Skip to Main Content

907852 - Miller XMT 650 ArcReach 4-Pack Rack Polarity Reversing 460V

Packaging: 1 per ea
$104,855.21/ea $94,681.00/1 per ea only $94,681.00/eaSave 10%

Usually ships within 3-5 business days

OVERVIEW

High-Output Multi-Operator Welding System

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.

Polarity Reversing Technology

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.

ArcReach® Remote Control

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.

Rugged Construction & Efficiency

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
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

INCLUDED

  • (4) XMT® 650 ArcReach® Power Sources with Polarity Reversing
  • Integrated 4-Pack Rack (Fused for 460 V)
  • ArcConnect™ Control/Motor Cable (9 ft)
  • Lift eyes and heavy-duty skid
  • Power disconnects with dedicated fuses for each welder

APPLICATIONS

  • Structural Steel Fabrication
  • Shipbuilding and Offshore
  • Heavy Equipment Manufacturing
  • Construction and Infrastructure
  • Maintenance and Repair Operations (MRO)
  • Power Generation Plants

FAQ

This specific rack (907852) is fused for 460 V, 3-phase, 60 Hz input power.

No, the Polarity Reversing model of the XMT 650 is not compatible with TIG (GTAW) welding. It is optimized for MIG, Flux-Cored, Stick, and Gouging.

Polarity Reversing allows the operator to switch between processes (like Stick and Gouging) that require different polarities without manually swapping the welding cables at the power source.

ArcReach sends control signals through the welding leads, allowing the operator to adjust voltage and amperage at the wire feeder or remote without needing a separate control cable.

Each XMT 650 power source in the rack is rated for 650 Amps at 44 VDC with a 100% duty cycle.

Yes, the XMT 650 is rated for air carbon arc cutting and gouging with carbons up to 3/8 inch in diameter.

No, wire feeders and other accessories are sold separately. The rack includes the four power sources and the rack structure itself.

The rack features built-in lifting eyes for crane transport and a heavy-duty skid with forklift pockets for ground transport.

CATALOGUE & SPEC SHEETS

Spec Sheet