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Tube furnaces

Tube furnaces of the ThermoLine-TUBE series include heating furnaces with working tube of any adjustment and material at process temperatures up to 1800 °C. The tube furnace can be individually adapted to the process requirements. Due to the folding mechanism, it is possible to change the working tubes made of different materials (e. g. ceramics, quartz glass, heat- and scale-resistant steels, nickel-based alloy).

Custom-made tube furnace

Further options include equipment with inert gas purging and/or a rapid cooling system as well as the design as a rotary kiln for continuous processes. These flexibly applicable industrial furnaces and laboratory plants are designed and built specifically for the requirements of the customer. In example for the use of research purposes with regard to the reaction of different substances at different temperatures and environments as well as debinding and sintering of ceramics or debinding and sintering of metals.


Spectrum plant data

Plant data:

  • Working tube & volume according to process requirement
  • Working tube arranged vertically or horizontally
  • Temperatures up to 1800 °C
  • Operation under vacuum, protective or forming gas
  • Folding mechanism for exchange of working tubes
  • Working tube static or as rotary tube


  • Made of stainless steel or mild steel with coloring
  • Wall structure:
  •   → Working tube
  •     → Heating elements
  •       → Radiation shields/ thermal insulation
  •         → Stainless steel sheeting
  • Control cabinet separate or integrated in the rack

Measurement, control & regulation technology:

  • Siemens PLC, industrial PC or industrial controller
  • Control of power according to process temperatures
  • Temperature measurement by thermocouples and pyrometer
  • Single or multi-zone control of the heating elements
  • Running of the process in program segments (ramps, holding times, change of atmosphere etc.)
  • Documentation of process data for quality assurance

Ingolf Jaeger

Head of Sales
Dipl.-Ing. Mechanical Engineering

Phone.: +49 (0) 3731 1683-15

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