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Web inspection for quality optimization in pulp and paper

For papermakers looking to optimize product quality, ABB’s Web Imaging System (WIS) and Web Monitoring System (WMS) provide the most advanced sheet detection capability on the market.  


Mill challenges that web inspection can help address: 
  • How to calculate roll-specific quality values to automatically classify rolls before they reach the winder?
  • How to trace wrinkles, dirt or defects back to their root cause so remedial action can be taken?
  • How to avoid losing value and decreasing profit potential due to quality issues and reprocessing?
  • How to reduce or eliminate downtime caused by sheet breaks and defects?
Accurate web defect detection, imaging, and identification all play crucial roles in automation, quality control, root cause tracing and process improvement. With 40+ years of superior web inspection experience, you can rest assured that ABB’s solutions offer you state-of-the-art tools for identification of web defects, enabling quick corrective actions.

Monitor

  • All relevant sheet break data available
  • Event capturing / synchronized video interlinked with WIS

Detect

  • Full sheet inspection, and advanced classification
  • Integration with DCS/QCS

Analyze

  • High speed analysis, defect maps, image gallery
  • Trends, causes at a glance

Automate

  • Precisely slow/stop winder at selected defects
  • Minimize manual errors

Examples of defect types

Holes

Wrinkles

Light spots

Dark spots / Dirt



Flexible solution

Flexible solution with multiple configurations

“The system has not only improved quality and the work environment for operators, our sales organization also greatly benefits from it. We were previously often forced to take back the entire order if a customer discovered defects in some of the delivered rolls. Today we can trace exactly which rolls are concerned through our database where all of the images are stored for at least two years. The difference in complaint-related costs is enormous."

~Leif Karlsson, Project Manager at Stora Enso



Estimate your savings

Use this simple formula to help justify a WMS: Sheet break time X profit margin / hours = potential savings

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