Miller XMT® 350 MPa

Designed for construction, mining, manufacturing and fabrication


The ultimate Multi-Process inverter welder providing outstanding productivity.

Advanced arc control.

Improved pulsed MIG welding.

Handles hard-to-weld alloys found onsite.

Where to Buy

Product Overview


  • Truck and Trailer Manufacturing
  • Shipbuilding
  • Repair Shops
  • Rental Fleets
  • Railroad
  • Power Generation Plants
  • Fabrication
  • Construction

What's In The Box

  • XMT 350 MPa Power Source


For details, refer to the Miller warranty statement.

Auto-Line™ Power Management

Automatically compensates for various input Voltage. Suits jobsite and generator power. Keeps welding output constant even if input power varies by +/- 10%.

Dinse or Tweco Style Weld Disconnects

Provides high-quality weld cable connections.


The cooling system operates only when needed, reducing noise, energy use and the amount of contaminants pulled through machine.


Allows TIG starting without the use of high-frequency. Starts the arc without contaminating the weld with tungsten.

Inverter Arc Control Technology

Provides greater puddle control for superior 6010 Stick electrode performance, and outstanding MIG weld performance.

Built-In Pulsed MIG Programs With Synergic Capability

Lightweight, Aerospace-Grade Aluminium Case

Offers heavy-duty protection with the benefit of reduced weight.

Process Selector Switch

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

Large, Dual Digital Meters

Easy to view and can be pre-set.

Wind Tunnel Technology™

Protects electrical components and PC boards from contamination.

Adaptive Hot Start™

Increases the output Amperage at the start of a weld if necessary, eliminating electrode sticking.



  • MIG
  • Stick
  • TIG
  • Gouging
  • 1 Phase
  • 3 Phase
  • Input Voltage
    208 V
    220/230/240 V
    380/400/440 V
    460/480 V
    575 V
  • Input Hz
    50 / 60 Hz
  • Input Amperage
    208 V (40.4 A)
    230 V (36.1 A)
    400 V (20.6 A)
    460 V (17.8 A)
    575 V (14.1 A)
  • Max Open Circuit Voltage
    75 VDC
  • Weld Output
    CC / CV
  • Dimensions (mm)
    H: 432
    W: 318
    D: 610
  • Weight
    36.3 kg

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