Materials Testing
    l'isolation à densité graduée tubular furnace

High Temperature Tube Furnaces

with Independent Control

  • Release, fast heat-up and recovery
  • Heating elements are sidewall mounted to protect integrity of chamber roof
  • Type "B" thermocouples assure accurate temperature measurement

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Why buy from Geneq? - find out more

High-temperature tube furnaces achieve excellent temperature uniformity at 1700°C with rapid heat-up, recovery and cool-down. 

Moldatherm® graduated density insulation adds to safety and performance by forming enhanced insulation protection between the high-temperature chamber and exterior cabinet surface. Moldatherm® graduated density insulation, combined with molybdenum disilicide heating elements, provides superior radial and linear temperature uniformity with resistance to thermal shock. The independent digital temperature control (ordered separately) has 300 programmable segments useful for a wide range of applications.


  • Release, fast heat-up, and recovery reduced thermal process cycle time, and cost savings through quicker throughput and energy efficiency heating elements tolerate rapid cycling over extended periods; elements are easily replaceable without the need to match resistance values
  • Heating elements are sidewall mounted to protect the integrity of the chamber roof; roof penetrations are avoided
  • Type "B" thermocouples assure accurate temperature measurement and long thermocouple life; 10" compensated lead wire with polarized plug included
  • Moldatherm® end vestibules accept 3" O.D. process tube (customer supplied)
  • Optional Moldatherm® vestibules permit operation with 1", 2" and 3" O.D. process tubes for increased versatility
  • Double shell construction and convection cooling design reduce exterior surface temperature
  • Removable louvered panels provide easier access to heating elements and thermocouple



ModelIntegrated ControllerElectrical, 1ØWattsExt. (WxF-BxH)*Process Tube (diameter)Heated LengthShip Weight
1700° High Temperature Furnace, Temp. Range 500 to 1700°C
STF54434CCC59256PCOMC208/240V, 50/60Hz500016x22x19 in.
(40.6x55.9x48.3 cm)
3"(7.62)12"(30.48)95lbs (43kg)
STF54454CCC59256PCOM2CKT208/240V, 50/60Hz1000016x34x19 in.
(40.6x86.4x48.3 cm)
3"(7.62)24"(60.96)165lbs (75kg)
* Process Tubes: These furnaces are designed for use with a variety of process tubes including alumina, mullite, quartz and metallic. Process tubes are not supplied with furnace. For information on process tubes contact us


1700°C Controller, Programmable, With Communications

Lindberg/Blue M 1700°C Programmable Controllers provide 300 programmable segments for a variety of ramp (up and down) and dwell (timed holds) settings. Controller will accept up to 30 individual programs with up to 99 segments per program. The controller visually displays ramp rate, dwell time, program segment and percent power output. A holdback feature allows the operator to set a -process vs. setpoint" temperature value which, when exceeded, holds the program to allow the process to catch up. The controller includes an advanced self-tuning feature which automatically sets the best PID settings for the thermal process. Two digital displays simultaneously indicate actual temperature and setpoint temperature. High limit overtemperature protection is standard. The control console includes a circuit breaker, power module, transformer and cooling fans.

Controllers include RS485 data port (communications card and port) for connection to remote computer, allowing modification, interrogation and data transfer of all instrument control and configuration parameters. Software not included, but is available as an accessory.


Over temperature Control (OTC)

Adjustable digital overtemperature control, factory installed on selected control consoles with "B" designation; see chart. Protects furnace and load in the event of primary control circuit failure. Overrides main controller, assumes temperature control and shuts off power to furnace if high limit is reached. Manual re-set required for safety. Operates via magnetic contacts through signal from independent thermocouple.



Max Temperature1700°C (3092°F)
Outside Dimensions16 x 22 x 19" (40.6 x 55.9 x 48.3 cm)
Chamber Dimensions3" Dia. x 12" Tube (7.5 cm Dia. x 30.5 cm Tube)
Power208/240V / 25A / 5000W
Temperature ControlIndependent
Temperature Range500°C to 1700°C / 932°F to 3092°F
DisplayLED; temperature and setpoint in °C or °F
Process Tube Diameter3" / 7.62 cm
Heated Length12" / 30.5 cm
Shipping Weight95 lb / 43 kg