Split Vertical Tube Furnace with 80mm Quartz Tube & SS Vacuum Flanges - OTF-1200X-80-VT-UL

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Part Number: OTF-1200X-80-VT-UL


OTF-1200X-80-VT-UL is a split Vertical Tube Furnace with vacuum sealed 80mm diameter quartz tube, which can achieve faster sample heating and quenching in vacuum or flowing gas.  Precision temperature controller can provide 30 segments heating and cooling steps with +/- 1°C accuracy. It is an idea furnace for making quenching test and temperature measurement.  The vertical tube furnace is installed in a heavy duty mobile for easy moving.


Furnace Structure
  • Double layer steel structure with air cooling to keep case temperature <65°C
  • High purity fibrous alumina insulation with Special coating to ensure max. energy saving




AC 208-240V Single Phase, 50/60 Hz

Max. Temperature

1200°C(<1 hr)

Continuous Temperature

1100°C for each zone

Max. Heating Rate

<= 20°C/min.

Processing Tube

  • High purity quartz tube with 1200oC max. working temperature
  • Size: OD: 80 mm,x  ID. 72 mm x 1000mm Length
  • Upgrade note:( Processing tube can be replaced by mullite tube from 60 mm OD to 100 mm OD at extra cost, then furnace can be used up to 1250°C )

Heating Zone length

440mm (single zone)

Constant Temperature Zone

150mm (+/-1°C)

Temperature Accuracy

+/- 1°C

Temperature Controller

  • MET certified 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 allows for operation without attendant(s).
  • +/- 1 ºC temperature accuracy.
  • RS485 Communication Port.
  • Optional:  
    • The furnace may be operated by PC by installing a control module. Please order a MTS-02 control module at extra cost. 
    • If you order the PC control module together with the furnace, we will install and test it before shipping. We recommend you to order a computer laptop from us to avoid software installation problems. For more information please click here.
Vacuum & Fitting Ports

Vacuum Level

  • 10E-2 Torr by mechanical vacuum pump.
  • 10E-5 Torr by molecular pump.
  •  Leak rate < 5 mTorr / min.

Heating Element

1300°C Fe-Cr-Al Alloy doped by Mo


550mm(L) x 380mm(W) x 520mm(H) exclude mobile cart 

600mm(L) x 600mm(W) x 1200(H) install with mobile cart

Net Weight

About 80kg (excluding mobile cart)

Shipping  size

45"(L) x 45"(W) x 50''(H)

Shipping weight



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

  • CE Certified
  • All electric components ( >24V) are UL / MET / CSA certified
  • The furnace is ready to pass TUV(UL61010)  or CSA certification at extra cost. ( please click marks below to learn details )

Application Notes
( We may help you to build customized flange to meet your application at extra cost )

  • Customers may calibrate temperature before use to obtain accurate temperature inside tube furnace,  please click here to learn how.
  • Please click picture below to learn how to quenching sample in gas flow and vacuum
    • Approach#1: Traditional wire cut and free-falling
    • Approach#2: Electromagnetic release and free-falling. Please contact us for the customization of this feature.
  • The furnace ca be modified into a HPCVD ( hybrid physical-chemical vapor deposition ) furnace via DIY a sample susceptor ( click picture below-right to see how )


Click here to learn the installation of a gas regulator

  • The tube furnaces with quartz tube are designed for using under vacuum and low pressure <0.2 bar / 3 psi / 0.02 MPa
  • Attention: A two stage pressure regulator must be installed on gas cylinder to limit the pressure to below 3 PSI for safe operation. Click here to learn the installation of a gas regulator.
  • Vacuum limit definition for all quartz tube furnaces: * Vacuum pressures may only be safely used up to 1000°C 




PREMIER SOLUTIONS PTE LTD / MTI CORPORATION - Split Vertical Tube Furnace with 80mm Quartz Tube & SS Vacuum Flanges - OTF-1200X-80-VT-UL

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