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 Crucible furnaces 1700 ° C Material Testing

Crucible furnaces 1700 ° C

Product Code:1700 C-loading up or down

Need more Info? (514) 354-2511 - 1-800-463-4363

The Model CF56724C Crucible Furnace is used for high temperature research under three methods of processing: air, controlled atmosphere, or vertical tube orientation using an interchangeable vestibule as an insulating sleeve (which requires a vertical tube adaptation kit).

Graduated density Moldatherm® insulation combined with a unique right-angle bend heating element, sidewall mounted, delivers excellent chamber uniformity, fast heat-up and recovery, and energy conserving performance.

  • Requires independent controller (ordered separately, see chart)
  • Chamber is accessed by top or bottom with manually operated lifting mechanism; work load may be raised and lowered with convenience and safety
  • Long-life molybdenum disilicide heating elements resist thermal shock, withstand rapid cycling over extended periods
  • Individual elements easily replaceable without matching resistance values
  • Elements mounted on four sides of chamber for fast response and recovery
  • Forced-air blowers circulate ambient air throughout the double-wall crucible cabinet to minimize exterior surface temperature
  • Long-life Type "B" thermocouple for accurate high temperature measurement. Includes 10' compensated lead wire with polarized plug


Processing options

In addition to air processing, the 1700°C crucible furnace can be used for atmosphere processing using an inverted ceramic crucible over the load forming a muffle. Inert gas is supplied through inlet and outlet tubes (customer supplied). Gas flow is controlled via an adjustable N2 flowmeter, included.

For use in a vertical tube configuration, either air or controlled atmosphere processing, the furnace requires an optional Adaptation Kit ordered to match the size of the desired process tube (customer supplied).


Vertical tube adaptation kit
The Vertical Tube Adaption Kit creates a 1700°C tube furnace with air or inert atmosphere control using the Model CF56724C crucible furnace as the heating source. Each field installed kit (see ordering chart) is selected based on intended process tube size, and includes two tube vestibules (D), two tube insulating sleeves (B) with cover plate (C) and outlet plugs (A). Process tube and atmosphere piping are not included. Contact us for more information.


Model No.
1" (2.54cm)
2" (5.08cm)
3" (7.62cm)


Vestibule Top Opening
Vestibule Bottom Opening ID
Working Depth
Exterior Dimensions (WWxF-BxH)
Ship Weight
1700° Crucible furnaces, independent control Temp. range 500-1700°C, 5000 Watts
208/240V, 50/60Hz
250lbs (114kg)

Note: Power cord and interconnecting wiring supplied by customer. Contact us for CE Models.
Actual performance may vary depending on load, chamber size, sample placement, ambient temperature and environmental conditions.


1700°C Controller, Programmable, With Communications

Lindberg/Blue M 1700°C Programmable Controller provides 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.

Controller includes 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.

Option B Overtemperature 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 signal from independent thermocouple.


With Programmer
With Overtemp. Control  
208/240V, 50/60Hz
208/240V, 50/60Hz
Ext. Dimensions
21x15x10in. (53.3x38.1x25.4cm)
21x15x10in. (53.3x38.1x25.4cm)
Ship Weight
130lbs (59kg)
130lbs (59kg)




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