Jul 23, 2010. /Lesprom Network/. This is the fourth time in a row that Varel Paper and Board Mill awards Voith Paper with a very sophisticated project. Besides increasing production capacity and extending the product range of PM 4, the focus is on efficient energy use and environment-friendly paper production, the company said in a statement received by Lesprom Network. Because of the additionally required raw materials, the rebuild comprises a major extension of the stock preparation system to three lines, for which Voith will deliver the crucial equipment. PM 4 will undergo complete modernization. For instance, the paper machine will be equipped with new approach flow systems, the headboxes will be renewed and both fourdrinier wires will be extended. A DuoD hybrid former will be installed for the back ply, while the top ply will be equipped with a DuoShake unit. Voith Paper Automation is responsible for the complete modernization of the paper machine control system. A particularly interesting aspect of this rebuild is the working width of the new components, which will be widened from 5.1 m to 5.3 m, thus making way for the future. Varel Paper Mill takes on the enormous job of engineering and planning and will be assisted by Voith Paper. Start-up of PM 4 is scheduled for mid-February 2011. Voith Paper is a division of the Voith Group and the leading partner to and pioneer in the paper industry. Through constant innovations, Voith Paper is optimizing the paper manufacturing process, focusing on developing resource-saving products to reduce the use of energy, water, and fibers. Varel Paper Mill currently produces corrugating medium and testliner in a basis weight range of 120 to 220 g/m2 on its PM 4. Before the turn of the year 2010-2011, an extensive rebuild and maintenance program will be launched. The capacity of PM 4 will be increased to 300,000 t/a and in future, about 50 % of its production will be white liner grades.