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Pulp Paper & Logistics


Containerboard conversion for Austria’s Laakirchen Papier


aakirchen Papier in Austria is having modifications made to its PM10 publication paper

machine to produce lightweight containerboard by Valmet with an expected start up in for the autumn of 2017. The 7.5m-wide (reel) PM 10 will

produce containerboard products with a basis weight range of 70 g/sqm upwards. After the full extension, the annual production of PM10 will reach 450,000 tonnes. Laakirchen is also having a two-drum wider installed. “With this investment, the

product range of Laakirchen Papier will be widened into a growing market sector. Valmet’s technology and vast reference list of high speed containerboard winders convinced us,” said project manager Johann Stadlmayr at Laakirchen Papier.

The work will include a press section upgrade, relocation and modification of the existing reel and one OptiWin Drum two-drum winder. The winder is equipped with Dual Unwind, which is Valmet’s new two-unwind system. This new feature makes it possible

to change the parent roll in only one minute. “Grade conversion projects

often include a production change from two winders to one high capacity winder to increase mill’s automation level. This also the case with the Laakirchen PM10. A

Valmet high capacity winder with two-unwind will do the demanding job,” says Kenneth Åkerlund, product manager for winders and reels at Valmet. Laakirchen Papier AG is part of Heinzel Group, within the Heinzel Holding umbrella.

German mill to reconstruct newsprint line to white top testliner

German paper maker LEIPA Georg Leinfelder is having its PM11 newsprint machine reconstructed by Voith to be its future PM5 as one of the most modern and largest production lines for white top testliner. At the same time the LEIPA mill in Schwedt is having new OCC stock preparation installed and an extension to its DIP facility. It is part of a €1 billion

investment by LEIPA in machines, infrastructure, energy solutions and employees, establishing its position as a quality

manufacturer for coated and uncoated white top testliner, becoming a one-stop-shop for first-rate quality white coated corrugated base paper with a total annual capacity of 700,000 metric tons. While the 9.2m-wide PM11 is currently producing around 280,000 metric tons of newsprint a year, the capacity of the future PM5 will have an annual capacity of 450,000 metric tons, and rank as the top-performing paper machine of its kind worldwide. The papers produced will feature

the highest strength values and best surface characteristics. Voith will also supply a new OCC stock preparation line with drum pulping for the back side of the paper and an extension of the existing deinking system for the paper surface. The paper machine rebuild will include a two-layer wire section including hybrid former, a DuoCentri NipcoFlex shoe press with SolarPress roll cover, a SpeedSizer AT, film applicator unit, the pre- and after-dryer section, Sirius reel and the rebuild of the two

DuoRoller units. As part of the Process Line

Package, Voith will design and deliver the hood and air system as well as the automation (machine, process and quality control systems). Along with assembly, Voith will also take on engineering and procurement engineering tasks, as well as training and commissioning. Additionally, a supply agreement on clothing for the paper machine to improve the overall performance has been concluded.

November/December 2016

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