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1600°C Split Tube Furnace w/ Vac. Flanges & Valves, Optional 60 or 80mm Alumina Tube - OTF-1600X-UL

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Computerized Tool
OTF-1600X-I series furnace is UL/TUV standard split-able alumina tube furnaces with Kanthal GLOBAR SG 1650 grade SiC Heating Elements. The furnace can install with 60 or 80mm O.D high-quality alumina tubes along with a pair of smart stainless steel vacuum sealing flanges that can take either a valve/gauge which allows for heating samples under vacuum or flowing gas conditions up to 1600°C. The precision temperature controller can provide 30 segments of heating and cooling steps with +/- 1°C accuracy.  

 Alumina Tube
 Alumina Tubes
(click underlined for specs)
O.D: 80 x I.D:74 mm x L 1000 mm
(click underlined for specs)
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 furnace inner and heating element to increase furnace life.
  • Two fibrous ceramic tube blocks are included for blocking heat radiation from the inside tube. (Ceramic blocks must be fully inserted into the furnace chamber before heating)
Input Voltage
 208 - 240VAC SINGLE PHASE, 50/60Hz
 6.0 KW
Heating Temperatures
  • Max. Heating temperature: 1600°C
  • Continuously heating temperature: 1550°C ( without Vacuum)
  • Continuously heating temperature: 1500°C ( under vacuum)
  • Heating rate: 10°C /min Max.
Heating Zone
  • Total heating zone length: 390mm
  • Constant temperature zone: 160mm (+/-1°C)
Heating Elements

Temperature Controller
  • 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
Temperature controller (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 package. 
  • You may upgrade the temperature controller to the Eurotherm 3504 Temperature Controller which is entirely 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 3004 temperature controller.
Vacuum Sealing
  • Two stainless steel flanges with the vacuum gauge and valves. 1/4" pipe and KF25 adapters are installed in two ends respectively.
  • For a fast & better vacuum, suggest you use stainless steel pipe ( click to order at extra cost ), as well as a digital vacuum gauge. 
  •  Two pairs of fibrous ceramic tube blocks are included for blocking heat radiation from the inside tube. (Ceramic blocks must be fully inserted into the furnace chamber before heating)
    Vacuum Levels
    • 10^-2 torr by the mechanical vacuum pump.
    • 10^-5 torr by a molecular pump.
    • Leak rate < 5 mtorr / min.
     The vacuum pump is not included; please order separately at the related products section
    Power Cable & Plug
    • 10 feet long 10-3 AWG heavy duty UL approved power cable is included. Extra length cable can be ordered by clicking picture left
    • The plug is not included. Browse our catalog for compatible plugs or obtain one from a local hardware store.
    Product Dimensions
          610 L ×470 W × 755H,  mm
    Net Weight
    30 Kg
    Shipping Dimensions
    45 x 45 x 35 inch
    Shipping Weight
    250 0lbs
    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).
    Laptop, software & WiFi Control (Optional)
    • Brand new laptop with Microsoft Windows 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.
    • The above features are available upon request at an extra cost (up to $1,000). 
    • CE Certified
    • NRTLor CSA certification is available at an extra cost. 
    Application Notes
    • Please click here to see our typical temperature profile calibration result at various temperatures.
    • Temperature calibration is necessary for obtaining accurate temperature inside a tube furnace. Please, click here to review the details.

    Click here to learn more about the installation of a gas regulator

    • The tube furnaces with alumina tube are designed for using under vacuum and low pressure < 0.02 MPa 
    • Never use graphite crucible an alumina tube.
    • Attention: A two-stage pressure regulator must be installed on a gas cylinder to limit the-the pressure to below 3 PSI for safe operation. Click here to learn the installation of a gas regulator. 
    • Never heat the furnace while the gas release valve is closed and a positive pressure condition exists within the furnace chamber. The pressure gauge must be used to closely monitor the chamber condition at all times during the heating process; please open the gas release valve immediately once the chamber pressure has reached over 3 PSI to prevent unforeseeable damages.
    • .The flow rate for gases should be limited to < 200 SCCM ( or 200ml/min )
    •  Vacuum pressures may only be safely used up to 1500°C
    Operation Instructions  ( Heating element installation )     


    OTF-1600X-60 OTF-1600X-80
    Alumina Foam Block for tube furnace 1 pair

    EQ-F-T-block-52 EQ-F-T-block-70
    Vacuum flanges
    1 pair

    EQ-FL-60 EQ-FL-80
    3 Alumina tubing 1 unit    Alumina Tubes EQ-TA-60D-M1000 EQ-TA-80D-M1000

    Part No.
    Quick Link
    KF-D25 series Vacuum Suite(vacuum pump, vacuum ball valve, vacuum bellows, quick clamps, KF adapter) Also you may buy individually.
    Compact Digital Vacuum Gauge & Controller with Power Supply (Up to 10-4 Torr)
    High vacuum station (Mechanical pump + turbo molecular pump.)
    Gas mix station (Float flow meter / Mass flow meter) (2, 3, 4channels selectable)
    Compact Flow Meter (float flow meter / mass flow meter)
    Quartz tube block /heat insulating tube block
    Quartz Boats /crucible /container /sample holder
    Heavy Duty Mobile Car for All MTI Tube and Box Furnaces
    Vacuum flange fittings and assembly

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