Machine geometry modification

Machine geometry changes are improving PM runnability and speed. Already a small change can make a big difference on sheet run.

Unsupported section change:



Runnability problems at the section change can be a bottleneck also after the single felt has been equipped with web stabilizers. These problems are a result of moving surfaces, and mainly caused by pressure differences and axial air flows caused by pumping effect of dryer fabrics.

Supported section change:



Runnability problem in the group caps are solved by minimizing the open free draw. EVsf web stabilizer can be installed to the group cap.