907716 - Miller Maxstar 400 DC TIG/Stick Welder Package

Precision DC TIG Welding with Advanced Control

Unlock superior arc performance with the Miller Maxstar 400, a top-tier DC TIG and Stick power source tailored for professional welders who demand exact control over their weld puddle. This machine is packed with advanced waveform technology, including QuietPulse™, which modifies the DC pulse waveshape to create a smoother transition between background and peak amperage. The result is a significantly quieter arc that reduces operator fatigue without sacrificing puddle agitation or heat input control. For critical applications requiring high travel speeds, the high-speed DC TIG pulse controls allow for frequencies up to 5000 pulses per second, ensuring tight arc cones and reduced heat affected zones.

Reliability in arc starting is provided by the Blue Lightning™ High Frequency Arc Starter, which offers consistent non-contact starts tailored to your tungsten diameter and application. The Maxstar 400 also features a robust Stick welding mode with tailored arc control (DIG), allowing you to adjust arc characteristics from smooth-running 7018s to stiff, penetrating 6010s. The integrated Cooler Power Supply (CPS) simplifies your setup by providing a dedicated 120V receptacle for the Coolmate™ 3.5, ensuring your torch cooling system is active only when the machine is on. With 9 independent program memories, you can save and recall your favorite parameters instantly, ensuring repeatability across different jobs.

Designed for longevity and ease of maintenance, the Maxstar 400 includes Cooler-On-Demand™ technology, which runs the auxiliary cooling system only when necessary. This reduces airborne contaminants pulled through the cooler and lowers overall energy consumption. The front panel memory card port ensures your investment is future-proof, allowing for easy software upgrades and feature expansions. Whether you are welding exotic alloys in aerospace or fabricating heavy pressure vessels, the Maxstar 400 delivers the consistency and power required for code-quality welds.