Cutting variations in stripes (blank development)

Cutting variations in stripes (blank development)

Cause: 

• Wrong cutter setting
   
• Cutters are blunt
  • Grind your cutters
     
• Watch the sucker unit in front of the 1. cutting operation for too much downwards-bow of the sheet
  • Adjust bottom stop
     
  • Replace worn out sucker or parts
     
  • Mount the full range of downholder rings – see picture below!
     
  • They prevent the bowing movement of the sheets
     

Note:

The SQM measuring device can only detect “angular” cutting errors!