XMT® 350 FieldPro™ with Polarity Reversing


XMT® 350 FieldPro™ with Polarity Reversing Systems have industry leading technology with no need to manually swap polarity or cables/hoses between processes.

XMT® 350 FieldPro™ with Polarity Reversing Systems have industry leading technology with no need to manually swap polarity or cables/hoses between processes.

Cable Length Compensation (CLC™)

ensures voltage an operator sets is voltage they get. CLC automatically adjusts voltage based on weld cable length, even hundreds of feet away from the power source.

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.
*Available with ArcReach Smart Feeder only.

Maximize fleet compatibility

and get the benefits of ArcReach when you pair XMT 350 FieldPro welders and ArcReach feeders with other ArcReach compatible products.

Weld operators can Adjust While Welding (AWW™)

to change weld parameters while the arc is on.

Eliminate expenses related to main taining or replacing easily damaged control cords

Weld cables are used to communicate weld parameters between the  wire feeder and power source.

Decrease trip or fall injuries

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.

Auto-Line Technology

For portability and reliability, Auto-Line allows for any input voltage hookup (230–575 V, three-phase) with no manual linking, providing convenience in any job setting. Ideal solution for dirty or unreliable input power.


automatically establishes an exclusive communication between the power source and the wire feeder, using the existing weld cables upon system power up.

Wind Tunnel Technology.™

Internal air flow that protects electrical components and PC boards from dirt, dust and debris… greatly improving reliability.

Process selector switch

reduces the number of control setup combinations without reducing any features.

Infinite arc control

available in the stick and wire modes for easier fine-tuning of tough-to-weld materials and out-of-position applications

True multiprocess system

provides conventional stick, TIG, FCAW, and MIG welding as well as the advanced technologies of RMD and pulse.

Fleet compatibility

ArcReach-equipped power sources and wire feeders work with non-ArcReach equipment; however, the complete ArcReach benefit is only realized with the ArcReach system.

What’s included

Pulsed MIG (GMAW-P)*
Stick (SMAW)
Flux-cored (FCAW)
Air carbon arc cutting and gouging (CAC-A)


General specification
Title XMT® 350 FieldPro™
Industries Interests Construction
Power generation plants
Rental fleets
Material Thickness
Weldable Metals Thin to thick,
all materials,
0,8-1.6 mm solid,
cored wires
Input Voltage 230 –575 V
Input Phase 3-phase power
Input Hz 50 Hz
Amperage Range 5–425 A
Output Range 10–38 V, 15–425 A
Current Type
Rated Output 350 A at 34 VDC, 60% duty cycle
Max Open Circuit Voltage 75 VDC
Weld Output
Net Width 318 mm (12.5 in.)
Net Height 432 mm (17 in.)
Net Length 610 mm (24 in.)
Net Weight 42.2 kg (93 lb.)
Warranty 3 Years
Miller’s True Blue Warranty