1700C 2-Zone Tube Furnace with Vacuum Flanges & Alumina Tube


Ai TFM2 series 1700°C 2-zone tube furnaces use SiC and MoSi2 as their heating elements. Furnace hearth is built with Mitsubishi (Japan) high quality fiber materials. Temperature of this furnace is controlled by high precision temperature controller (Shimaden fp93 from Japan) with +/-1 °C accuracy and 40 programmable segments. Furnace housing is built with double-layer steel and two cooling fans inside keep the furnace body temperature low. Furnace tube is sealed by stainless steel vacuum sealing flanges, it can be used under vacuum and other gases condition. This tube furnace is an ideal tool for sintering all types of materials/chemical. Great for labs or college scientific research use.

These furnaces have built-in interface to a computer. We provide connection cable, adaptor and software that can be used to control the temperature and parameters of the furnace, all from your PC! You can also save a temperature curve for record or study purposes.

All our furnaces are CE certified.

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SKU: TFM2.1700 Categories: ,


Safety features

  • Furnace overheat protection cuts off power when temperature is over the desired range.
  • Thermocouple protection cuts off power when the thermocouple is broken or malfunctioned.
  • Temperature variation protection cuts off power when the difference between actual temperature and target temperature is off the desired range. (refer to controller’s manual)
  • Power failure protection resume furnace operation right after the point of failure when power is back up.
  • Stainless steel flange support makes sure the tube and flanges are secure and in their absolute position, it also longer the life of the tube

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

General specifications

Electrical requirements208-240V, single phase, 50/60 Hz
Tube materialHigh purity (99%) Al2O3 alumina ceramic
Min. working temperature300°C
Max. working temperature1700°C
Max. constant working temperature1600°C
Heating zone lengthZone1: 8 inches Zone2: 8 inches
Constant heating zone lengthZone1: 5 inches Zone2: 5 inches
Rated vacuum pressure
0.001 Pa / 0.0075 millitorr / 0.00001 mbar
Rated positive pressure 0.02 MPa / 150 torr / 3 psi
Refractory liningMitsubishi (Japan) high quality 1800 grade fiber alumina
Heating element typeMoSi2
Thermocouple typeB
Temperature controllerShimaden fp93 (Japan) with 4 patterns and
40 segments (i.e. 4 x 10 segments or 2 x 20 segments)
Max heating rate10°C/min
Recommended heating rate5°C/min
Temperature controller precision+/- 1°C
Vacuum sealing flange kitStainless steel vacuum sealing flanges with one vacuum gauge,
two valves and four thermal ceramic blocks.
ComplianceETL tested to UL and CSA standards (optional), CE
DownloadProduct brochure

Size comparison

Tube size60mmOD x 1200mm L80mmOD x 1200mm L100mmOD x 1200mm L
Furnace dimensions (LxWxH)25″ x 19″ x 27″25″ x 19″ x 27″28″ x 20″ x 30″
Shipping dimensions (LxWxH)47″ x 35″ x 39″47″ x 35″ x 39″50″ x 38″ x 42″
Net weight (Lb)265280350
Shipping weight (Lb)400420450

How to Program Across International Furnaces


How to Install an Across International Tube Sealing Flange



Standard Package


Part descriptionQuantity
Part image
TFM2 1700°C dual-zone tube furnace1 pc
Stainless steel vacuum sealing flange set w/ pressure meter1 set
Alumina ceramic tube1 pc
Flow meter1 pc
Spare heating element2 pcs
Stainless steel furnace hook1 pc
Alumina ceramic thermal block2 pairs
Thermal gloves1 pair
Spare fuse2 pcs
USB/RS485 computer interface kit1 set
Furnace operation manual1 pc
Shimaden fp93 temperature controller manual & software1 pc


Additional information

Weight420 lbs
Dimensions47 × 35 × 39 cm
Tube size

OD 60mm L 1200mm open both ends, OD 80mm L 1200mm open both ends (+$1,000.00), OD 100mm L 1200mm open both ends (+$2,600.00)

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 (+$1,590.00), Ai 110V SuperVac 11cfm 0.3 micron pump (+$2,590.00), Edwards 110/220V 6.9 cfm RV8 pump (+$2,690.00), Edwards 110/220V 21 cfm E2M28 pump (+$5,590.00), Edwards 110/220V 7.5 cfm nXDS10iC pump (+$7,390.00), 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 (+$7,000.00)


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