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Compact 5'' Vertical Quartz Tube Furnace (1100C ) with SS Vacuum Flanges - OTF-1200X-S-VT-5

In stock
Item Number: OTF1200XSVT5
Transported by LTL Freight (Truck)
OTF-1200X-S-VT-5 is a compact 5" Vertical Tube Furnace with vacuum-sealed flanges.  It provides fast heating under vacuum or flowing gas atmospheres.  A precision temperature controller can provide up to 30 segments of the heating, cooling, and dwelling steps with +/- 1 oC accuracy.  It is an ideal furnace for carrying out quenching tests or modifying it into a CVD and PVD coating furnace.

Furnace Casing

  • Double-layer steel structure with air cooling
  • Split door design for easy installation of tube
  • High purity Al2O3 fibrous insulation designed for maximum energy saving
  • Aluminum frame for easy operation
  • May be modified into a CVD or vapor phase polymerization furnace upon request at the extra cost.


3 KW


208 - 240VAC,  Single Phase, 50/60 Hz 

Max. Temperature

1200oC ( < 1 hour )

Continuous Temperature


Max. Heating Rate

<= 15 oC /min

Tube Size and Materials

Fused quartz tube: Φ130 (OD)× Φ120(ID)× 750(L), mm

Heating Zone Length

300mm  (single zone)

Constant Heating Zone 100mm (+/-2oC)

Temperature Controller

  • 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 allow for operation without attendant(s).
  • +/- 1 ºC temperature accuracy.
  • Eurotherm 3000 controller is available  with +/- 0.1oC accuracy
Heating Elements
Fe-Cr-Al Alloy doped by Mo
Vacuum Sealing

  • Two stainless steel flanges with vacuum gauge and valves included
  • A hook ring is welded inside of the top flange for hanging samples or crucibles by wire
  • You may order an optional 2" flange (for 50mm O.D. tubes only) with 1/4" feedthrough port for inserting a thermocouple or rod
Fitting Ports


Vacuum Level
 Vacuum pump and high vacuum station

  • 10-2 Torr by the mechanical pump
  • 10-5 Torr by turbopump
  • Please click the picture left column to order the vacuum pump separately.



Net Weight

 about 70 Kg (excluding mobile cart)

Shipping Weight

 250 lbs


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

Laptop &  software (Optional)

  • Brand new laptop with Microsoft Windows 10 and Microsoft Office 2013 (30 days free trial) \
  • Labview-Based Temperature Control System (EQ-MTS01) enables a user to edit temperature profiles, manage heat-treatment recipes, record, and plot data via Laptop 


  • CE Certified
  • NRTLCertification is available upon request at the extra cost

Click here to learn the installation of a gas regulator

  • Tube furnaces with quartz tubes are designed for use under vacuum and low pressure < 0.2 bars
  • 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 about the installation of a gas regulator.
  • The quartz tube furnaces only can be used up to 1000°C under vacuum pressures

Operation demo video


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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. Prices vary from country to country.
2. We may add extra charges for paper orders and NET 30 terms due to extra labor costs.
3. The prices listed are subject to change without notice.