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1200C Max. Ultrasonic Spray Pyrolysis 3-Zone Furnace for Nano Particles Synthesis - OTF-1200X-III-PGEP

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Item Number: OTF-1200X-III-PGEP


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OTF-1200X-PGEP is a versatile ultrasonic spray furnace system designed for nano, core-shell structured particle synthesis.  The system consists of three major modules: 1.7MHz ultrasonic enhanced bubbler, 1200ºC Max. 3 zone heating tube furnace, and Electrostatic Precipitator.   The processing steps of a particle includes aerosol generation, thermal decomposition, and nanopowder collection. Such a system enables advanced synthetic method that provides control over particle size, morphology, nano/microstructure.

System Structure

  • Aerosol Generation: 1.7 MHz Ultrasonic Enhanced Bubbler can "evaporate" catalyst liquid with literally no heat generated. A stainless steel liquid collector connects inline with the ultrasonic bubble can prevent condensing liquid from streaming into the furnace tube chamber. 
  • Thermal Decomposition:  three-zone ( 900mm length ) tube furnace can be heated up to 1200C maximum to pass the droplets flux across the temperature and atmosphere regulated firing zone, chemical, and physical conversion processes proceed.  
  • Nanopowder Collection: 30KV  electrostatic precipitator (700 ml ) can effectively collect nano-size particles from the carrier gas flow
  • The furnace can be tilted to avoid liquid flow back  atomizing tank
Tube Furnace -
Thermal Decomposition

Voltage & Power
  • Single Phase, 208V~240V AC, 50/60 Hz   (30A breaker required)
  • Max. 7 KW
  Working Temperature
  • 1100oC  continuous
  • 1200 oC  Max. < 1 hours
   Max. Heating / Cooling Rate
< 20oC / min 
Heating Zone & Constant Temperature Zone
  • Three heating zone, 300+ 300 + 300 mm ( 900mm L total)
  • Constant temperature zone:   600 mm with +/- 2oC ( if 3 zone at same )
    Heating Elements
  • Fe-Cr-Al Alloy doped by Mo
Temperature Controller

  • Three digital temperature controllers with 30 programmable segments for precise control of heating rate, cooling rate and dwell time.
  • Built-in over-temperature alarm and protection allow for operation
  • +/- 1 ºC temperature accuracy.
  • RS485 Communication Port.
  • Precision Eurothermo controller is available with +/- 0.1 oC accuracy
Processing Tube
  • One fused quartz tube is included with ID 20.5 x OD 25 mm x L 1400 ( mm)
Sealing Flanges
& Fittings

  • Left side sealing KF flange which connects atomizing bubbler and 1" quartz tube with vacuum gauge.
  • Right side KF flang connects to the electrostatic precipitator. 
Left               Right  
Aerosol Generation

Ultrasonic atomizing bubbler

  • 220VAC, 1.7 MHz Ultrasonic Generator
  •  Ultrasonic power is adjustable with 8 levels
  • 316 Stainless Steel liquid container with a fluoropolymer sealing ring
  • The continuous or timed mode can be set. For timed mode, time can be adjusted from 30 minutes to 180 minutes.
  • A liquid injection pump is equipped with a 60 ml plastic syringe. The speed range for the liquid injection pump is 0.004 ml/min - 70 ml/min
  • A floating flow meter is included to control the carrier gas flow rate within 0-200 SCCM.
  • A mass flow controller (MFC) is optional to precisely control the flow rate.
Nanopowder Collection

High Voltage Supply

  • AC 220V 50/60Hz, 30 W Max. power consumption
  • Digital Voltmeter and Current meter, 30KV, 1.0 mA max.
  • Output voltage and current can be set by using knobs on the front panel and read from the digital display
  • Built-in Arc Protection Circuit
Electrostatic Precipitator

  • KF25 quick clamp and flange enables the quick coupling to the furnace processing tube
  • 1/4" gas outlet built-in
  • Another KF25 port is built-in with the collector to connect the vacuum pump, which is required, but not included
  • PEFE plates are installed on top and bottom to insulate high voltage electrodes
  • Adjustable supports keep the collector leveled with the furnace tub
Net Weight ~150Kg
Dimensions ( click the picture to see details)
Warranty One year limited manufacturer warranty with lifetime support (consumable parts such as furnace liner, processing tubes, and O-rings are not covered by the warranty, please order replacements at related products below).
Laptop, software & WiFi Control (Optional)
  • Brand new laptop with Microsoft Window 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 profile, manage heat-treatment recipe, record and plot data for MTI furnaces.
  • CE Certified
  • NRTL or CSA certification (UL61010) is available upon request at extra 

Application Notes

  • 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.
  •  Please tilt furnace in 10 - 15 degrees to avoid liquid back to atomizing bubbler
  • It is the customer responsibility to achieve the ideal parameter for particle size. Usually, the liquid injection rate and carrier gas flow rate has an important influence on particle size.
  • The SEM picture left is SnO2 particle ( ~ 500 nm - 5 um) generated by the equipment via Stannic chloride solution at 800oC
Operation Video & Instructions        

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