Miller Maxstar 280 DX TIGRunner Package with Coolmate 1.3 & Cart

Precision Control for the Professional Welder

Experience the ultimate in arc control and portability with the Miller Maxstar 280 DX TIGRunner. Designed for professional welders who demand consistency and performance, this water-cooled package delivers up to 280 amps of DC TIG power in a system that is both powerful and surprisingly mobile. The included Coolmate 1.3 integrates seamlessly via the Cooler Power Supply (CPS) receptacle, ensuring your W-280 torch stays cool during extended high-amperage runs without requiring an extra wall plug. The DX model unlocks advanced waveform controls, including extended pulse ranges up to 500 PPS, giving you the ability to fine-tune heat input for critical welds on thin materials or exotic alloys.

One of the standout features for daily operators is the QuietPulse technology. Traditional pulse welding can create a distracting buzzing noise, but QuietPulse modifies the DC pulse waveshape to create a slower, more fluid transition between background and peak amperage, significantly reducing audible noise and operator fatigue. Additionally, the Pro-Set feature eliminates the guesswork often associated with setting complex TIG parameters. By simply selecting Pro-Set, the machine automatically recalls professional-grade settings for Balance, Frequency, Pulse, and DIG, allowing you to start welding with confidence immediately. For Stick welding, the tailored arc control (DIG) lets you switch arc characteristics to suit specific electrodes, from smooth-running 7018s to penetrating 6010s.

Reliability is built into the core of the Maxstar 280 DX. The Blue Lightning high-frequency arc starter ensures non-contact arc initiation is consistent and reliable, minimizing tungsten contamination. The unit is protected by Wind Tunnel Technology, which routes internal airflow over heat sinks and away from sensitive electronics, preventing dust and debris buildup that can lead to failure. Combined with the Fan-On-Demand system that runs cooling fans only when necessary, this welder runs quieter, cleaner, and more efficiently. Whether you are working in a precision fabrication shop, on a shipboard application, or in the field, the Maxstar 280 DX TIGRunner provides the stability and control needed for flawless X-ray quality welds.