Andritz has completed the conversion of a graphic paper machine at Heinzel Group's Steyrermühl mill in Austria.

After a successful start-up, the machine is now producing kraft papers for packaging which are marketed under Heinzel Group's well-established Starkraft brand.

The rebuilt machine is running smoothly with a capacity of 150,000 tons of brown and white kraft paper per year and a paper witdth of 6,300 mm at the reel. Starkraft offers a full range of 40 to 100 gsm kraft papers. This strategic investment allows Heinzel's Starkraft division to produce a total of up to 350,000 tons of kraft paper per year.

Andritz introduced a unique headbox and gapformer concept combined with a shoe press that achieves significant energy savings. Andritz's softnip calender technology results in premium paper surface qualities. Moreover, Andritz provided a new VIB SteamTech profiling system and an upgrade of the existing steam and condensate system.

The scope of supply also included upgrades of the stock preparation, approach flow, and broke handling systems, as well as extensive upgrades of the automation systems, detail engineering packages, and mechanical erection.

Starkraft, a business unit of Heinzel Pöls, is part of the Heinzel Group, a family-owned pulp and paper group based in Austria.

Andritz Pulp & Paper provides sustainable technology, automation, and service solutions for the production of all types of pulp, paper, board and tissue.