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1750ºC Bench-Top Vacuum and Atmosphere Tube Furnace ( 60mm OD) with Kathal Super-1800 Heating Elements - GSL-1750X-60

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GSL-1750X-60 is a CE certified compact tube furnace with  Kathal Super-1800C Grade MoSi2 Heating Elements and high quality alumina refractory board with ZrO2 liner. Vacuum sealing flanges with valves, vacuum gauge,  and a 80mm dia. high purity alumina processing tube are included for immediate use.  The temperature of GSL-1750X-60 tube furnace is controlled by a 30 segment programmable high precision SCR (Silicon Controlled Rectifier) digital controller with accuracy of +/-1 ºC. This tube furnace has a max. working temperature up to 1750 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 10mm thick 1800C grade YSZ ceramic coating for max energy saving.
  • Alumina tube, vacuum flange, gauge & valves are included.
Power Consumption Max. 5.2KW 
Input Voltage Single Phase, 220V AC, 50/60 Hz (40A breaker required)
Working Temperature
  •  Max. 1750ºC < 2 hours.
  • Continous: 1700ºC 
Max. Heating / Cooling Rate 5ºC / min
Heating Zone 457 mm (18") 
Constant Temperature Zone 150 mm (6")
Heating Elements
Kathal Super 1800C grade heating elements- 330mm L, 8pcs, made in Sweden
Temperature Controller
  • PID automatic control via SCR (Silicon Controlled Rectifier) power control with phase angle fired, current limiting resistor.
  • 30 programmable segments for precise control of heating rate, cooling rate and dwell time.
  • Please click here to learn why SCR is more accurate than SSC (Solid state relay).
  • Built-in over temperature alarm and protection allows for operation without attendant.
  • +/- 1 ºC temperature accuracy.
  • RS485 Communication Port.
  • Optional:  
    • The furnace may be operated by PC by installing a control module. Please order a MTS-02 control module at extra cost.  
    • If you order the PC control module together with the furnace, we will install and test it before shipping. We recommend you to order a computer (laptop) from us to avoid software installation problems. For more information please click here.
Tube Materials High purity Al2O3 ceramic, Purity > 99.9%
Processing Tube
  • Premier Grade alumina tube made in USA
  • ID: 72mm x  OD: 80 mm   x 1000 mm length.
  • Four fiberous ceramic tube blocks are included for blocking heat radiation from inside tube (Ceramic blocks must be fully inserted into the furnace chamber before heating).
  • Quartz blocks (optional) are ideal for cleaner processing enviroment and higher vacuum efficiency.
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 quality mechanical vacuum pump and 10^-5 torr by turbo molecular pump. Please click picture below to see flange assembling details. 
Fitting Ports
Vacuum Level
Limited by vacuum pump
  • 50 mtorr can be achieved by mechanical pump
  • 10^-5 torr can be reached by molecular pump
 Vacuum pump is not included, please order separately by clicking here
Power Cable & Plug
  • 10 feet length 10-3 AWG heavy duty UL approven power cable is included. Extra length cable can be ordered by click picture below-left
  • Plug is not included. You can order from your local haedware store according to female plug in your lab, or order from link below-right (30A plug)
590 L x 490 W x 760 H  mm
Net Weight
160 kg (352 lbs)
Shipping Dimensions
47"x 45"x 47"(1200L x 1150W x 1194H mm)
Shipping Weight
211 kg (465 lbs) 
One year limited manufacture warranty with life time 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).
  • CE Certified
  • If you need pass UL or CSA certifiction, please click picture below to order UL ready version
Application Notes
Operation Instructions
Video: How To Set Up Furnace       VideoController Operation       How to create Temperature gradient

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