For its continuous slab caster in Montpelier, SSAB Iowa, USA ordered
twelve STEC roll lines from SMS Siemag, Germany, (www.sms-siemag.com)
for use in the casting bow. The STEC-Roll? optimizes the casting process and sets new standards for cost-efficient maintenance.
The main reason for SSAB to choose the STEC-Roll? was the
fact that the roll inside cooling with revolver bores enables a
versatile secondary cooling concept for the casting of elaborate steel
In the existing continuous slab caster, the STEC-Roll? will replace two driven and ten non-driven rolls in one segment. Here, the STEC-Roll? will replace rolls with maintenance-prone split bearings. Nevertheless, adaptation of the segment frame is not required.
In addition, the STEC-Roll? receives customized deposit
welding in the service workshop at SMS Millcraft LLC, USA, thus
extending the service lives of the STEC rolls even more.
The continuous caster was supplied by SMS Siemag in 1996. In several
plants in the USA, SSAB produces heavy steel plates for advanced end
products, such as offshore installations.
The STEC-Roll? optimally supports the strand thanks to its minimal bearing window width.
All roll bodies are mechanically interlinked, also for narrow slab
formats. SMS Siemag has developed various cooling concepts for the
The STEC-Roll? is easy to maintain and enables the
dismantling of a roll line in less than 60 minutes and installation in
less than two hours. Special tools such as used in other systems are not
required for the STEC-Roll?. In combination with the ability
of the rolls to be re-used several times, this helps to significantly
reduce the maintenance costs.
Source: SMS release