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  • 1200C Two Zone 4“ Rotary CVD Furnace with Automatic Feeding & Receiving System


    Continuous Temp:

    Chamber/Tube size:


    Specific Introduction:
        KJ-1200X-4-R is a two zones rotary tube furnace with automatic feeding & receiving mechanism. The automatic feeder controls the amount and distribution of the materials inside the tube furnace to achieve continuous CVD powder processing under controlled temperature and atmosphere.  The receiving tank will accept fired powder without exposing the material to air.
    This furnace set is designed for calcining inorganic compounds with better uniformity and preparing Li-Ion battery cathode materials with conductive coatings, such as LiFePO3, LiMnNiO3, etc and rotating CVD for Si/C anode materials.

     Furnace Construction
    • Double shell casing with three cooling fans
    • High purity Alumina fibrous insulation for max. energy saving
    • Gear DC motor drives quartz tube with variable speed 0 - 10 RPM
    • The furnace can be tilted up to 30o by electricity.
    • The split cover enables faster cooling and easy operation

    Automatic Feeding Furnace
    • The compact automatic powder feeder is mounted on the tiltable furnace via vacuum-sealed The swivel assembly. (Pic 1)
    • The proper connection ensures uniform feeding rate and the tube rotation undisturbed under controlled atmosphere. (Pic 2-3)
    • Feed rate adjustable by the potentiometer knob, 97cm^3/min max.
    • One stainless steel tank  ( 2 Liter Capacity ) is installed on the other end of the processing tube to gather the fired powder without exposure to air.
    Heating Zone Length
    • Two zones: each zone length 8" (200 mm), total 16" (400 mm) heating zone
    • Constant temperature zone: 200 mm within +/- 1oC if two zones at the same temperature.

    Processing Tube & Sealing Flange
    Standard:  Fused quartz processing tube        
    • One pair of 60mm SS sealing flange with rotatable gas connector needle valves and are included for immediate use
     Max. Working Temperature 1100°C for continuously 1200 °C Max for < 2 hours
    Temperature Controllers
    Two PID digital temperature controller with 30 segment programmable,  +/- 1°C
     Two Omega K type 3mm OD x 6" L with high-temperature tolerance (220°C) connector 
    Tube Rotating Speed  0 - 10 RPM variable
    Furnace Tilt Angle  Left: 0~30° ; Right: 0~15°
    Chamber Pressure  4.5x10-2 torr (<0.1mtorr/s leaking rate with all valves closed to maximize airtightness of the tube chamber)
     Power   Furnace: 4 KW Max
      Feeder: 200W Max
     Voltage   Furnace: 208 - 240V single phase (30 A Breaker required)
      Feeder: 208 - 240V single phase
     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 page)  
    Furnace Compliance、       
    • CE Certified
    • NRTL (UL61010)  or CSA certification is available upon at extra cost.
     Dimension (L × D × H)
    Furnace: 1300mm × 600mm × 1200mm 
    Feeder: 220mm × 220mm × 202mm 
    Feeder Hopper Opening: 180mm x 180mm 
    System dimension : 214cm long x 70cm Wide x 153cm High (lid opened)
     Product Net Weight Furnace: 120Kg
    Feeder: 5Kg
     Shipping Dimension 65" x 40" x 70"
     Shipping Weight 600 lbs
    • In the case that the collected powder needs to be transferred in a sealed container, a customized setup can be purchased along with the furnace. This setup includes the flange with inline swivel, flexible bellows, right angel tube, the container with the butterfly valve and the support frame. The customer can easily remove the container with the butterfly valve for transportation while remaining the sealed condition.
     Application Note
    • For CVD coating, you may choose our multi-channel Gas delivery system.
    • Larger (5 cf) feeder is available for purchase.
    • The tube furnaces with quartz tube are designed for use 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. 
    • Vacuum limit definition for all quartz tube furnaces: * Vacuum pressures may only be safely used up to 1000°C

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