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1500C Max. Dual Zone Tube Furnace with Optional 2" 3" or 4" Mullite Tube GSL-1500X-II-LD

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GSL-1500X-II  is a dual zones tube furnace. Each heating zone is 12" in length and controlled by two precision 30 segments digital temperature controllers independently. One zone is heated by MoSi2 elements and another zone is heated by SiC up to 1500ºC, So the tube furnace can create the various thermal gradient by adjusting the two-zone temperature or longer constant temperature zone. It is an excellent furnace to prepare functional materials under thermal gradient, and also can be used for epitaxial film growth by CVD or PVD with a vacuum system.

Furnace structure

  • Double-layer steel case with two cooling fans, which ensure low surface temperature
  • High purity fibrous alumina insulation for energy saving


  • 9 KW
  • Require 60A Air breaker switch


  • AC 220-240 Single Phase, 50/60 Hz

Heating Zone Length

  • Two zones heated separately
    • Zone 1:  working temperature  800 - 1500ºC (heated by SiC ),  length: 12" (300 mm)
    • Zone 2:  working temperature  800 - 1500ºC  (Heated by MoSi2) heating 12" (300 mm)
  • Constant temperature zone length: 14" within +/-2ºC  ( if two-zone setting at the same temperature )
  • Max. Heating rate: 10ºC/min

Mullite Tube Size

50.8 mm O.D. x 44.5 mm I.D
x 1000 mm  Length
76.2 mm O.D. x 70mm I.D
1000 mm  Length
102mm O.D. x 92mm I.D
1000 mm  Length

Tube and Flange

    • Mullite Tube made in the USA, which has much better thermal shock resistance than Alumina tube.
    • Stainless steel vacuum sealing flange with valve and meter is included
    • The thermal block is included. See picture below middle how to place
    • You may order flange support to avoid tube rotating ( click Pic below right )
Click here to order spare        
Fitting Ports
  • In order to increase the throughput and achieve high vacuum, you may replace the standard barbed hose fitting with the KF25 adapter, please click underline to order.
  • For supplying high-pressure gas, you may replace the standard barbed hose fitting with the VCR Face Seal Fitting, please click underline to order.

Temperature Control

  • PID automatic control via SCR (Silicon Controlled Rectifier) power control 
  • 30 programmable segments for precise control of heating rate, cooling rate and dwell time.
  • Built-in over-temperature alarm and protection allows for operation without the attendant.
  • +/- 1 ºC temperature accuracy.

Heating Elements

  •  Zone one: 8 pcs U type SiC rods (1500C grade )
  •  Zone two: 8 pcs U MoSi2 rods (1800C grade )
Power cable & plug
  • 10 feet length 8-3 AWG heavy duty UL approved power cable is included
  • Extra length cable can be ordered by click the picture below
  • 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 (50A plug)


780 L x 450 W x 720 H,mm

Net Weight

150 kg


One-year limited warranty (Consumable parts such as processing tubes, o-rings and heating elements are not covered by the warranty, please order the replacement at related products below.)

Laptop, software & WiFi Control

Brand new laptop with Microsoft Window 10 and Microsoft Office 2013 (30 days free trial) 
Labview Based Temperature Control System (EQ-MTS01) enables users to edit temperature profile, manage heat-treatment recipes, record and plot data for MTI furnaces.
A wireless remote control provides up to 300 meters operating range.
The above features are available upon request at an extra cost (up to $1,000).
Note:  The software is only compatible with MTI’s Yudian Temperature Controller.
Eurotherm precision temperature controller with +/-0.1°C accuracy is available upon request at the extra cost.       
  • CE Certified
  • NRTL / CSA Certification is available upon request, additional charges will apply

Shipping package size

47" x 45" x 45"(1200L x 1150W x 1150Hmm)

Shipping weight

396 Lbs


How to set up ceramic tube and vacuum flange for MTI Tube furnace

  Click here to learn the installation of a gas regulator.
  • The tube furnaces with alumina tube are designed for use under vacuum and low pressure < 0.2 bar/ 3 psi
  • The flow rate for gases should be limited to < 200 SCCM 
  • Attention: A two-stage pressure regulator must be installed on the gas cylinder to limit the pressure to below 3 PSI for safe operation. Click here to learn the installation of a gas regulator.
Operation Instructions      

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