Solid State High Frequency Welder
QGT-1 series solid state H.F welder is specially designed for straight seam welding. It adopts high power components of US IR IRFP460 MOSFET and Germany IXYS Company DSEI60-06A rapid recovery diode. The high power capacitor C and inductor coil L compose current-mode parallel upper-voltage resonance circuit, which doesn’t need output transformer. Thus, it not only improves the efficiency, but also increases the reliability of the welder.
The solid state H.F welder has such distinct features as energy-saving, effective welding, simple structure, easy maintenance, low failure rate, low maintenance cost etc.
DC power supply
DC Power Unit includes rectify, flight wave and control parts.
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Power factor 0,85
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Power distribution capacity 307kVA
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Input voltage 380V / 50 Hz
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Acceptable voltage deviation 6% linear
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Ripple coefficient <1 %
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PLC type SIEMENS
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Dimensions 115cm x 95cm x 225cm
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Weight 620 kg
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Working temperature -5℃bis +50℃
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Operating Humidity ≤85 %
Inverter Output Unit
The inverter part is made up by parallel MOSFET power transistor modules, which is easy for maintainance.
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Rated output power 200KW
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Output frequency 400 kHz
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Dimensions (without output leads) 179cm x 90cm x 106cm
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Weight (including axis table) 620 Kg
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Efficiency >85 %
Water-water Heat Exchange Unit
Composition：Plate heat exchanger, water tank, pump and electrical control part.
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Distilled water Temperature ＜35℃
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Cooling water pressure 0,15–0,3 MPa
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Cooling water flow >11,7m³/h
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Cooling system Übertemperaturschutz für Kühler
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Resonance method Serie – parallel Komplexe Resonanz
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Dimensions 130 cm x 125 cm x 140 cm (H)
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Weight 465 kg
Central Control Unit
Installed with LCD, power and speed adjust module, the pipe line can be completely controlled by the central control unit.
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Dimensions 105 cm x 95 cm x 135 cm (H)
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Weight 250 Kg
Rectifier isolation transformer
It is the input rectifier part of the equipment. It reduces the input voltage from 415V to 200V to ensure stable power supply, at the same time, to insulate the power grid.
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Dimensions 130cm x 80cm x 130cm(H)
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Weight 940 kg