When the high-speed cutter is working perfectly and operated correctly most cutting problems arise in connection with the knife.
The most common knives (HSS, carbide-tipped knives and finest grain), and the relevant grinding angles allow to deal with most of the available
Cutting results which are all the same beyond the desired tolerances require special knife angles and the matching knife qualities. A correctly adjusted clamping pressure and the proper cutting stick also have a highly positive influence on the cutting quality.
|Wrong knife angle, or knife quality does not fit the material to be cut
|Paper and other
materials to be cut
Continuous advancement of papers (paper coating) for improved printability.
Climate-related faults in finishing, such as stress within the material to be cut
Shortest job cycle times. Poorly dried run. This makes finishing much more difficult.
|Lay guide from printing
Lay guide of paper
Development of machine features for production management and support
|Instruction and training
of machine staff
Cutting training courses where operators learn to understand the practice
Proper installation of the machine (angled position, general machine geometry),
Cutting problems also arise frequently in connection with the materials to be cut some of the reasons being
that the paper contains a higher amount of fillers that make cutting more difficult.
Fig: Paper with a 42 % share of corundum (48.5 g/m2)
The next blog articles will concentrate on these cutting problems and how POLAR-Mohr can support you.
What issues are you experiencing?