Valmet Aktiebolag

Stefan Thyberg

Hans Ivarsson

Magnus Hoegman

Stefan Moden

Johnny Anerud

Andreas Hjaertqvist

Martin Raedman

Anna Danielsson

Jonas Cederloef

Sune Wendelsson

Martin RÅDMAN

Magnus HÖGMAN

Andreas HJÄRTQVIST

Jonas CEDERLÖF

Eric Warmland

Peter Nygren

Johnny ÅNerud

The invention relates to a steel-made Yankee cylinder () that comprises a cylindrical shell () having two axial ends (). An end wall () is connected to each axial end () by a circumferential weld bead (). The cylindrical shell has an inner surface () in which circumferential grooves () are formed. From the outermost circumferential groove () at each axial end () to the circumferential weld bead () at that axial end () the wall thickness (T) of the cylindrical shell is either constant or decreasing and the depth (d) of the circumferential grooves increases axially from the outermost circumferential groove ().

Steel-made yankee cylinder

Growing community of inventors

Karlstad, Sweden

Stefan Thyberg