The Weldnex Heavy Duty TIG Welding Machine 400 Amps is a robust and high-capacity welding solution, engineered for demanding industrial applications requiring precision, durability, and versatility. Designed with advanced Dual Module IGBT inverter technology, this machine ensures powerful output, consistent arc stability, and energy-efficient performance—making it the ideal choice for fabrication shops, manufacturing plants, and heavy maintenance operations.

With dual functionality for both TIG and ARC (MMA) welding, this machine offers unmatched flexibility in handling a wide range of materials, including stainless steel, mild steel, copper, and non-ferrous metals. The 400 Amps high output enables deep penetration and superior weld quality even on thick metal sheets, ensuring smooth operation for both fine precision tasks and heavy-duty welding jobs.

Built for continuous operation, the machine features a high duty cycle, ensuring reliable performance during long working hours. The digital control interface allows precise adjustments for welding parameters such as current, arc force, pre-flow, post-flow, and pulse settings, empowering professionals with complete control over the weld quality.

Engineered with a rugged, industrial-grade chassis and equipped with thermal overload, over-voltage, and under-voltage protections, the Weldnex TIG 400 is built to withstand harsh working environments while maximizing operational safety and equipment longevity.