The forming concept of vat formers has been known for over one hundred
years. The sheet forming process of vat machines, especially the pick
up of the fibers greatly depends on the furnish parameters. The sheet
quality can only be influenced in a small range. The limited adjustab
ility results in uneven profiles in the cross direction as well as in
the machine direction. Considering ail the disadvantages which make cu
stomers dissatisfied with the conventional design, Voith Sulzer has fu
rther developed the shortformer into the FloatLip former: Presently th
e FloatLip former equipped with the centrifugal distributor and proven
ModulaleJet dilution water system for basis weight control produces o
ptimum sheet quality and very good 2 Sigma values.