The term MIG-400 Inverter Welding Machine refers to a professional-grade, heavy-duty welding unit with a maximum output of 400 Amperes.
This class of machine is built for industrial applications, major fabrication, structural steel work, and continuous welding on thick materials. The “Inverter” technology (specifically IGBT) makes it lighter, more energy-efficient, and provides a much more stable and controlled arc than older transformer-based welders.

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