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Hi Throughput Quenching Furnace (1350C Max.) With Glove-Box - GSL-1350X-4-VGB

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GSL-1350X-4-VGB is that four vertical quenching tube furnaces joint with the one atmosphere controlled glove box. The integrated purification system is able to reduce the oxygen and humidity to <1ppm.  This helps protect samples from moisture and oxygen exposure during the preparation process.  Four small tube furnaces with 25mm OD x 22mm ID alumina and sealed flange are installed under the bottom of the love box.   Users can vertically load the material into the furnace tubes without exposure samples 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 quenching sample from high temperature ( Max. 1350°C) into oil rapidly under inert gas. It is an ideal tool to study the microstructure of oxygen & moisture sensitive materials at high throughput


System Structure
  • The air-tight joint between the four furnace tubes and glovebox to protects the sample from oxidation in the preparation.
  • Vertical loading of four samples inside the glove box. An electromagnetic release mechanism from the top flange 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); 2.5 KW (for four furnaces)
  • Total:  4.0 KW
  • 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

Electromagnet Release &
Quenching Media Tank

  • 4 sets of Electromagnet Auto-drop Mechanism are installed for sample release under an 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.
  • Four gate valves are connected to quenching tank
1. Flange Structure 2. Flange Operation 3. Gate Valve 4. Quenching Tank 5. Quenching 6. Pulling Cable

France Specs

  • 4 vertical furnaces installed at the bottom of the glove-box for the standard version.
  • Working Temperature: 1400oC < 30 minutes; <1350oC  continuous
  • Heating Rate ≤ 10oC /min 
  • Heating Elements: 4 pcs 1500°C rated SiC    
  • Processing Tube:    alumina tube   ID:22 mm x OD: 25 mm x Length: 450 mm (included)
  • Heating Zone Length : 6" (152 mm)
  • Constant Temperature Zone: 50 mm  (+/- 2°C)
  • Temperature Accuracy: +/- 1.0°C
Temperature Controllers
  • Four  programmable digital temperature are included and operated outside the glovebox 
  • 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 the extra cost

Vacuum Level

  • 10^-2 torr can be achieved by a mechanical pump
  • 10^-4 torr can be reached by a turbopump
  • 10^-5 torr can be reached by faster turbopump system
  • Note: The vacuum pump is not included.  Please click Pic below to order  separately


Please click the image below 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 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
  • Note: The software is only compatible with MTI’s Yudian Temperature Controller


  • CE Certified
  • NRTL certification (UL61010)  or CSA certification is available upon request at extra cost.

Application Notes
Click here to learn how to install a gas regulator.

  • The tube furnaces with mullite tube are designed for use under vacuum and low pressure < 0.02 Mpa / 0.2 Bar/ 3 PSI 
  • Never use graphite crucible in an alumina tube.
  • 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. 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 )
  • Vacuum limit definition for all mullite tube furnaces: * Vacuum pressures may only be safely used up to 1300°C

Operation Instructions

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