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1800°C Vacuum and Tube Furnace (60mm OD) with Kanthal Super-1900 Heating Element - GSL-1800X-K60

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GSL-1800X-K60 is a bench-top tube furnace with Kanthal Super-1900C Grade MoSi2 Heating Elements and high-quality alumina refractory board with ZrO2 liner. Vacuum sealing flanges with valves, vacuum gauge,  and a high purity alumina processing tube (60mm O.Dx 1000mm L) are included for immediate use. The temperature of the GSL-1800X-K60 tube furnace is controlled by a 30 segment programmable high precision SCR (Silicon Controlled Rectifier) digital controller with an accuracy of +/-1 ºC. This tube furnace has a max. working temperature up to 1800 ºC. It is widely used in material & chemical researching labs to sinter all types of new material samples under vacuum and other gas conditions.



Furnace Structure

  • Double-layer steel casing with air cooling.
  • Two cooling fan inside to keep case temperature < 60oC.
  • High purity Alumina refractory chamber with 15mm thick 2500ºC grade YSZ ceramic liner for max energy saving.
  • 99.8% purity Alumina tube made in the USA and comes with, vacuum flange, gauge & valves are included. 

Power Consumption

Max. 7KW

Input Voltage

Single Phase, 220V AC,  50/60 Hz  (50A breaker required)

Max. Working Temperature

  • 1750oC  continuous
  • 1800 oC  Max. < 2 hours

Max. Heating / Cooling Rate

5oC / min ( T< 1600oC ); 2oC / min ( T>1600oC )

Heating Zone

300 mm 

Constant Temperature Zone

 100 mm +/- 5oC

Heating Elements

Kanthal Super-1900 Grade MoSi2 - 330mm L, 8pcs, made in Sweden

Temperature Controller

Temperature controller interface

The optional PC control module

Optional Eurotherm 3204 

Standard temperature controller:
  • Proportional–integral–derivative control (PID control) and auto-tune function
  • 30 segments programmed with ramping, cooling and dwelling steps
  • Built-in over-temperature alarm and thermocouple failure alarm
  • +/- 1 ºC temperature control accuracy
  • Default DB9 PC communication port (PC control module and software are sold separately. See optional
  • MTS-02 PC control module (also including cable and software) is an add-on option for PC control.
    • It is recommended to purchase the module together with the furnace. We install and test it before shipping. 
    • It is recommended to purchase the laptop (with software pre-installed) from us to avoid software conflict.
    • Please note the module is not sold solely in the future.
  • Eurotherm 3204 Temperature Controller is optional for an additional $1795 including installation and testing. This package also includes the communication cable (RS485 - USB) and software CD. Click here to view the full spec.

Tube Materials:  

High purity Al2O3 ceramic, Purity > 99.8%

Processing Tube

  • Premier Grade alumina tube made in the USA
  • ID: 50mm x OD: 60 mm x 1000 mm length
  • Four fibrous ceramic tube blocks are included for blocking heat radiation from inside tube (Ceramic blocks must be fully inserted into the furnace chamber before heating).

Sealing Flanges

  • One pair sealing flange with double silicone high-temperature O-ring is included.
  • Two SS needle valves and one dial vacuum gauge are installed with flange for immediate use.
  • Vacuum pressure can reach 50 mTorr by a quality mechanical vacuum pump and 10^-5 torr by a turbo molecular pump. Please click the picture below to see the flange assembling details.

Fitting Ports


Vacuum Level

  • Limited by the vacuum pump
    • 50 mtorr can be achieved by a mechanical pump
    • 10^-5 torr can be reached by molecular pump
  •  The vacuum pump is not included, please order separately by clicking here

Power Cable & Plug

  • 10 feet long 10-3 AWG heavy duty UL approved power cable is included. Extra length cable can be ordered by click picture below-left
  • The plug is not included. You can order from your local hardware store according to female plug in your lab, or order from the link below right (30A plug)
Dimensions 590L x 490W ×760H, mm
Net Weight 150Kg
Shipping Dimensions 49"x40"x47"
Shipping Weight 520lbs


One-year limited manufacturer warranty with lifetime support (consumable parts such as furnace liner, processing tubes, and O-rings are not covered by the warranty, please order replacements at related products below).

Laptop, software & WiFi Control(Optional)

  • Brand new laptop with Microsoft Windows 10 and Microsoft Office 2013 (30 days free trial) for immediate use.
  • Labview Based Temperature Control System (EQ-MTS01) enables users to edit temperature profiles, manage heat-treatment recipes, record, and plot data for MTI furnaces.
  • A wireless remote control provides up to 300 meters of operating range.
  • The above features are available upon request at an extra cost (up to $1,000). Please contact us for more information.
  • CE Certified
  • NTTL or CSA certification is available upon request at the extra cost
Application Notes
Operation Instructions                 

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