Overmade has completed the delivery of a Dynaflow FL Hydraulic headbox for Pratt Paper (USA), as the company said in the press release received by Lesprom Network.
With a pond width of 6200 mm and an operation output of approx. 750 tpd., the headbox is intended for the bottom layer of a machine producing up to 1200 tpd of high quality testliner and fluting at a speed of 1100 mpm.
The headbox design has been selected for the excellent distribution of the fiber it is able to grant, contributing to achieve the highest market standards of CD basis weight profile and paper properties. The target of the modification is to improve the efficiency of the forming section when basis weights ranging from 100 gsm to 273 gsm are produced using up to 80% of mixed waste paper and only 20% of OCC.
The headbox features an additional edge flow control system, capable of locally adjusting the flow from 60% to 160% of its nominal value, designed to optimize the fiber orientation all across the paper width.
The headbox is supplied with stiff lamellas in the slice area to maintain a high level of micro-turbulence up to the jet exit, thus improving paper formation at high speeds.
Overmade is a global supplier of machinery for the tissue and paper industry known worldwide with the name of OVER Meccanica until 2015.
