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Runnability systems give mills an edge on quality and throughput Even the most modern computerized process control systems display one "long-term" machine and quality variations: those that occur every 30 seconds or more. For high speed machines, this translates into about a third of a mile of paper.
But what about quality variations within that third of a mile of paper? A growing number of mills want to analyze and attack these "short-term" variations as well. These variations--caused by critical rotating elements on the paper machine such as fan pumps, screens, wires, felts and rolls--limit both machine runnability and quality at the reel.
Computerized paper machine runnability systems can help. They are rapidly finding a place in the control rooms of mills operating high-speed paper machines. Sensodec, a subsidiary of the …