The Weldnex Heavy Duty ACDC TIG Aluminum Welding Machine 400 Amps is a professional-grade, high-capacity welding solution designed for demanding industrial applications. Built with advanced IGBT inverter technology and equipped for AC/DC TIG welding, this machine offers unmatched performance and reliability for welding aluminum, stainless steel, mild steel, copper, and other metals with precision and consistency.

With a powerful 400 Amp output and three-phase input, this heavy-duty TIG welder is engineered to handle extended duty cycles and thick material welding without overheating or compromising weld quality. The AC mode allows smooth, clean aluminum welds, while DC mode enables deep penetration and stable arcs on steel and ferrous metals. This makes it an ideal machine for fabrication shops, shipyards, pressure vessel manufacturing, and infrastructure projects where strength and quality are critical.

The machine comes with full digital controls, offering precision in adjusting current, pulse frequency, balance control, pre-flow and post-flow settings, and more. Welders can fine-tune every aspect of the welding process to match the material type, thickness, and job complexity. With features like 2T/4T operation, pulse welding, and foot pedal compatibility, it delivers maximum flexibility and control in every weld.

Despite its industrial capacity, the unit is housed in a rugged, well-ventilated body with built-in overload protection, fan cooling system, and easy-to-use front panel interface. Its durable design ensures long-term performance even under harsh working conditions.