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Retort furnace

The ThermoLine-VAC series includes industrial furnaces and high-temperature furnaces, suitable for vacuum and process gas. Retort furnaces as so-called hot-wall furnaces offers a cost-effective alternative to large-capacity chamber furnaces. Depending on customer requirements, retort furnaces are designed for high vacuum (1*10-6 mbar) as well as for all process gas atmospheres (in particular argon (Ar), nitrogen (N2), hydrogen (H2) and mixtures thereof).

Custom-made retort furnace

Depending on the retort material, systems for temperatures up to approx. 1200 °C can be realized. The retort is heated from the outside with a conventional furnace. We also manufacture these high-temperature furnaces according to the customer's special requirements. This enables to achieve the best possible results for stress-relief annealing of components, sintering and debinding of ceramics as well as sintering and debinding of metals or other materials. We manufacture our vacuum furnaces or inert gas furnaces as industrial furnaces or laboratory plants.


Spectrum plant data

Plant data:

  • Temperatures up to 1200 °C
  • Useful volume according to requirement
  • Vacuum: up to 1*10-6 mbar
  • High vacuum pumping station, also oil-free
  • Operation under vacuum and/or process gas
  • Technical afterburning (option)
  • Cold trap (option)
  • Design as laboratory furnace


  • Frame made of steel surface treated or stainless steel.
  • Heat- and scale-resistant, high-alloy metallic retort
  • Conventional furnace as heating
  • Radiation shields inside (ceramic-free)
  • Water-cooled, cold door area
  • Control cabinet integrated on the rack
  • Vacuum pumping station integrated

Measurement, control & regulation technology:

  • Siemens PLC, industrial PC or industrial controller
  • Control of power according to heating element temperature
  • Sample thermocouples (option)
  • 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

Request product

Please calculate 4 plus 5.