XMT® 304 and 350 Multioperator Welding Racks | MillerWelds

XMT® 350 FieldPro™ 6-Pack Rack fused 460/575 V Tweco

Conveniently houses multiple power sources, an ideal system for onsite applications including construction and shipbuilding.

6-Pack Rack

4-Pack Rack

6-Pack, Polarity Reversing

4-Pack, Polarity Reversing

XMT 450 4-Pack Rack

XMT 650 4-Pack Rack

XMT 650 Polarity Reversing 4-Pack Rack


More Jobsite Productivity and Efficiency
ArcReach® capabilities eliminate the time spent tracing weld cables hundreds of feet back to the power source because weld operators can make adjustments at the ArcReach wire feeder or remote.
Cable Length Compensation
Cable Length Compensation (CLC™) ensures that the voltage a weld operator sets is the voltage they get by automatically adjusting voltage based on weld cable length, even hundreds of feet away from the power source.
Maximize weld quality, reduce training time
  • Common weld failures can be minimized with stick stops that are specifically programmed to eliminate arc strikes outside of the heat-affected zone.
  • Regulated Metal Deposition (RMD®) and pulsed MIG are fully supported, enabling operators to use these advanced processes in the field for faster, more-efficient welds.
Increased Uptime
XMT 350 FieldPro welders and ArcReach feeders and remotes have been extensively field-proven and deliver the performance you need with ruggedly constructed internal components and Wind Tunnel Technology™.
Improved Jobsite Safety
The chances of slip, trip or fall injuries are decreased because ArcReach technology allows weld operators to make parameter changes at the wire feeder/remote instead of having to travel through multistory and cluttered jobsites back to the power source.
Maximum Fleet Compatibility
Maximize fleet compatibility and get the benefits of ArcReach when you pair XMT 350 FieldPro welders and ArcReach feeders with other ArcReach compatible products.
Adjust While Welding
Weld operators can Adjust While Welding (AWW™) to change weld parameters while the arc is on.
Control Panel Lock Out
Inadvertent parameter changes by other jobsite workers can be easily avoided because connecting an ArcReach accessory from the power source automatically locks out the power source’s panel controls.
Exceptional Arc Performance
XMT 350 FieldPro systems maximize weld quality, reduce training time and minimize weld defects even while using weld cables that are hundreds of feet long.
Auto-Process Select
Decrease the chance of an incorrect weld process being used because Auto-Process Select™ automatically sets the power source to the correct weld process based on the polarity applied to the weld accessory.



Air Carbon Arc Cutting and Gouging (CAC-A)
Flux Cored (FCAW)
Stick (SMAW)

General Specifications

Title XMT® 350 FieldPro™ 6-Pack Rack fused 460/575 V Tweco
Connector Style Tweco
Weldable Metals Specialty Metals
Stainless Steel
Input Voltage 460/480 V
575 V
Rated Carbon Diameter 1/8 in (3.2 mm)
Input Phase 3-Phase
Input Hz 50/60 Hz
Current Type DC
Max Open Circuit Voltage 75 VDC
Rack Capacity 6
Weld Output CC / CV
Net Width 43 in
Net Height 34 in
Net Length 59.375 in
Net Weight 759 lbs
Warranty 3 Years
Miller's True Blue Warranty