High-Temperature Furnaces with Molybdenum Disilicide Heating Elements and Fiber Insulation up to 1800 °C

Very good temperature uniformity and practical details set very high quality benchmarks.

Process Control

Function and equipment

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HT160Boden
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High-temperature furnace HT 29/17
High temperature chamber furnace HT 450/16 with two locking devices per door
High-temperature furnace HT 160/17 with gas supply system
High-temperature furnace HT 64/16S with lift door
High-temperature furnace HT 64/17 with PLC controls and additional options
Automatic gas supply system with solenoid valve and rotameter
Two-door design for high-temperature furnaces > HT 276/..
Reinforced floor as protection for bottom insulation for high-temperature furnace HT 16/16 and higher
Cooled inspection glass made out of saphire glass (left at working temperature, right at room temperature)

Due to their solid construction and compact stand-alone design, these high-temperature furnaces are perfect for processes in the laboratory where the highest precision is needed. Oustanding temperature uniformity and practical details set unbeatable quality benchmarks. For configuration for your processes, these furnaces can be extended with extras from our extensive option list.

  • Tmax 1600 °C, 1750 °C, or 1800 °C
  • Recommended maximum working temperature approx. 50 °C below Tmax of the furnace. Higher working temperatures will increase wear and tear.
  • Dual shell ventilated housing made of textured stainless steel sheets for low surface temperature and high stability
  • Heating from both sides via molybdenum disilicide heating elements
  • High-quality fiber insulation backed by special insulation
  • Long-life roof insulation with special suspension
  • Temperature uniformity at 1450 °C up to +/− 6 °C according to DIN 17052-1 
  • Exclusive use of insulation materials without categorization according to EC Regulation No 1272/2008 (CLP). This explicitly means that alumino silicate wool, also known as “refractory ceramic fiber” (RCF), which is classified and possibly carcinogenic, is not used.
  • Chain-guided parallel swivel door for defined opening and closing of the door
  • Two-door design (front/back) for high-temperature furnaces > HT 276/..
  • Labyrinth sealing ensures the least possible temperature loss in the door area
  • Reinforced floor as protection for bottom insulation as standard from models HT 16/16 upwards (distributed load 5 kg/dm2)
  • Vapor vent in the furnace roof with motorized exhaust air flaps, controlled via the extra function of the controller
  • Stainless steel exhaust hood as interface to customer’s exhaust system
  • Controller with touch operation P570 (50 programs with each 40 segments)
  • Defined application within the constraints of the operating instructions
  • NTLog Basic for Nabertherm controller: recording of process data with USB-flash drive

Additional equipment

Additional equipment

  • Cooling system to cool the furnace with a defined temperature gradient or with a preset fresh air volume. Both operating modes can be switched on and off for different segments by means of the extra function of the controller.
  • Safety package for debinding in air. Debinding technical ceramics is a critical process because of the hydrocarbons that are released. Hydrocarbons are flammable and there is a risk that a flammable mixture could form inside the furnace. Nabertherm offers tailored safety packages with respect to the process and the volume of binder that allow the furnace to be operated safely.
  • Thermocouple inlet with screw cap
  • Thermocouple for the heating control with calibration certificate
  • Protective gas connection to purge with non-flammable process gases (not completely gas-tight)
  • Automatic gas supply system with solenoid valve and rotameter, controlled by the extra function of the controller
  • Refractory brick floor insulation for a higher floor load (Tmax 1700 °C)
  • Lift door
  • Automatic door lock incl. door contact switch
  • Heating elements protected against mechanical damage
  • Special heating element qualities e. g. for zircon oxide applications
  • Ethernet interface
  • Process control and documentation via VCD software package for monitoring, documentation and control

Technical specifications

ModelTmaxInner dimensions in mmVolumeOuter dimensions1 in mmConnectedElectricalWeight
 °Cwdhin lWDHload kWconnectionin kg
HT 08/161600150300150874064017558.53-phase2215
HT 16/16160020030026016820690186012.53-phase2300
HT 29/1616002753003502998574019909.83-phase2350
HT 40/161600300350350401010800199012.53-phase420
HT 64/161600400400400641140890204018.53-phase555
HT 128/16160040080040012811401280204026.53-phase820
HT 160/16160050055055016012501040226021.53-phase760
HT 276/161600500100055027613401600229043.53-phase1270
HT 450/161600500115078045013801820257065.03-phase1570
            
HT 08/171750150300150874064017558.53-phase2215
HT 16/17175020030026016820690186012.53-phase2300
HT 29/1717502753003502998574019909.83-phase2350
HT 40/171750300350350401010800199012.53-phase420
HT 64/171750400400400641140890204018.53-phase555
HT 128/17175040080040012811401280204026.53-phase820
HT 160/17175050055055016012501040226021.53-phase760
HT 276/171750500100055027613401600229043.53-phase1270
HT 450/171750500115078045013801820257065.03-phase1570
            
HT 08/181800150300150874064017558.53-phase2215
HT 16/18180020030026016820690186012.53-phase2300
HT 29/1818002753003502998574019909.83-phase2350
HT 40/181800300350350401010800199012.53-phase420
HT 64/181800400400400641140890204018.53-phase555
HT 128/18180040080040012811401280204026.53-phase820
HT 160/18180050055055016012501040226021.53-phase760
HT 276/181800500100055027613401600229043.53-phase1270
HT 450/181800500115078045013801820257065.03-phase1570
1External dimensions vary when furnace is equipped with additional equipment. Dimensions on request.
2Heating only between two phases

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Catalog

A complete overview of our extensive range of furnaces, ovens and accessories for the laboratory can be found in our “Laboratory” catalog.

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