Makita inverter welding machine 400A

The 400 Amp output signifies a machine capable of handling significant welding requirements:³

• Industrial Strength: This amperage is typically used for heavy metal fabrication, structural steel work, pipeline welding, shipyard maintenance, and repairing thick sections of machinery and heavy equipment.⁴

   

• Thick Material Capability: A 400A machine can efficiently run large-diameter welding electrodes (like ⁵$5.0\text{ mm}$ or even $6.0\text{ mm}$ for Stick welding), and handle high-deposition MIG and Flux-Cored welding on very thick plates.

   

• Inverter Efficiency (IGBT): Unlike old transformer-based welders, the inverter design (often utilizing IGBT technology) makes the 400A machine much lighter, more compact, and consumes significantly less power for the same output.⁶

   

• Input Power: Most true 400A industrial welders require a Three-Phase (3-Phase) power supply (e.g., $380\text{V}$ or $415\text{V}$) to achieve maximum output and maintain a high duty cycle. Some portable-class machines may claim 400A output on single-phase but often at a much lower duty cycle.
• welding machine