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9 - 11 April 2019 // Nuremberg, Germany

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Exhibitors & Products POWTECH 2019
Zoom product LOGO_Cold-Wall Retort Furnaces up to 2400 °C

Cold-Wall Retort Furnaces up to 2400 °C

LOGO_Cold-Wall Retort Furnaces up to 2400 °C

Cold-Wall Retort Furnaces up to 2400 °C

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The compact retort furnaces of the VHT product line are available as electrically heated chamber furnaces with graphite, molybdenum, tungsten or MoSi2 heating. A wide variety of heating designs as well as a complete range of accessories provide for optimal retort furnace configurations even for sophisticated applications.
The vacuum-tight retort allows heat treatment processes either in protective and reaction gas atmospheres or in a vacuum, subject to the individual furnace specs to 10-5 mbar. The basic furnace is suited for operation with nonflammable protective or reactive gases or under vacuum. The H2 version provides for operation under hydrogen or other flammable gases. Key of the specification up is a certified safety package providing for a safe operation at all times and triggers an appropriate emergency program in case of failure.

Alternative Heating Specifications
In general the following variants are available wit respect to the process requirements:

VHT ../..-GR with Graphite Insulation and Heating

  • Suitable for processes under protective and reaction gases or under vacuum
  • Tmax 1800 °C , 2200 °C or 2400 °C (VHT 40/.. - VHT 100/..)
  • Max. vacuum up to 10-4 mbar depending on pump type used
  • Graphite felt insulation

VHT ../..-MO or VHT ../..-W with Molybdenum or Tungsten Heating

  • Suitable for high-purity processes under protective and reaction gases or under high vacuum
  • Tmax 1200 °C, 1600 °C or 1800 °C
  • Max. vacuum up to 10-5 mbar depending on pump type used
  • Insulation made of molybdenum rsp. tungsten radiation sheets

VHT ../..-KE with Fiber Insulation and Heating through Molybdenum Disilicide Heating Elements

  • Suitable for processes under protective and reaction gases, in air or under vacuum
  • Tmax 1800 °C
  • Max. vacuum up to 10-2 mbar (up to 1300 °C) depending on pump type
  • Insulation made of high purity aluminum oxide fiber
  • Only fiber materials are used which are not classified as carcinogenic according to TRGS 905, class 1 or 2

Rotary Tube Furnaces for Continuous Processes up to 1300 °C

LOGO_Rotary Tube Furnaces for Continuous Processes up to 1300 °C

Hot-Wall Retort Furnaces up to 1100 °C

LOGO_Hot-Wall Retort Furnaces up to 1100 °C

High­Temperature Furnaces with Molybdenum Disilicide Heating Elements with Fiber Insulation up to 1800 °C

LOGO_High­Temperature Furnaces with Molybdenum Disilicide Heating Elements  with Fiber Insulation up to 1800 °C

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