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1200C Max. Dual Furnace (80mm Dia Tube) with One Furnace Slidable for TCVD - OTF-1200X-80-DFSL

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Item Number: OTF1200X80DFSL
Transported by LTL Freight (Truck)


OTF-1200X-80-DFSL is a system of two 80 mm diameter furnaces with 1200ºC Max working temperature that is designed for growing 2D materials. The left furnace is fixed for sublimation, and the right furnace is slideable to achieve fast heating for deposition and fast cooling rate ( ~100°C/min via pre-heating and sliding). The two furnaces have individual temperature controllers without thermal interference. Sublimation temperature can be different from the deposition temperature. It is useful for 2D transition metal dichalcogenide (TMDC) monolayer.



  • OTF-1200X: AC 208-240V Single Phase, 50/60 Hz, 3 kW
  • OTF-1200X-III-C: AC 208-240V Single Phase, 50/60 Hz, 4 kW
  • Sliding Motor: 208 – 240 VAC Single Phase, 50/60Hz, 200 W

Sliding Furnace (Right)

  • Sliding Single-zone Furnace OTF-1200X
  • Sliding distance: 300 mm
  • Total heating zone length: 440mm
  • Constant temperature zone: 150mm (±1 °C) in the center
  • Heating elements: Fe-Cr-Al Alloy doped by Mo
  • Max temperature: 1200 °C (<1 hour)
  •                               1100 °C (continuous)
  •                               1000°C (under vacuum)
  • Max heating rate: 10 °C/min
  • Thermocouple: Type-K
  • Furnace models and sliding distance can be customized, please contact MTI for options
Stationary Furnace (Left)

  • Stationary Three-zone Furnace OTF-1200X-III-C
  • Heating zones: 152.4mm (6") + 152.4mm (6") + 152.4mm (6")
  • Total heating zone length: 450 mm
  • Constant Temperature Zone: 200 mm (±1 °C) in the center
  • Heating elements: Fe-Cr-Al Alloy doped by Mo
  • Max temperature: 1200 °C (<1 hour)
  •                               1100 °C (continuous)
  •                               1000°C (under vacuum)
  • Max heating rate: 10 °C/min
  • Thermocouple: Type-K
  • Furnace can be customized to other available models, please contact MTI for options

Processing Tube 

  • High purity fused quartz tube
  • Size:  80mm O.D x 72mm I.D x 1800mm Length
  • Max Pressure: 0.4 bar (5.8 psi)
  • Max flow rate: 1000 sccm
  • Workflow: right to left

Temperature Controller

  • The FA-YD518P-AG temperature controller is included.
  • Proportional–integral–derivative control (PID control) and auto-tune function
  • 30 segments programmed with ramping, cooling and dwelling steps
  • Built-in over-temperature alarm and thermocouple failure alarm
  • +/- 1 ºC temperature control accuracy
  • Default DB9 PC communication port
  • Four K-type thermal couples are included. 
  • Optional PC control and software:  
    • The furnace may be operated by a PC with free software.
    • We recommend you order a computer (laptop) from us to avoid software installation problems. For more information please click here

Temperature Controller (optional)

  • All temperature controllers can be graded to the Eurotherm 3000 Temperature Controller with +/- 0.1°C accuracies. Click the pic on the left to view the full specs
  • This package includes:
    • One (1) Eurotherm 3004 controller for single-zone furnace
    • Three (3) Eurotherm 3008 controllers for three-zone furnace
    • Communication cables (RS485 - USB) and software

 Vacuum Flanges

  • Stainless vacuum flanges with a vacuum gauge ( click picture below to see details) are installed on both ends of the tube.
  • Water cooling flanges are avaiable upon request, if exhaust cooling is needed.
 Sliding Control
  • Double Linear Sliding Rails made of Cr-plated steel
  • Electric motor with manual control of speed and direction
  • Limit switches for motion stop
  • Sliding length: 300 mm

 Vacuum Level 

  • Limited by pump ( pump is not included, click on pictures to order )
    • 10E-5 torr can be achieved via molecular pump
    • 10E-2 torr can be achieved via a mechanical pump.

Optional for upgrade

  • 1-9 channel gas mixing and delivery models is available ( click picture 1 below to order )
  • You may need a cold trap to condense the exhaust gas (Pic. 2)
                Pic. 1       Pic. 2  


  • Assembly: 2250 mm L × 450 mm W × 680 mm H

 Net Weight

~ 120 Kg

Shipping Weight

400 lbs


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


  • CE Certified
  • NRTL or CSA certification is available at extra cost.

Application Notes

Click here to learn the installation of a gas regulator


  • Fast sample cooling can be achieved by sliding the heating chamber away. Please wear protective gear such as heat resistant suit & gloves if you intend to do so. DO NOT TOUCH THE TUBE SURFACE WHEN IT IS HOT!

Operation Instructions


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1. Prices listed online are valid for the US market and who pay by credit card only. There will be extra charges for shipping & handling. Price various from country to country.
2. We may add extra charges for paper order and net30 terms due to extra labor costs.
3. The prices listed are subject to change without notice.