Valmet Aktiebolag

Martin Raedman

Hans Ivarsson

Magnus Hoegman

Stefan Moden

Johnny Anerud

Andreas Hjaertqvist

Sune Wendelsson

Anna Danielsson

Jonas Cederloef

Stefan Thyberg

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

Kil, Sweden

Martin Raedman