TIG-315P/TIG-400P/TIG-500P TIG WELDER DC PULSE TIG

The KeyGree TIG-315P/400P/500P series offers powerful and versatile TIG/Stick (MMA) welding via robust DC inverter technology. Engineered for consistent, high-quality welds on mild steel, stainless steel, and aluminum, they feature intuitive digital control with a large LCD for precise parameter adjustments like gas timing, slope, and pulse frequency (1-90Hz). Designed for reliability with comprehensive protection and multi-layer PCB insulation, the models provide peak TIG currents of 315A, 400A, or 500A (10-500A adj.) plus MMA capability – all at a 60% duty cycle – maximizing welding performance for diverse applications.​

	2-IN-1 VERSATILITY
	Seamlessly switch between ​​TIG​​ and ​​Stick (MMA)​​ welding for unmatched flexibility.
	PULSE MODE
	Achieve cleaner, spatter-free welds (1-90Hz adjustable) on thin metals and alloys.
	2T/4T MODE
	KeyGree's 2T/4T trigger modes leverage adjustable pre-gas, slope up/down, and gas delay for precision starts/stops: 2T simplifies short welds (press-hold initiates pre-gas → slope up → full current; release triggers slope down → gas delay), while 4T automates long runs (first press begins pre-gas → slope up → sustained current; second press activates slope down → gas delay → shutdown) – both ensuring contamination-free arcs through digital parameter control.​
	HIGH PERFORMANCE
	60% duty cycle at max current ensures relentless productivity.