Customer case:

Stora Enso Skoghall BM8 reduces grade change times by 25%

May 11, 2016

Replacing old quality control system (QCS) on Stora Enso Skoghall board machine KM 8 with a modern Valmet IQ system with three scanners, has cut the time of grade changes by 25%. KM 8 is the biggest liquid packaging board machine in the world, with a production capacity of 465,000 tonnes of five-ply board coated three times on the top side with a starch application on the wire side.

All three start-ups have been very successful and managed to achieve approved quality after just ninety minutes. We have now been running KM 8 for more than eighteen months with the complete Valmet QCS system. Almost all our goals have been achieved, including shortening run-in periods and quality change times by 25%.”
Leif Karlsson, project manager


Location Skoghall, Sweden
Challenge Existing quality control system at end of life. Project was carried out in three phases.

Valmet IQ quality control system (QCS) and profilers

5 Valmet Wet End Measurement (Valmet RM3) analyzers

Valmet Pulp Analyzer for freeness control


Run-in periods and grade change times reduced by 25%

Good profile control

Chemical use optimized with Valmet RM3 analyzers

Maintenance need considerably reduced

Keywords Automation, Improvements, Europe