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1200°C Max. Automatic Sliding Dual Furnace (Ø50mm) for TMDs Growth - OTF-1200X-50-DFSL

1200°C Max. Automatic Sliding Dual Furnace (Ø50mm) for TMDs Growth - OTF-1200X-50-DFSL

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OTF-1200X-50-DFSL is a system of two Ø50 mm furnaces with 1200ºC Max working temperature. It is designed for growing 2D transition metal dichalcogenides (TMDs). The left furnace is fixed for solid precursor sublimation while the right furnace has an automatic sliding function 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 for sublimation and deposition without thermal interference.



  • OTF-1200X-S-II (sliding):   AC 110-120V Single Phase, 50/60 Hz, 1.5 kW
  • OTF-1200X-S (stationary): AC 110-120V Single Phase, 50/60 Hz, 1.2 kW
  • Sliding Motor:                     AC 110-120V Single Phase, 50/60 Hz, 0.2 kW
  • Power cables with NEMA 5-15P are included. 
  • The system working under 208-240 VAC 50/60 Hz is also available upon request. 

Sliding Furnace (Right)

  • Dual-zone furnace OTF-1200X-S-II
  • Sliding distance: 300 mm
  • Heating elements: Mo doped Fe-Cr-Al alloys
  • Heating zone: 200 + 200 mm
  • Constant temperature zone: 70mm (±2°C)
  • Max temperature:  1200 °C (<1 hour)
  •                               1100 °C (continuous)
  •                               1000°C (under vacuum)
  • Max heating rate: 20 °C/min
  • K type thermocouple
Stationary Furnace (Left)
  • Stationary single Furnace: OTF-1200X-S
  • Heating zones: 200 mm
  • Constant Temperature Zone: 60 mm (±1°C)
  • Heating elements: Mo doped Fe-Cr-Al alloys
  • Max temperature:  1200 °C (<1 hour)
  •                               1100 °C (continuous)
  •                               1000°C (under vacuum)
  • Max heating rate: 20 °C/min
  • K type thermocouple

Processing Tube 

  • High purity fused quartz tube
  • Size:  50 OD x 44 ID x 1200 L (mm)
  • Max Pressure: 0.2 bar (3 psig)
  • Max flow rate: 1000 sccm
  • Workflow: stationary to sliding.

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
  • 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.
  • This package includes:
    • One (1) Eurotherm 32H8 controller for single-zone furnace
    • Two (3) Eurotherm 32H8 controllers for dual-zone furnace
    • Communication cables (RS485 - USB) and software

 Vacuum Flanges

  • Stainless vacuum flanges with a pressure gauge are installed on both ends of the tube.
  • Water-cooled flanges are available at an extra cost. 
  • KF25 port for vacuum pumps. 
 Programmable Sliding Control
  • Double Linear Sliding Rails made of Cr-plated steel
  • 24VDC motor with manual and auto modes.
  • The automatic programmable sliding function is integrated with the temperature controller. 
  • 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 module is optional (Pic.1)
  • A cold trap is also available to condense volatile vapor.   (Pic. 2)
  Pic. 1       Pic. 2  


  • Dimensions: 1502 mm L × 420 mm W × 700 mm H (Furnace lid open)
  •                      1502 mm L × 420 mm W × 520 mm H (Furnace lid open)

 Net Weight

100 kg

Shipping Weight

300 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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