability of the knife holder
Solution to problem 2:
- Knives are dull – change knives
- Material of used knives
- Cutting point is incorrect
- Overlap is too high
- Overspeed is too low
- No or low cant angle
Solution to problem 3:
- Chamferless slitters offering the advantage of a much reduced injury risk and doubled durability through both sided usage
Recommended Solutions to solving Slitter geometry
More to Troubleshoot?
For over 100 years, TKM has been solving common printing problems in the flexographic and gravure industries. TKM can analyze your issues, provide a tailored solution with testing and partner with you every step of the through our robust training and support services.