This seems to be working :) I am not sure why this works and my top post dont. But i copied the code which is generated by designer and now it works.
XRLabel druckinfo = new XRLabel();
druckinfo.Angle = 90F;
druckinfo.Padding = new PaddingInfo(2, 2, 0, 0, 96F);
druckinfo.SizeF = new SizeF(29.16666F, 500F);
druckinfo.Font = new Font("Arial",8f);
druckinfo.Text = text;
_Band.Controls.Add(druckinfo);
druckinfo.LocationF = new PointF(0F, 500F);