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MIG Welding Machine

GMAW or MIG Welding Machine

The technically correct term for this type of welding is Gas Metal Arc Welding or GMAW. So the shielding gas may or may not be Carbon Dioxide. However due to low cost and easy availability of Carbon Dioxide, it is used as the shielding gas in majority of Mig welding application. This is why it is sometimes known as CO2 welding. This process is also known as MIG or MAG welding. MIG stands for Metal Inert Gas and MAG for Metal Active Gas. The power source required for this type of welding must capable of delivering current at a constant voltage even if the arc length or current changes. In some special cases GMAW can also be done with constant current or AC power sources. However the machines given below are all of DC constant voltage type.
  Name Description
Diode based MIG Welding Machine

Top features:

  • Rugged Design suitable for both outdoor and indoor usage.
  • Almost maintenance free operation.
  • Good first machine to introduce MIG welding to the work shop as it can take a lot of initial mishandling.
  • Four Roll wire feeder for steady feeding of the MIG wire.
Thyristorised MIG Welding Machine

Top features:

  • Accurate control of Voltage and Current for improved welding.
  • Six phase six thyristor design for spatter free welding.
  • High speed free wheeling diode is incorporated for smooth operation at low currents.
  • Four Roll wire feeder for steady feeding of the MIG wire.
Chopper Based Inverter MIG Welding Machine

Top Features:

  • Accurate control of Voltage and Current for improved welding
  • Lower power consumption compared to Diode based MIG welding machine
  • MOSFET based design achieves a high frequency of chopping. This causes a smooth dc current with minimal spatter
  • Four Roll wire feeder for steady feeding of the MIG wire.
IGBT Based Inverter MIG Welding Machine

Top Features:

  • Accurate control of Voltage and Current.
  • Lowest power consumption in it’s amperage class.
  • IGBT based design allows continuous operation in an industrial environment.
  • Four Roll wire feeder for continuous for feeding for MIG wire.