907718 - Miller Maxstar 800 DC TIG/Stick Inverter Welder

Precision Arc Control for the Professional Welder

For professional welders demanding absolute control over their arc, the Miller Maxstar 800 delivers exceptional performance in both TIG (GTAW) and Stick (SMAW) processes. This machine is designed to handle the toughest jobs, from thin-gauge exotic alloys to heavy-wall pipe and plate. The core of its performance lies in its high-speed DC TIG pulse controls, capable of pulsing up to 5000 pulses per second. This rapid pulsing adds incredible arc stability, significantly reduces heat input to prevent warpage, and allows for increased travel speeds—critical factors when welding heat-sensitive materials or performing high-precision fabrication.

Stick welding performance is equally impressive, featuring Tailored Arc Control (DIG). This allows you to adjust arc characteristics to suit specific applications and electrode types. Whether you need a smooth-running arc for 7018 electrodes or a stiffer, more penetrating arc for 6010 cellulose electrodes, the Maxstar 800 adapts to your technique. The Hot Start adaptive control ensures positive arc starts every time without sticking, eliminating common frustrations during ignition. For TIG starts, the Blue Lightning High-Frequency Arc Starter provides consistent, non-contact starts, offering greater reliability than traditional HF systems and reducing the risk of tungsten contamination.

The user interface is designed for the welder's convenience. The program memory feature allows you to save your favorite settings for repeat jobs, while the meter calibration function ensures your readouts are always accurate for certified work. Capable of Air Carbon Arc (CAC-A) gouging with carbons up to 3/8 inch, this machine is a versatile workhorse. The Maxstar 800 gives you the power to weld up to 1-inch thick steel with the finesse required for intricate aerospace components, all backed by Miller's True Blue 3-year warranty.