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1500°C Compact Hydrogen Gas Tube Furnace with 2" Alumina Tube and Hydrogen Detector & Shutdown Valve - GSL-1500X-50HG

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Item Number: GSL-1500X-50HG
Transported by LTL Freight (Truck)


Upgrade to Eurotherm Temp. Controller

GSL-1500X-50HG tube furnace is designed for processing material under hydrogen gas up to 1500°C safely. The 50 mm OD processing tube is made of pure alumina, and one hydrogen gas detector is included for cutting off hydrogen gas via a built-in solenoid valve immediately upon detection of hydrogen gas leaks. The furnace can be used with all kinds of inert gasses and oxygen gas as well. The precision temperature controller provides up to 30 programmable segments for the heating profile.  

Furnace Structure
  • Double layer steel casing with air cooling to keep furnace surface temperature lower than 60°C. 
  • High purity fibrous alumina insulation for Max. energy saving.

  • Hydrogen detector and solenoid valve are included for safe operation

  • The hydrogen gas furnace must be placed under fume hood which is not included. Please click to view the spec of MTI EQ-FH-36 fume hood.


4.0  KW  Max. ( 30A breaker required)

Voltage AC 208-240 Single Phase, 50/60 Hz
Max. Temperature 1500°C  ( < 1 hour )
Continuous Temperature 1400°C
Max. Heating Rate  <= 10°C /min
Processing Tube

·        Material: High purity Alumina Tube  

·        Tube Size:  50 O.D x 38 I.D. x 700  Length. (mm )

·         Two 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)

Heating Zone length 6" ( 152 mm) 
Constant temperature zone 80  mm (+/-2°C)
Temperature controller
  • PID automatic control via SCR (Silicon Controlled Rectifier) power control, e.g. current limiting phase angle fired the resistor with 51 steps programmable.
  • Self-tuning and built in protection from overheated and broken thermal couple. Please click here to learn why SCR is more accurate than SSR (Solid State Relay)
  • MET certified 30 programmable segments for precise control of heating rate, cooling rate and dwell time.
  • Built in PID Auto-Tune function with overheating & broken thermocouple protection.
  • Over temperature protection and alarm allows for operation without attendant(s).
  • +/- 1 ºC temperature accuracy.
  • RS485 Communications Port.
    • Advanced Temperature Control (Optional)
    • MTS02-Y Temperature control software kit (for YD518P series controllers) + 15" laptop package is available at the options bar. Click for the detail information about the MTS02-Y software kit. 
    • You may upgrade the temperature controller to the Eurotherm 3504 Temperature Controller which is fully compatible with LabVIEW. This package includes a Eurotherm 3504 programmer, a communication cable (RS485 - USB) and a software CD. Click the pic below to view the full spec of Eurotherm 3504 temperature controller. 
Temperature Accuracy +/ - 1°C
Flanges and Gas Inlet
  •  One pair stainless steel vacuum flange are installed on two ends of the tube which allow high vacuum up to 10E-5 torr and 5 PSI positive pressure.
  • One solenoid valve is installed on the left of the flange for Hydrogen gas inlet. It connects with hydrogen detector.  Once hydrogen gas leak is detected ( 10% below hydrogen explode point ), gas inlet valve will be shut down immediately
  • One pressure gauge is installed on the end of the gas inlet.  Hydrogen gas pressure must be controlled under 5 PSI, which can be adjusted by a stainless steel needle valve.

Left flange side
Right flange side
Hydrogen Detector System
  • One Honeywell UL Approved Sensepoint Gas Detector is Integrated into the system.
  • Working Temperature Range:   40ºF to +149ºF (-40ºC to +65ºC)
  • Alarm Point:                            H2 Limited Explosive Line 10% (10% LEL).  Once detecting H2 gas beyond the point, it will shut off the inlet valve to the H2 automatically.

  • One 16 -160 ml/min floating meter is installed on gas-outlet end for adjusting gas flow rate
  • 1/4" Dia stainless steel tube is installed for burning hydrogen gas during gas flowing
  • One long lighter is included in the standard package for igniting hydrogen gas manually.
  • Solenoid Value automatically shuts down the gas inlet in case of system failure
Heating Element
Dimension 400 x 300 x 530 mm (15.7" x 12" x 21")
Net Weight 45  Kg
Shipping weight 45 kg (100 lbs)
Dimension after crafting 45" x 25" x 37"  ( 120 Lbs) 
Warranty One year limited warranty for electrical and mechanical parts
Laptop, software & WiFi Control (Optional)
  • Brand new laptop with Microsoft Window 10 and Microsoft Office 2013 (30 days free trial) for immediate use.
  • Labview Based Temperature Control System (EQ-MTS01) enables user to edit temperature profile, manage heat-treatment recipe, record and plot data for MTI furnaces.
  • A wireless remote control provides up to 300 meters operating range.
  • Above features are available upon request at an extra cost (up to $1,000). Please contact us for more information.
  • Note: 
    The software is only compatible with MTI’s Yudian Temperature Controller


  • CE Certified
  • UL / MET / CSA Certification is available upon request, additional charges will apply
  • Temperature controller is MET and CE Certified
  • Transformer is UL Certified

Click here to learn more about the installation of a gas regulator.
  • The tube furnaces with alumina tube are designed for using under vacuum and low pressure < 0.02 MPa / 0.2 Bar/ 3 PSI 
  • 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. 
  • Never heat the furnace while the gas release valve is closed and a positive pressure condition exists within the furnace chamber. The pressure gauge must be used to closely monitor the chamber condition at all times during the heating process; please open the gas release valve immediately once the chamber pressure has reached over 3 PSI to prevent unforeseeable damages.
  • The flow rate for gasses should be limited to < 200 SCCM ( or 200ml/min )
  • The hydrogen gas furnace must be placed under fume hood Please click here to view the spec of MTI EQ-FH-36 fume hood.
  • For first time buyer, Safe operation training is required at MTI facility with free of charge.
  • Vacuum limit definition for all alumina tube furnaces: * Vacuum pressures may only be safely used up to 1500°C

Operation Instructions

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