
The Miller XMT® 650 ArcReach® Polarity Reversing 4-Pack Rack (907852) is an industrial-grade multi-operator welding solution designed for the most demanding structural steel, shipbuilding, and construction environments. This pre-assembled system houses four powerful XMT® 650 power sources in a rugged, protective rack, fused specifically for 460 V, 60 Hz input power. Each power source delivers a massive 650 amps at 100% duty cycle, ensuring continuous operation for heavy welding and carbon arc gouging applications.
One of the standout features of this system is its built-in Polarity Reversing capability. In traditional setups, switching between Stick welding (DCEP) and Gouging (DCEN) requires the operator to walk back to the power source and physically swap heavy welding cables. With this system, the polarity change is handled internally. This allows for seamless transitions between processes, significantly reducing downtime and operator fatigue. Note that TIG (GTAW) welding is not available on this specific Polarity Reversing model, as it is optimized for high-deposition MIG, Flux-Cored, and Gouging tasks.
The system features Miller's proprietary ArcReach® technology, which allows the power source to communicate with remote wire feeders and stick remotes through the weld cables themselves. This eliminates the need for separate control cords, which are often the first items to fail on a job site due to damage. Operators can adjust voltage and amperage directly at the weld joint, hundreds of feet away from the rack, ensuring optimal settings without the wasted time of walking back to the machine.
The rack itself is built to withstand harsh field conditions, featuring a heavy-duty skid and lifting eyes for easy transport by crane or forklift. The system includes Cable Length Compensation (CLC™), which automatically adjusts the output voltage to compensate for voltage drop over long cable runs, ensuring the delivered voltage matches the set voltage. Energy-efficient Fan-On-Demand™ technology operates the cooling system only when necessary, reducing noise and preventing the intake of abrasive contaminants.
| Additional Information |
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| Brand:Miller |
| Amperage:650 |
| Voltage:460 V |
| Duty Cycle:100% |
| Weld Process:Multi-Process, MIG (GMAW), Stick (SMAW), Submerged Arc (SAW) |
| Packaging Description:1 per each |
| Process Type:MIG (GMAW), Flux-cored (FCAW), Stick (SMAW), Submerged arc (SAW), Air carbon arc (CAC-A) |
| Input Voltage:460 V |
| Input Phase:3-Phase |
| Output Range:10 - 650 A |
| Carbon Diameter Capacity:3/8 inch |
| Rack Capacity:4 Units |
| Portability:Lift Eyes, Skid Mount |