Compact Mid-frequency Heater KSO 630/3-C35 of output series 630 kW

Compact Mid-frequency Heater KSO 630/3-C35 of output series 630 kW

The heater is used for induction heating of steel billets with circular cross-section up to forging temperature. The thyristor frequency converter is built in the heater box thus the built-up space is saved and losses in MF cables are eliminated. The input mechanism enables either fully automatic or manual insertion of cold billets. The manual insertion is used for short billets which, in the automatic mode, are not able to be oriented in the right way.
In the automatic mode the operator puts the pallet with cold billets onto the pallet tippler bed. When the button is pressed the platform of the pallet tippler starts rotating and the billets are gradually poured out into the vibratory container. From it the cold billets are directed (one by one) onto the input conveyor.
In the manual mode the operator puts the billets directly from the palett to the above mentioned input conveyor. It moves the billets to the roller feeder which consists of a lower prismatic pulley and an upper pressure pulley. Both pulleys are driven and their speed can be set up on the communication panel.
The roller feeder inserts the billets into the inductor in a heating cycle.
The inductor is connected with inlet and oulet cooling water by means of quick couplers which enables quick exchange for another type. It is not necessary to discharge the cooling water from the inductor into the sewer system and, thereby, the operating costs of the cooling are reduced. When the main switch is on, the inductor is automatically connected to electricity.
The heated billet is pulled out to the output conveyor by means of the separator. It is designed in a way to separate billets which are partly stuck. Further, the heater is equipped with an output conveyor which includes a stopper. The stopper stops the heated billet which is subsequently removed by a robot and placed to the press.
The temperature of the heated billet is measured by a contactless thermometer UPF V. The output of the heater and the function of the heated billets separator are regulated according to the temperature value.
The induction heater is controlled by Programmable Logic Controller (PLC) made in Siemens. The operation is done from the control box with buttons and the communication panel. The heating parameters (required temperature, output, temperature limits in etc.) are set up on the communication panel. All failures of the heater are displayed in text on this panel.

Basic Technical Parameters  KSO 630/3-C35

Heated Material magnetic steel
Billet Dimensions Ø D  [mm] 35 - 70
Length l [mm] 1,4D - 320
Maximum Process Capacity [kg/h] 1400
Billet Delivery Temperature [°C] max. 1299
Nominal input values (power circuits)
Power Input [kVA] 745
 Input voltage from separating transformer [V] 3 x 525
 Frequency [Hz]  50
Nominal input values (control circuits)  
 Power Input [kVA] 25
 Voltage [V] 3 x 400
 Frequency [Hz]  50
 Nominal output values
 Power [kW]  630
 Frequency [kHz]  1 - 3
 Nominal output voltage [V] 800

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