LONG PRODUCTS BULLETIN - SMS Meer GmbH

Commissioning
In the spring of 2008, Stefana
S.p.A., located in Ospitaletto, province of
Brescia, northern Italy, successfully commissioned
a completely new bar mill from SMS
Meer. Featuring a whole range of high-tech
equipment, the new mill can produce some
120 t / h of rebars or plain rounds, in case of
hot charging 140 t / h, conforming to a total
annual output of 700,000 t of sections. It
hence ranks among the most productive
rolling mills in southern Europe.
Stefana and SMS Meer had signed the contract for this project
named “Dream Steel” in 2005 to boost the production of
straight bars and spools. The original layout of the mill reserved
space for later installation of a billet welding machine to enable
endless rolling, as well as for mill extension to enable the production
of wire rod.
Walking-hearth furnace. SMS Meer’s package included a walking-hearth
furnace for 160 mm x 160 mm square billets up to 16
m long. A connection to the existing casting machine permits the
billets to be cold- or hot-charged. The furnace is equipped with all
required charging and discharging facilities.
Rolling mill with 16 roll stands and two finishing blocks. The
rolling mill comprises 16 housingless roll stands – six roughing
stands in horizontal and vertical arrangement plus ten intermediate/finishing
stands in horizontal, vertical and convertible design.
In addition, two finishing blocks, each with six rolling units, three
cooling sections for rebar quenching and tempering from rolling
heat, two cooling-bed shears and the patented HSD ® High-Speed
Delivery system belong to the mill’s equipment.
HSD ® system for maximum production rates. The HSD ® system
with four rotating channels permits high-speed two-slit rolling
to attain maximal production rates for the smallest bar sizes.
52 Newsletter No. 2/2008
Long-product mills
700,000 t of rebars and plain rounds per year
Stefana, Italy: Bar mill
successfully started up