According to Primetals Technologies, the project entailed replacement of the mill’s roughing stands with reversing Red Ring stands, which now allow the mill to roll 220 mm blooms. 

“This consequently enables to extend the range of rolled products, both in terms of size and grade. With a high rigidity, the Red Ring stands also improve the rolling quality, with consequent reduction of defects and increase of metallic yield,” Primetals Technologies said. 

The new reversing roughing group consists of one horizontal and one sliding vertical Red Ring stand.  

“Using blooms with 8 meter length and square size of 160 or 220 mm, a reversing sequence with up to 10 passes rolls a 104 x 112 mm intermediate product which feeds the existing finishing train. The processed grades consist of special steels for mechanical construction, tool, spring and bearing applications,” Primetals Technologies said. 

In addition to the equipment, Primetals Technologies provided the mechanization, guide systems, shears and the level 1 automation.  Technology facility in Harmony, Pa., USA, and are set for a July delivery.