The DSR(R) (Dynamic Shaperoll) is a thickness, flatness and profile ac
tuator constituted by a metallic sleeve rotating freely around a stati
onary beam, the sleeve being forced against the work roll by several p
ads independently controlled. It has been used with success in alumini
um rolling, Baosteel has decided to revamp its 5-stand tandem cold mil
l by putting a DSR on the last stand, It is the first application on s
teel, The first operating results are presented in this paper.