907479001 - Miller XMT 450 MPa Multiprocess Welder 230/460V

Heavy-Duty Industrial Multiprocess Performance

The Miller XMT 450 MPa 230/460V (907479001) represents the pinnacle of heavy industrial welding technology, designed to meet the rigorous demands of construction, shipbuilding, and heavy fabrication. This multiprocess power source combines brute strength with refined arc control, offering capabilities for MIG (GMAW), Pulsed MIG (GMAW-P), Stick (SMAW), DC TIG (GTAW), Flux Cored (FCAW), and Air Carbon Arc Cutting and Gouging (CAC-A). With a substantial 450-amp output, it provides the power necessary for thick materials while maintaining the precision required for complex alloys.

Advanced Pulsed MIG Capabilities

What sets the MPa model apart is its integrated intelligence for Pulsed MIG welding. The unit features built-in pulse programs specifically tuned for standard steels, high-strength steels, and aluminum. When paired with compatible Miller MPa wire feeders, the system delivers Synergic Pulsed MIG performance. This allows operators to adjust wire feed speed while the machine automatically optimizes pulse parameters, ensuring a consistent bead profile and reducing setup time. The proprietary SharpArc® technology further enhances control, allowing welders to fine-tune the arc cone shape and puddle fluidity to match specific joint configurations and gas mixtures.

Reliability and Auxiliary Power

Engineered for harsh environments, the XMT 450 MPa utilizes Miller's Wind Tunnel Technology™. This internal design channels airflow over heat-generating components while protecting sensitive electronics from dirt, dust, and debris, significantly extending the machine's lifespan. The Fan-On-Demand™ cooling system operates only when necessary, reducing noise and energy consumption. Additionally, this model includes a 115 VAC, 10-amp auxiliary power receptacle, providing convenient on-board power for water cooling systems or hand tools, eliminating the need for extra extension cords on the job site.

Precision Arc Control

For Stick and TIG applications, the XMT 450 MPa excels with features like Adaptive Hot Start™, which prevents electrode sticking, and Lift-Arc™ for contamination-free TIG starts without high frequency. The inverter arc control technology ensures superior puddle control for difficult electrodes like 6010, making it a versatile choice for pipe welding and structural applications.