Virtuo® OptiScale

Gallery Virtuo® OptiScale 1
Gallery Virtuo® OptiScale 1
March 2021
By Fives
Headquarters 75009 Paris, France

Virtuo® OptiScale - A digital tool that scans and analyses steel products passing through the reheating furnace to control the oxide scale growth and reduce scale loss

Oxide scale is both a product quality, a productivity and an environmental issue. Steelmakers spend time and money trying to achieve their desired surface quality and remove oxide scale from the furnace. Virtuo® OptiScale is an advanced new digital tool designed to achieve oxide scale efficiently and intelligently. Using lasers and infrared cameras, it scans the steel slab as it passes through the furnace and automatically adjusts furnace parameters to reduce oxide scale and prevent non-adherent oxide scaling. Even better, the software uses machine learning to continually evolve its understanding so that it can predict scale loss for all products being heated in the furnace. The modelling is automatically updated with the latest information from the furnace. With this technology, scale loss can be reduced by up to 30% and the related quality, cost, maintenance and environmental concerns are minimized.

Key features

  • 5% to 30% reduction on the scale loss for slab reheating furnaces
  • Optimize the steel product surface quality
  • 6065 tons of yearly savings on the steel production for a 380 t/h reheating furnace
  • 2,1 GWh of annual savings for a 380 t/h reheating furnace


  • More than 2 M€ of annual savings for a 380 t/h flat product reheating furnace
  • Payback time under 1 year

Company Profile

Maturity Stage

  • Medium and large scale commercialization
  • Small scale commercialization
  • Initial market commercialization
  • Prototype testing in the real world
  • Prototype testing 1:1 in the lab

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