Stein Digit@l Furnace, a walking beam furnace

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Stein Digit@l Furnace® reheating furnace

Stein Digit@l Furnace® reheating furnace: low OPEX, high performance

Fives is proud to design and supply the steel industry’s most cost-effective walking beam furnace for the reheating of slabs, beam blanks, blooms and billets. More than 150 years of expertise in thermal engineering have gone into the design of the Stein Digit@l Furnace® technology, and in particular the latest generation Stein Digit@l Furnace® AT 2.0. Today this equipment offers the best value for money on the market when taking into account initial investment, operating costs, scale loss and product quality.

The Stein Digit@l Furnace features:

  • Flat roof profile
  • Side burners only
  • High convection inside furnace
  • Recuperative zone length adjusted to production
  • Low exhaust temperatures
  • Optimum heating curves
  • Transient stages optimised
  • Flame length adjustment (optional)
  • Independent firing
  • Level 2 optimization with profile feedback

The Stein Digit@l Furnace advantages:

  • Consistent flame shape and heating quality
  • Ultra low NOx: lower than 50 ppm
  • Fuel saving: 5% reduction compared to market furnaces
  • Digital combustion system with AdvanTek® burners: flame length adjustment 
  • Homogeneous temperature in the heating chamber and product section
  • Individual on/off control with Virtuo® thermal solution
  • Minimized scale loss and decarburization
  • Longer refractory lifetime
  • Reduced maintenance
Stein Digit@l Furnace® - slab reheating


Stein Digit@l Furnace® technology was developed to answer the steel industry’s need for equipment that can adapt to the variable demand of different applications. It can be applied to all types of semi-finished products, including:

  1. Hot-rolled coil for automotive quality (carbon) steel and for other steel grades (stainless or electrical steel)
  2. Heavy plate for different applications, such as construction, bridges, pressure vessels, tubes, pipes and shipbuilding
  3. Rails for high-speed trains, sections, profiles for building applications, wire rods and construction steels

Significant references

References (flat products)

  • Two 450 t/h Stein Digit@l Furnace® for the 5 mln t/y hot strip mill - JSW Dolvi Works (India)
  • Two 300 t/h Stein Digit@l Furnace® AT 2.0 -  Allegheny Technologies Incorporated (ATI), ATI Flat Rolled Products (USA)
  • Two 300 t/h Stein Digit@l Furnace® AT 2.0 - Steel Authority of India Ltd. (SAIL), Rourkela Steel Plant (India)
  • 300 t/h Stein Digit@l Furnace® AT 2.0 - Steel Authority of India Ltd. (SAIL), Bokaro plant (India)
  • Two 200 t/h Stein Digit@l Furnace® for the new metallurgical complex Mill-5000 - Vyksa Steel Works, OMK group (Russia) 

References (long products)

  • 150 t/h billet reheating Stein Digit@l Furnace® 2.0 for the new bar mill - Bastug (Turkey)
  • 180 t/h billet reheating Stein Digit@l Furnace® 2.0 for the rolling mill -  Diler Demir Çelik (Turkey)
  • 70 t/h billet reheating Stein Digit@l Furnace® 2.0 for the new section mill - Izmir Demir Çelik (Turkey)
  • The first billet Stein Digit@l Furnace® in Europe; 250 t/h beam blank reheating Stein Digit@l Furnace® 2.0 - elsa Groupfor (Spain, Poland)
  • 200 t/h & 160 t/h billet reheating Stein Digit@l Furnace® - Jindal Steel (India)

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