Tin plates are out of square
Remedy:
- Check the transport rings on the knives: If the rubber is too small (due to heavy wear) conical or much bigger (if no original spares are in use) cutting tolerances can be negatively affected!
- Make sure that enough support rings are mounted between the knives. They keep the sheet leveled. The thinner the sheets, the more important it is to keep them flat.
- Make sure that all knives are well grinded.
NOTE:
- You should regrind your cutters after approx. 3 mio. sheets.
See also related article