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Nabertherm Cold-Wall Retort Furnaces up to 2400 °C NEW
Miscellaneous lab equipment >> Nabertherm Cold-Wall Retort Furnaces up to 2400 °C NEW
Nabertherm Cold-Wall Retort Furnaces up to 2400 °C NEW
"VHT 8/18-GR - VHT 100/18-KE
The compact furnaces of the VHT product line are available as electrically heated chamber furnaces with graphite, molybdenum or MoSi2 heating. A wide variety of heating designs as well as a complete range of accessories provide for optimal 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 non-flammable 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.
If you intend to debind in an inert atmosphere, we recommend the use of a process box. The exhaust gases are vented directly from the box to the exhaust gas torch." (Nabertherm)
Alternative Heating Specifications
The following heating systems are available for the different application temperatures:
VHT ../GR with Graphite Insulation and Heating
- Suitable for processes under protective and reaction gases or under vacuum
- Tmax 1800 °C or 2200 °C
- Max. vacuum up to 10-2 mbar depending on pump type used
- Graphite felt insulation
- Temperature measurement using type B thermocouple (version to 1800 °C)
- Temperature measurement using optical pyrometer (version to 2200 °C)
VHT ../MO or ../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 (see table)
- Max. vacuum up to 5 x10-5 mbar depending on pump type used
- Insulation made of Molybdenum steel sheets
- Temperature measurement with thermocouple, type S for models with 1200 °C
- Temperature measurement with thermocouple, type B for models with 1600 °C and 1800 °C
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
- Temperature measurement by thermocouple type B
| VHT ...-../GR | VHT ...-16/MO | VHT ...-18/W | VHT ...-18/KE | |
|---|---|---|---|---|
| Inert gas | √ | √ | √ | √ |
| Air | to 400 °C | - | - | √ |
| Hydrogen | √ | √ | √ | √¹ |
| Rough vacuum and fine vacuum (>10-3 mbar) | √ | √ | √ | √² |
| High vacuum ( | - | √ | √ | - |
| Oxygen | - | - | - | √ |
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