The complex rebuild with demanding technological requirements, not only for the equipment but also for the process and product quality, was prepared in close cooperation between UPM (Finland) and Andritz; Apart from the rebuild of PM2, the Andritz scope of supply also includes modification of the stock preparation system, approach flow and broke system.

The modification of the stock preparation system includes ModuScreen CP police screens for the short and long fiber lines and two refiners TwinFlo TF-S34 for the long fiber line. For the approach flow system, Andritz will deliver a new Short Flow deaeration silo including vacuum system, new headbox screens ModuScreen HBE for the HC and LC lines, and fan pumps. In addition to these items, a two-stage broke screening system with ModuScreen F, a thickening drum PRS2060, and a deflaker DFL3 are included in the scope of supply. For broke conversion, Andritz will deliver an HC pulper FibreSoAll sections of the paper machine will be modified. One of the key components is the Amdritx VVPrimeFlow SW dilution water headbox. The PrimeForm and PrimeForm HB hybrid formers include new dewatering elements that are considered to provide maximum flexibility for dewatering and also improve sheet formation.

The key component in the press section is a new PrimePress X shoe press with a PrimeSteam VIB steam blow-box for profiling in order to achieve the required dryness. The first dryer group will be rebuilt as a single tier with new PrimeRun Jet and PrimeRun D stabilizer boxes. Ropeless tail threading will be added to the pre-dryer and after-dyer sections.

Between the dryer sections, a new PrimeFilm film press will be installed including contactless, high-intensity drying. Furthermore, the after-dryer section will be equipped with a new PM hood and a new dry broke pulper. At the end of PM2, a complete new re-moisturizing system – PrimeSpray VIB – for both paper sides is included in the scope of supply.