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1700C 1-Zone Tube Furnace with Alumina Tube and Sealing Flanges


TF1700 series tube furnaces feature a chamber with Mitsubishi (Japan) high quality alumina fiber insulation and molybdenum silicide heating elements. A double walled steel internal housing helps minimize heat loss to exterior surface.

Furnace operation is controlled by Shimaden (Japan) 40-segment digital controller with built-in RS485 digital communications port and USB adaptor, allowing the user to connect to a PC for remote control and monitoring of the furnace. You can also save or export test results.All our furnaces are CE compliant.

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  • Compact, portable and lightweight design.
  • Standard package includes set of stainless steel vacuum sealing flanges with valves and pressure meter.
  • Dual flanges support provides better sealing and longer tube life.
  • Microprocessor based self-tuning PID control provides optimum thermal process with minimal overshoot.
  • Multiple atmosphere processes in a single cycle are possible (ex: binder burn out in air and parts sintering under rough vacuum or inert gas environment.)
  • Built-in ammeter and dual voltmeters for easy monitoring and troubleshooting.
  • Built-in computer interface.
  • Long life type B thermocouple.


  • Overheat protection shuts down the furnace if temperature is outside of acceptable range (refer to controller’s manual) or when the thermocouple is broken or malfunctions.
  • Power failure protection resumes furnace operation right after the point of failure when power is reestablished.

Warning! NEVER fill furnace with explosive gases, including Hydrogen, Carbon Monoxide and Methane.



 Electrical requirements  208-240VAC, 50/60 Hz, single phase
 Tube material  High purity (99%) Al2O3 alumina
 Min working temperature  300°C (572°F) Recommend at least 800°C for longer heating element life
 Max/constant working temperatures  1700°C (3092°F) / 1600°C (2912°F)
* 2 hours maximum continuous run time at maximum temperature
 Rated vacuum pressure
 0.001 Pa / 0.0075 millitorr / 0.00001 mbar
 Rated positive pressure  0.02 MPa / 150 torr / 3 psi
 Refractory lining  Mitsubishi (Japan) high quality 1800 grade fiber alumina
 Heating element / thermocouple type  Molybdenum Silicide (MoSi2) / B-type
 Temperature controller  Shimaden fp93 (Japan) with 4 programs and
40 segments (i.e. 4 x 10 segments or 2 x 20 segments)
 Max heating & cooling rate  5°C (41°F)/min above 1200°C and 10°C (50°F)/min below 1200°C (2192°F)   
 Heating vs constant zone length  12″ / 6″
 Temperature controller precision  +/- 1°C
 Vacuum sealing flange kit  Stainless steel vacuum sealing flanges with one
vacuum gauge, two valves and four thermal ceramic blocks.  
 Compliance  ETL tested to UL and CSA standards (optional), CE
 Download  Product brochure

Size comparison

 Tube size  60mmOD x 1m L  100mmOD x 1m L  120mmOD x 1m L
 Installed heating element  8  8  8
 Maximum output  5 kW  6 kW  7 kW
 Unit/shipping dimensions (LxWxH)  25x19x27″/47x35x39″  25x19x27″/47x35x39  25x19x27″/47x35x39″
 Shipping weight (Lb)  500  550  580



How to Program Across International Furnaces


How to Install an Across International Tube Sealing Flange





Standard Package

Part description    


Part image
 TF1700 tube furnace  1 pc
 Stainless steel vacuum sealing flange set w/ pressure meter  1 set
 Alumina tube 1000mm length 1 pc
 Flow meter  1 pc
 Spare heating element 2 pcs
 Stainless steel hook  1 pc
 Alumina ceramic thermal block  2 pairs
 Thermal gloves  1 pair
 Spare fuse 2 pcs
 USB/RS485 computer interface kit  1 set
 Furnace and Shimaden controller manual 2 pcs

Additional information

Tube size

OD 60mm L 1000mm open both ends, OD 100mm L 1000mm open both ends(+$2,000.00)

Vacuum setup

3/8" hose barb with no pump (no extra charge), KF25 flange port with no pump (no extra charge), Ai 110/220V EasyVac 9 cfm 2-Stage pump w/ filter (+$790.00), Ai 110/220V SuperVac 5.6 cfm 0.3 micron pump (+$1,600.00), Ai 110V SuperVac 11cfm 0.3 micron pump (+$2,300.00), Edwards 110/220V 6.9 cfm RV8 pump (+$3,509.80), Edwards 110/220V 21 cfm E2M28 pump (+$4,863.00), Edwards 110/220V 7.5 cfm nXDS10iC pump (+$6,667.00), Welch 2052 110V 2.3cfm diaphragm pump(+$3,690.00)


No additional accessories (no extra charge), 2 quarts (1.9 L) of ultra grade 19 pump oil (+$34.00), EZ-Swap vacuum pump exhaust filter w/ fittings (+$159.00)

UL, CSA, CE certification

No thanks (no extra charge), ETL tested to UL/CSA standards (+$3,500.00)