907742 - Miller XMT 350 FieldPro 4-Pack Rack Polarity Reversing System

Miller XMT 350 FieldPro 4-Pack Rack: The Pinnacle of Jobsite Efficiency

The Miller XMT 350 FieldPro 4-Pack Rack #907742 is engineered to deliver exceptional arc performance and maximum fleet compatibility in a convenient, multi-operator package. This system includes four XMT 350 FieldPro power sources mounted in a narrow, heavy-duty rack, pre-wired with fuses for 460/575 V operation (though the units themselves are Auto-Line 208-575 V capable). This setup is ideal for rental fleets and large contractors who demand reliability, portability, and advanced process control.

Superior Arc Performance and Control

The XMT 350 FieldPro is a true multi-process workhorse, capable of MIG, Pulsed MIG, Stick, TIG, and Air Carbon Arc Gouging. It supports advanced processes like Regulated Metal Deposition (RMD) and Pulsed MIG when paired with compatible ArcReach feeders, allowing for higher quality welds with less spatter and better puddle control, even in difficult positions. The Adjust While Welding (AWW) feature gives operators the freedom to fine-tune parameters while the arc is on, ensuring optimal bead profile and penetration without stopping the weld.

Intelligent System Features

• Cable Length Compensation (CLC): Long weld cables naturally cause voltage drops that can affect weld quality. CLC ensures that the voltage set by the operator is the actual voltage delivered to the weld, automatically compensating for cable length.
• Auto-Process Select: This safety and quality feature automatically sets the power source to the correct process based on the polarity detected at the accessory, preventing inadvertent errors.
• Control Panel Lock Out: Once an ArcReach accessory is connected, the front panel controls on the power source are locked out. This prevents other workers on the job site from accidentally changing settings, ensuring process integrity.

Rugged Design for the Real World

The rack itself is designed with the realities of the job site in mind. It provides a single electrical connection point for all four welders, simplifying power distribution. The narrow footprint allows the rack to fit through standard doorways and into tight spaces, while the heavy-duty construction protects the welders from impact and debris. With a net weight of 520 lbs and robust lifting points, it is ready for crane or forklift transport. The system utilizes Tweco-style connectors for reliable, high-current connections.

Invest in the Miller XMT 350 FieldPro 4-Pack Rack to maximize uptime, improve welder safety, and deliver superior weld quality on every project.