Metso-supplied spray sizing unit successfully started up at Papierfabrik Schoellershammer in Germany

Published 8/31/2012, 9:00 AM EET

Metso and Papierfabrik Schoellershammer have together succesfully started up Europe’s first spray sizing unit for the mill’s swing testliner and recycled fluting machine, PM 5, located in Düren, Germany. The new two-sided spraying unit was installed in an existing pond size press, originally delivered by Metso in 2005. After the start-up on May 12, 2012, the production line has produced sellable paper from day one and has since been able to successfully produce its full product range with the new equipment.

“This is a big step forward in terms of runnability. Thanks to higher solids we can now also use increased starch amounts without compromising production capacity. We foresee considerable savings in steam consumption as well,” says Konrad Franken, Production Manager at Papierfabrik Schoellershammer.

The 5-m-wide PM 5 produces testliner and fluting grades in the basis weight range of 90-170 g/m2 at the maximum production speed of 1,100 m/min.

Metso has been developing the spray sizing technology for several years, and the work has its foundations in Metso’s long tradition with film sizing, water sprays and earlier spray coating developments. The technology is protected by several international patents and applications. In 2008 Metso started up the first one-sided prototype unit of spray sizing for fluting in Korea. Since then the company has delivered five spray sizing projects in total in Asia, three of them with two-sided spray. “We see that spray sizing is clearly the future method for surface sizing of containerboards and it has potential benefits in other applications as well,” says Topi Tynkkynen, RTD Project Manager at Metso. Spray sizing has a major role in Metso’s new OptiSizer family, to be launched to the market in 2012.

Papierfabrik Schoellershammer, located in Düren, Germany, produces testliner and fluting board grades from 100 % recycled paper 220,000 tonnes a year and high-quality specialty papers 6,000 tonnes a year. The company has a good market position in their main market area in Europe. The family-owned company employs a total of 230 persons.

Metso’s pulp, paper and power professionals specialize in processes, machinery, equipment, services, paper machine clothing and filter fabrics. Our offering and experience cover the entire process life cycle including new production lines, rebuilds and services.,,

Metso is a global supplier of technology and services to customers in the process industries, including mining, construction, pulp and paper, power, and oil and gas. Our 30,000 professionals based in over 50 countries deliver sustainability and profitability to customers worldwide. Expect results. ,

For more information, please contact:

Petri Ristola, Director, Marketing and New Products Sales, Paper Mills, Metso Tel. +358 40 537 3798, petri.ristola(at)