Andritz delivers world’s largest welded steel yankee

Photo: Andritz
Photo: Andritz

Andritz has set an milestone with the supply of equipment for Europe’s largest kraft paper machine to Zellstoff Pöls AG, Austria: The steel yankee with a diameter of 6.7 meters and a weight of 150 t has been delivered successfully to the Pöls mill. As the largest high-precision steel yankee in the world, it had to be manufactured in two parts for transport purposes. The yankee is made entirely of steel, providing higher performance and enhanced safety compared to a cast iron yankee. It is currently being assembled and welded, and will be lifted into the machine room in June 2013 with a 600 t crane.

The new 5.4 m wide machine, with an annual capacity of 80,000 tons and design speed of up to 1,000 meter per minute, will produce very high-strength paper grades used for shopping bags, high-grade medical packaging, and food packaging. The scope of supply includes the stock preparation plant, an approach flow system, the complete Fourdrinier paper machine, a calender, and the automation systems. Start-up is scheduled for the end of 2013.

With this investment, Zellstoff Pöls – the largest manufacturer of high-quality Elemental Chlorine-Free (ECF) sulfate pulp from bleached softwood in Central and Southeast Europe – is extending its existing paper production capacity. The total investment volume amounts to 115 million euros.