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1500C Atmosphere Controlled Quenching Furnace with Glovebox - OTF-1500X-VGB

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OTF-1500X-VGB is a vertical quenching tube furnace joints with the atmosphere controlled glove box. The integrated purification system is able to reduce the moisture and humidity to <1ppm.  This helps protect samples from moisture or oxygen exposure during the preparation process. The bulkhead flange ensures a vacuum-tight direct joint between the furnace tube and the bottom of the glove box. Users can vertically load the material into the furnace tube without exposure to the oxygen or moisture. The auto electromagnetic sample release mechanism is used to hang/release the sample in/from the hot zone for heat treatment/quenching. The SS304 quenching chamber at the bottom of the furnace is also airtight which ensures a clean and healthy atmosphere suitable for quenching samples from high temperatures ( Max. 1500°C) into oil rapidly. It is an ideal tool to study phase transition and microstructure of oxygen & moisture-sensitive materials.


System Structure
  • The air-tight joint between the furnace chamber and the glove box protects the sample from oxidation in the preparation, transferring processes.
  • Vertical loading of the material with a glove box above the furnace. An electromagnetic release mechanism can release the sample into the quenching chamber at the bottom.
  • The electric gate valve at the bottom of the tube can isolate the heating chamber from the quenching chamber and open for sample drop when quenching is needed.
  • Both Electromagnet sample release flange and the bottom gate valve are with water cooling jackets which help protect Viton sealing gaskets from over-heated.


  • AC 208-240V Single Phase, 50/60 Hz
  • 1.5 KW (for glove box); 4KW (for furnace)
  • The gas purification station is integrated to ensure a low O2 & H2O environment (<1ppm) in the glove box.
  • Case Material: Stainless steel 304 with 3 mm thickness
  • Chamber dimension: 1200 mm L x 740 mm W x 900 mm H
  • Openable front window panel (tempered glass, 8 mm thick)  for easy device loading
  • Please Click Picture left for detail specification
Hydraulic Press

Electromagnet Release &
Quenching Media Tank

  • Electromagnet Auto-drop Mechanism for sample easy release under vacuum or atmosphere controlled environment.
  • Hinged plate with a hook & cable can hang the sample in the hot zone for heat treatment.
  • Hinged plate releases when the electromagnet is powered off. Then the sample falls into the quenching tank.
  • Rings attached to the top flange for hanging the quartz block to prevent heat dissipation.
  • Improved top flange design allows easy sample reload without uninstalling all parts of the flange.
  • The bottom flange is connected with a 4" gate valve ( electrically operated ) via CF-100 adaptor.
  • The gate valve is connected with a quenching media container which is airtight
  • Note: It is suggested to use oil (such as diffusion pump fluid) as a quenching agent if quenching under vacuum.
  • Flange Structure Flange Operation  Gate Valve Quenching Tank Quenching Pulling Cable

France Specs

  • Working Temperature: 1500oC < 30 minutes; <1400oC  continuous
  • Heating Rate ≤ 10oC /min 
  • Heating Elements: 4 pcs 1500°C rated SiC    
  • Processing Tube:     
    • Mullite tube made in the USA
    • OD:50 mm x ID: 42 mm x Length: 650 mm (included)
  • Heating Zone Length: 6" (152 mm)
  • Constant Temperature Zone: 60 mm  (+/- 2°C)
  • Temperature Accuracy: +/- 1.0°C
Temperature Controllers
  • 30 programmable segments for precise control of heating rate, cooling rate and dwell time.
  • Built-in PID Auto-Tune function with overheating & broken thermocouple broken protection.
  • Over-temperature protection  and alarm allow for operation without attendant(s).
  • +/- 1 ºC temperature accuracy.
  • RS485 Communications Port.
  • PC control software and interface module are optional. Please select the package option. 

Water-Cooled Flanges

  • Both top and bottom flanges have water-cooling jacket (See left picture), which cools and preserves the O-ring sealings on the flange during high-temperature operation
  • Please click the picture below to order water chiller at extra cost

Vacuum Level

  • 10^-2 torr can be achieved by the mechanical pump
  • 10^-5 torr can be reached by the faster turbopump system
  • Note: The vacuum pump is not included.  Please click Pic below to order  separately


 Please click the image to enlarge 

Net Weight


Shipping weight



One-year limited warranty (Consumable parts such as heating elements, processing tubes
and o-rings are not covered by the warranty)

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 the user to edit temperature profiles, manage heat-treatment recipe, 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.
  • Note: The software is only compatible with MTI’s Yudian Temperature Controller


  • CE Certified
  • The furnace is ready to pass NRTL certification (UL61010)  or CSA certification at extra cost.
Application Notes

how to install a regulator.
electromagnet with  5T press

Operation Instructions

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