SPEED

In this machine sketch are 10 driven rolls; all controlled by a Drive Control System (DCS). If just one of those 10 rolls is not correctly entered into the DCS, many problems are likely to appear:

  • damaged sheet surface, resulting in poor printability
  • felt hairs in the sheet, which is bad news for coaters and printers
  • many wet-end breaks, from a few per day up to several per hour
  • increased felt wear with all the related costs
  • and when using seamed felts: increased flap wear and seam marking

 

The press section is very sensitive for the correct speed settings. The sheet properties and dimensions change over a very short period of time, but the web is still weak. Just a little too much draw somewhere can lead to numerous breaks.

 

Feltest Products for accurate speed measurements

Feltest RealSpeed – an accurate tachometer, specially designed for paper machines.

LINKEDIN GROUP FOR PMC PROS

Join the Paper Machine Clothing Professionals group on LinkedIn. Anyone dealing with Paper Machine Clothing is invited to join this group. PMC Sales & Service Engineers, paper mill Production Managers, anyone with questions or knowledge on wires, fabrics, felts and canvas is welcome to join!

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REFERENCES

albany
andritz
asten johnson
cmpc
heimbach
international paper
kimberley clark
sca
smurfit kappa
storaenso
valmet
voith
xerium