907682 - Miller Maxstar 210 STR DC Stick/TIG Inverter Welder

Technical Overview of the Miller Maxstar 210 STR

The Miller Maxstar 210 STR (SKU: 907682) is a high-performance DC inverter welding power source designed for Stick (SMAW) and Lift-Arc TIG (GTAW) applications. Engineered for industrial versatility, this unit features Miller's proprietary Auto-Line Power Management Technology, which allows for automatic connection to any single-phase or three-phase input voltage ranging from 120 to 480 VAC (50/60 Hz) without the need for manual linking or tools. This capability ensures consistent welding performance even in environments with dirty or unreliable power.

The machine delivers a maximum output of 210 Amps, capable of welding materials from 0.025 inches up to 1/4 inch thick. It supports electrode diameters of 1/8 inch and 5/32 inch, including E6010 and E7018 classifications. Key technical features include QuietPulse technology, which modifies the DC pulse waveshape to create a slower, more fluid transition between background and peak amperage, significantly reducing audible noise. The unit also incorporates Pro-Set technology, offering preset controls for Balance, Frequency, Pulse, and DIG parameters to eliminate setup guesswork.

Durability and reliability are ensured through Wind Tunnel Technology, which routes air flow to protect internal electrical components from airborne contaminants, and Fan-On-Demand, which activates the cooling system only when necessary. This reduces noise, energy consumption, and contaminant intake. The Maxstar 210 STR weighs approximately 36 lbs (16.3 kg) and includes a front panel memory card data port for easy software updates and feature expansion. Safety features include Stick-Stuck, which turns off output if the electrode adheres to the workpiece, and a Sleep Timer to conserve power during inactivity.