907552 - Miller Maxstar 280 TIG/Stick Welder, Auto-Line 208-575V

Miller Maxstar 280: Industrial DC TIG and Stick Welding Solution

The Miller Maxstar 280 (907552) represents a significant leap forward in industrial welding technology, combining high-output performance with a compact, portable form factor. Designed for professional fabricators in aerospace, construction, and heavy manufacturing, this DC TIG and Stick power source delivers up to 280 amps of welding current while weighing just 47 pounds. The unit is engineered with Miller's proprietary Auto-Line™ Power Management Technology, which allows for automatic connection to any single-phase or three-phase electrical input ranging from 208V to 575V. This flexibility makes the Maxstar 280 an invaluable asset in facilities with fluctuating power or for field operations where input voltage may vary.

This base model is equipped with essential features that streamline operation and enhance weld quality. The Pro-Set™ feature eliminates guesswork by providing professionally optimized settings for Balance, Frequency, Pulse, and DIG parameters with a simple selection. For Stick welding applications, the machine features Tailored Arc Control (DIG), allowing operators to adjust arc characteristics to suit specific electrodes—from smooth-running 7018s to penetrating 6010s. Additionally, Hot Start™ adaptive control ensures positive arc ignition without sticking, reducing rework and improving efficiency.

Operator comfort and safety are prioritized through the inclusion of QuietPulse™ technology. Activated during DC pulse welding, QuietPulse alters the wave shape to create a smoother transition between background and peak amperage, significantly reducing audible noise. The unit also features a Cooler Power Supply (CPS), an integrated 120-volt dedicated-use receptacle designed to power the Coolmate™ 1.3 water cooler. The power switch on the Maxstar simultaneously activates the receptacle, preventing torch failure due to lack of coolant flow. With its robust design, upgradeable software architecture, and superior arc performance, the Maxstar 280 is built to meet the rigorous demands of modern industry.