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1200oC Split Tube Furnace with Hinged Type Vacuum Flanges & 4" Quartz Tube - OTF-1200X-100-HNG

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OTF-1200X-100-HNG series furnaces are split-able Tube furnaces with 100mm O.D quartz tube with a pair of Hinged Type Vacuum Flanges and valve/gauge to make sample loading easy. SPECIFICATIONS
Part No. OTF-1200X-4-HNG
Fused Quartz Tube Size O.D: 101 x I.D: 92 x Length: 1000 mm
Furnace Structure
  • Double-layer steel casing with air cooling to keep furnace surface temperature lower than 60°C.  
  • High purity fibrous alumina insulation for Max. energy saving.
  • The special refractory coating on the inner and heating element to increase furnace life.
  • Two Quartz tube blocks are included for blocking heat radiation from the inside the tube. ( blocks must be fully inserted into the furnace chamber before heating)
                   click here to choose a crucible
Input Voltage 208 - 240VAC SINGLE PHASE, 50/60Hz
Power 2.5KW
Heating Elements Fe-Cr-Al Alloy doped by Mo
Heating Temperature
  • Max. heating temperature: 1200°C <  1 hour ( inert gas must be filled inside the tube to resist deformation)
  • Continuously heating temperature: 1100°C
  • Heating rate: 20°C /min Max.
Heating Zone Total heating zone length: 440mm
Constant temperature zone: 150mm (+/-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 protection.
  • Over-temperature protection and alarm allow for operation without attendant(s).
  • +/- 1 ºC temperature accuracy.
  • RS485 Communications Port.


Advanced Temperature Control (Optional)
  • MTS02-Y Temperature control software kit (for YD518P series controllers) + 15" laptop package is available at the options bar. Click for detailed information about the MTS02-Y software kit. 
  • You may upgrade the temperature controller to the Eurotherm 3504 Temperature Controller which is fully compatible with LabVIEW. This package includes a Eurotherm 3504 programmer, a communication cable (RS485 - USB), and a software CD. Click the pic below to view the full spec of the Eurotherm 3504 temperature controller.
Hinged Type Vacuum Flange
& Fitting
  • Two hinged type stainless steel flanges with needle valves. 1/4" pipe adapters are installed in two ends
  • The Righ flange has a needle valve with 1/4" pipe connector.
  • The left flange has a needle valve, KF-25 Vacuum port, and vac digital vacuum gauge.
    1/4" feedthrough is included on the right flange
    Water cold hinged type flange is available upon request at extra cost
Vacuum Level
  • 10^-2 torr by the mechanical vacuum pump.10^-5 Torr by a molecular pump.
  • Leak rate < 5 mtorr / min.
You may order a vacuum pump and accessories to build a complete vacuum furnace system as the pictures below, and please click Furnace Accessories to order these parts.


Product Dimensions Furnace: 590×380×520mm
Net Weight 40Kg
Shipping Dimensions 45 x 45 x 35 inch
Shipping Weight 300lbs
Warranty One year limited warranty
Consumable parts such as processing tubes, o-rings, and heating elements are not covered by the warranty
Please order the replacement at related products below
Laptop, software & WiFi Control(Optional)
  • Brand new laptop with Microsoft Window 10 and Microsoft Office 2013 (30 days free trial)
  • Labview Based Temperature Control System (EQ-MTS01) enables users to edit temperature profiles, manage heat-treatment recipes, record and plot data for MTI furnaces.
  • A wireless remote control provides up to 300 meters of operating range.
  • CE Certified
  • NRTL or CSA certification is available at extra cost.
Application Notes
 Click here to learn the installation of a gas regulator
  • The tube furnaces  are designed for using under vacuum and low pressure < 0.2 bars / 3 psi / 0.02 MPa
  • 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.
  • Vacuum pressures may only be safely used up to 1000°C 
  • The flow rate for gasses should be limited to<200 SCCM  for reducing thermal shocks to the tube
Operation Instructions         

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