Hydraulic headboxes paper making

OVERMADE headbox family extends from the traditional air-padded, two-roll headbox for application on low speed fourdriniers to the hydraulic headbox Dynaflo for high speed formers and Crescent formers.

Hydraulic headboxes are conceived to guarantee:

  • Excellent stock dispersion through the exclusive Dynaflo device for turbulence generation
  • Best sheet formation
  • Negligible residual wake signature on the jet


  • Edge flow control system capable to modify locally the flow from 60%  to 160% of the nominal flow to optimize fiber orientation.
  • Stiff lamellas in the slice area
  • Multilayer layout
  • Dilution system for CD profiling control

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