Greater Detroit – (877) 446-4352              Greater Chicago –  (877) 446-4352              Greater St. Louis – (877) 446-4352      

Midland Tool

Miller XMT® 350 FieldPro™ Welder w/ ArcReach Technology, Tweco®

Item # 907730 Category

ArcReach welding technology minimizes the non-value-added time spent walking to and from the power source—and maximizes arc-on time, weld quality and job site safety.  When operators have complete control at the feeder or remote—even hundreds of feet away from the power source—it minimizes downtime and maximizes productivity, while improving operator safety and delivers high quality welds.

  • Weld operators can Adjust While Welding (AWW™) to change weld parameters while the arc is on.
  • 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.
  • Return to a previous weld process faster because the power source is restored to its
    previous settings once the ArcReach accessory is removed.
  • 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.
  • 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.
  • 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.
  • No more expenses related to maintaining or replacing easily damaged control cords
    because the weld cables are used to communicate weld parameters between the wire feeder and power source.
  • 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.



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


Cross Country Pipeline
Education / Training
Heavy Equipment Manufacturing
Maintenance and Repair
Mechanical Contracting
Pipe Fabrication / Construction
Pressure Vessel
Work / Service Trucks

Weldable Metals

Specialty Metals
Stainless Steel

Carbon Diameter


Input Phase


Input Power

208-575 V

Voltage Range in CV Mode

1-Phase: 10-38 V
3-Phase: 10-38 V

Rated Output

1-Phase: 300 A at 32 VDC
60% Duty Cycle
3-Phase: 350 A at 34 VDC
60% Duty Cycle

Amperage Range in CC Mode

1-Phase: 5-425 A
3-Phase: 5-425 A

Amperage Input @ Rated Output

1-Phase: 60.8 A at 208 V
54.6 A at 230 V
29.7 A at 400 V
24.5 A at 460 V
19.9 A at 575 V
11.7 A at KVA
11.2 A at KW
3-Phase: 40.4 A at 208 V
36.1 A at 230 V
20.6 A at 400 V
17.8 A at 460 V
14.1 A at 575 V
14.2 A at KVA
13.6 A at KW

Max Open Circuit Voltage

1-Phase: 75 VDC
3-Phase: 75 VDC

Input Hz

50 / 60 Hz

Current Type


Weld Output



17" H x 12.5" W x 24" D


93 lbs