Due to the difference in dimensions, especially the width, between an industrial mill and the pilot mill
the rotation from the nozzles had to be changed. In an industrial mill, the nozzles have their spraying
pattern under a certain angle in order to increase the homogeneity when there is an overlapping from
different nozzles. In the laboratory however, the width from the spraying pattern, at the distance where
the roll surface is situated, covers the entire width of the pilot work rolls. Therefore the nozzles could
be positioned horizontally without the risk to obtain an inhomogeneous cooling.