1800C 1-Zone 80mm OD Tube Furnace w/ Kanthal® Elements

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Mitsubishi refractory lining, Shimaden 40-seg PID controller, overheat/power failure protection, PC interface, vacuum flanges, alumina tube incl. ETL available.


SKU: 690 Category:



TF1800 series tube furnaces feature a chamber with Mitsubishi (Japan) high quality 1900 grade alumina fiber insulation and the famous Kanthal (Sweden) 1900 grade 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.


  • Compact, portable and lightweight design.
  • Standard package includes set of stainless steel vacuum sealing flanges with valves and pressure meter.
  • Dual flanges support ensures 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
 Minimum working temperature  300°C (572°F)
 Max. working temperature   1800°C (3272°F) for less than 5 hours
 * 2 hours maximum continuous run time at maximum temperature 

 Constant working temperature  1750°C (3182°F)
 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 1900 grade fiber alumina
 Heating element type
 Kanthal (Sweden) 1900 grade Molybdenum Silicide (MoSi2)  
 Thermocouple type
 Temperature controller
 Shimaden fp93 (Japan) with 4 patterns and
 40 segments (i.e. 4 x 10 segments or 2 x 20 segments)
 Max heating rate
 5°C/min above 1200°C and 10°C/min below 1200°C (2192°F)   
 Heating/constant zone length
 11″ / 4″
 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.  
 ETL tested to UL and CSA standards (optional), CE
 Download  Product brochure

80mm OD furnace detail specs

 Tube size  80mmOD x 1m L
 Installed heating element  8
 Maximum output  5.5 KW
 Unit/shipping dimensions (LxWxH)  25x19x27″/47x35x39″
 Shipping weight (Lb)  570



How to Program Across International Furnaces


How to Install an Across International Tube Sealing Flange





Standard Package

Part description    



Part image 

 TF1800 tube furnace
 1 pc

 Stainless steel vacuum sealing flange set w/ pressure meter
 1 set

 Alumina tube 80mm OD x 1000mm length
1 pc

 Flow meter
 1 pc

 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 operation manual  1 pc

 Shimaden fp93 temperature controller manual & software   1 pc

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