RJ2 Series Pit Type Tempering Furnace

  •  · Application
    Model RJ2 series pit type temper electric resistance furnaces are batch type. The range of rated power is from 25to 75 kilowatts, and rated temperature is 650. The Furnaces are mainly suitable for temper of ordinary steel parts or heat treatment of other alloy parts.
     
         · Structure Features
    Model RJ2 series pit type temper electric resistance furnace mainly consist of furnace shell, furnace lining, furnace cover, work basket, agitator, elevating machine and heat elements.
    Furnace lining are bricked with diversified refractory material; between furnace shell and furnace lining, filled with insulating material; work basket is welded with stainless steel to load parts which will be heated.
    Agitator fan could promote hot air circulating to ensure good temperature uniformity; the elevator of furnace door have two type; 25kW and 35kW are equipped with a leverage mechanism; 55kW and 75kW are equipped with a hydraulic mechanism. The heating elements of screw type which is made of high resistance alloy wire are mounted on the supporting bricks.
    There are limit switch beside the lifting shaft. This unit is connected with lifting shaft. When the lifting shaft rise to make the furnace cover open, cut down the power supple of the furnace automatically to ensure the operators form danger.
    There are thermocouple hole on the furnace shell, the furnace temperature can be controlled by thermocouple.
    Model RJ2-xx-6(I) and model RJ2-xx-6(II) are equipped with temperature recorder and over temperature protective instrument.
     
         · Performance
    Name
    Unit
    Model
    RJ2-25-6
    RJ2-35-6
    RJ2-55-6
    RJ2-75-6
    Rated Power
    kW
    25
    35
    55
    75
    Rated Voltage
    V
    380
    380
    380
    380
    Number of Phases
     
    2phases
    3
    3
    3
    Rated Temperature
    oC
    650
    650
    650
    650
    Connected type
     
    In series
    Y
    Y,Y
    Size
    Diameter
    mm
    400
    500
    700
    950
    Height
    mm
    500
    650
    900
    1220
    Number of Heating Zones
     
    1
    1
    1
    2
    Unload consumption power
    (650oC)/hour
    kW
    ≤5
    ≤7
    ≤12
    ≤14
    Unload heating up time(20-650oC)
    h
    ≤1.2
    ≤1.2
    ≤2
    ≤2.5
    Uniformity of furnace Temperature
    oC
    10
    10
    10
    10
    Maximal Load capacity
    kg
    150
    250
    400
    1000
    Size
    Length
    mm
    1400
    1500
    1850
    2120
    Width
    mm
    1250
    1342
    1738
    2080
    Height
    mm
    1900
    2100
    2700
    3000
    Weight
    kg
    ~1400
    ~1700
    ~3000
    ~3800
     
         · Equipment Constitution
    1- Furnace shell
    2- Furnace lining 
    3- Heating element 
    4- Furnace cover 
    5- Agitator unit 
    6- Elevating unit 
    7- Work basket 
    8- Limited switch
     

  • Name
    Unit
    Model
    RJ2-25-6
    RJ2-35-6
    RJ2-55-6
    RJ2-75-6
    Rated Power
    kW
    25
    35
    55
    75
    Rated Voltage
    V
    380
    380
    380
    380
    Number of Phases
     
    2phases
    3
    3
    3
    Rated Temperature
    650
    650
    650
    650
    Connected type
     
    In series
    Y
    Y,Y
    Size
    Diameter
    mm
    400
    500
    700
    950
    Height
    mm
    500
    650
    900
    1220
    Number of Heating Zones
     
    1
    1
    1
    2
    Unload consumption power
    (650C℃)/hour
    kW
    ≤5
    ≤7
    ≤12
    ≤14
    Unload heating up time(20-650C)
    h
    ≤1.2
    ≤1.2
    ≤2
    ≤2.5
    Uniformity of furnace Temperature
    10
    10
    10
    10
    Maximal Load capacity
    kg
    150
    250
    400
    1000
    Size
    Length
    mm
    1400
    1500
    1850
    2120
    Width
    mm
    1250
    1342
    1738
    2080
    Height
    mm
    1900
    2100
    2700
    3000
    Weight
    kg
    ~1400
    ~1700
    ~3000
    ~3800
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