Dual Module IGBT 300AMP Inverter Portable ARC/MMA 400A Welding Machine

The MMA series arc welding machine is not only portable but also save energy It introduced the ad-vanced IGBT/MOS(insulated gate bipolar transisor) and recover quic kly diode as the main parts of controlling and delivering. IGBT/MOS can change 50Hz or 60Hz to 20 KHIz. Because the electric current can regulate, the arc electric current obtain to weld craft adaptability goodly. Had superheat, superpress, protection function. The technique of MMA inverter welder compared with the traditional technique, its advantage lies in saving energy, more lighter, the structure more better. Fit for decorate outdoors and fieldwork, mainly weld a low carbon steel, stainless steel, metal alloy steel, iron casting etc. Because the adoption controls appropriate of lea d arc electric circuit, it can weld well.

ARC-ECONOMIC are manual inverter welder series which is made by international most advantaged invert technical. Inverter MMA welding power supply is inverter arcwelding ma-chine which is sprung up in 1980s in international market 50Hz/60Hz frequency is inverted to high fre-quency (frequency is over 100KHz) by MOSFET, thcn step down voltage and rectificate current in-verter are welding power supply generates powerful DC welding curent through PWM technical. Because inverter technical of switch power is used, dimensions and weight of welding machine has re-duced substantially and efficiency has increased 30%. Stabilizing. reliability, lightness, save-en ergy and no electromagnetic noise are characleristics of weldine machine series . Inverter welding machine is developed that is given praise of revolution of welding field by specialist

The welding machine obtains the 220V power frequency alternating current through switch sw101, af-ter the inductance coil filter for the single plane rectification bridge MDQ3504*2 rectification, and has the electric capacity C1-C4 filter to turn the direct current, by way of the IGBT/MOS composition bridge type invertor inversion existinp agreement is the 20KHZ altemating current, passing through the inter-mediate frequency Iransformer TI live pressure, and restores the diode DK 1-DK6 rectification quickly, at last filters by the output reactor L101 and outputs steadily the direct-current power supply for the welding.