1700C 3-Zone Tube Furnace with Vacuum Flanges & Alumina Tube


Ai TFM3 series 1700°C 3-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: TFM3.1700 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.


 Electrical requirements 208-240VAC, 50/60 Hz, single phase
 Tube material High purity (99%) alumina ceramic
 Min. working temperature 300°C
 Max. working temperature 1700°C
 Max. constant working temperature 1600°C
 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 type MoSi2
 Thermocouple type B
 Temperature controller Shimaden fp93 (Japan) with 4 patterns and
40 segments (i.e. 4 x 10 segments or 2 x 20 segments)
Yudian (China)
 Max heating rate 10°C/min
 Recommended heating rate 5°C/min
 Heating zone length Zone1: 8 inches   Zone2: 8 inches  Zone3: 8 inches
 Constant temp zone length Zone1: 6.5 inches  Zone2: 6.5 inches Zone3: 6.5 inches
 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 60mm x 1500mm (OD x length) 80mm x 1500mm (OD x length)
 Maximum output Zone1/2/3: 5kW/5kW/5kW
 Zone1/2/3: 5kW/5kW/5kW

How to Program Across International Furnaces

How to Install an Across International Tube Sealing Flange





Standard Package

 Part descriptionQuantity
Part image
 TFM3 1700C 3-zone tube furnace 1 pc
 Stainless steel vacuum sealing flange set w/ pressure meter 1 set
 Alumina ceramic tube 1 pc
 Flow meter 1 pc
 Spare heating element2 pcs
 Stainless steel hook 1 pc
 Alumina ceramic thermal block 2 pairs
 Thermal gloves 1 pair
 Spare fuse2 pcs
 USB/RS485 computer interface kit 1 set
 Furnace operation manual 1 pc
 Shimaden fp93 temperature controller manual & software 1 pc

Additional information

Tube size

OD 60mm L 1300mm open both ends, OD 80mm L 1300mm 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 (+$1,590.00), 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 (+$8,000.00)


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