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1-2" 1250C Compact Split Tube Furnace with 8" heating Zone & Programmable Controller - OTF-1200X-S-NT-LD

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OTF-1200X-S-NT  is a CE certified/UL ready compact and energy-saving (1200W power consumption) split tube furnace with a max. the working temperature of 1250°C. The built-in precision temperature controller can provide up to 30 segments of heating and cooling steps with +/- 1 °C accuracy. The furnace does not include a working tube. You may order a 2" quartz tube, vacuum flange and refractory ceramic blocks based on your application needs.
Furnace Structure
  • Double-layer steel structure with air cooling.
  • High purity Al2O3 fibrous insulation with Max. energy saving.
  • Split cover for easy tube replacement.
  • Adopts 1" or 2" O.D processing tubes.
1.2 KW
110VAC (Single Phase 220VAC can be selected in options bar)
Max. Temperature
1250°C (<1 hour)
Continuous Temperature v.s. Processing Tube
  • 1200°C (continuous) with Mullite tube 1-2 " dia
  • 1100°C (continuous) with Quartz tube 1- 2" dia
  • Please click Pic below to choose processing tube (Length > 450 mm)
  • If using a 25mm O.D tube, please also get an adaptor
Quartz Tubes    Quartz tube         Mullite Tubes  Mullite tube           Stainless Steel Sealing Flange Assembly for 1 Vacuum Flange
Max. Heating Rate
<= 10 °C/min
Heating Zone length
8" (200mm), single zone. The following picture shows the temp. distribution across the heating zone, please click to enlarge.
Constant Temp. Zone
2.3" (60mm)  (+/-1°C) @ 900 °C 
Temperature Controller
  • PID automatic control via solid state relay with 30 steps programmable.
  • Built-in Over Temperature and Thermocouple Failure Protection
Temperature Accuracy
+/- 1°C
Heating Element
Fe-Cr-Al Alloy doped by Mo
With lid closed: 340mm×300mm×400mm (W x L x H)
With lid open: 340mm×300mm×560mm (W x L x H)
Net Weight
18 Kg
Shipping  Package  Size
40 x 28 x 33 inches (W x L x H)
Shipping Weight
100 lbs
One year limited warranty with lifetime support 
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 the user to edit temperature profiles, manage heat-treatment recipe, 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
  • Optional:  you may choose Eurotherrm 3000 controller with software to achieve +/-0.1ºC temperature accuracy
  •      Eurotherm 3000 Series optional

  • CE Certified and UL 6010 standard ready
  • UL / MET / CSA Certification is available upon request, additional charges will apply
Application Notes & Warning
  • Tube furnaces with quartz tubes are designed for using under vacuum and low pressure < 0.2 bars / 3 psi / 0.02 MPa. Vacuum pressures may only be safely used up to 1000°CThe flow rate for gases should be limited to<200 SCCM (or 200ml/min) for reducing thermal shocks to the 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.
  • How to set up a ceramic tube and vacuum flange for MTI tube furnaces.
  • For safety, you may consider putting the small tube furnace inside a fume hood. ( click picture left to see )
Operation Instructions       

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