Miller XMT® 425 Multiprocessor Welding

Availability : in stock

Wind Tunnel Technology™
protects electrical components and PC boards from contamination.
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.
Adaptive Hot Start™
increases the output amperage at the start of the weld if necessary, reducing electrode sticking.
Inverter arc control technology
provides greater puddle control for superior 6010 stick electrode performance, and outstanding MIG weld performance.
Low OCV stick.
Selectable feature that reduces open-circuit voltage to nearly 15 volts when power source is not in use. Eliminates need for add-on voltage reducers.
Process selector switch
reduces the number of control setup combinations without reducing any features.
Auto-Line™ power management technology
allows for any input voltage hookup (230–575 V) with no manual linking required, providing convenience in any job setting. Ideal solution for dirty or unreliable input power.
Large, dual digital meters
are easy to view and are presettable to ease setting weld output.
115-volt auxiliary power
provides 10 amps of circuit- breaker-protected power for coolant systems, etc.
Auto Remote Sense™
enables unit to automatically use remote control if connected to remote control receptacle.
Pulsed MIG capabilities.
MPa model has built-in capability and CC/CV model requires optional Optima™ control.
Additional MPa model benefits
Advanced arc control enables an improved pulse welding arc. The operator has more control over puddle and bead characteristics using SharpArc. In addition, the unit provides a more robust and stable arc at very low arc length, reducing heat input, and providing the ability to weld on a wider range of material thickness.
SharpArc® controls the arc in pulsed MIG mode and gives total control over the arc cone shape, puddle fluidity and bead profile.


Pulsed MIG (GMAW-P)*
Flux-cored (FCAW)
Stick (SMAW)

Heavy Industrial Applications

Truck/trailer manufacturing
Repair shops
Rental fleets
Power generation plants

Input Power

230 – 575 V, 50/60 Hz,
3-phase power

Net Weight

43 kg (94.8 lb.)

Voltage Range in CV Mode

10–38 V

Amperage Range in CC Mode

5–425 A

Rated Output

275 A at 21 VDC,
100% duty cycle
425 A at 27 VDC,
30% duty cycle

P Rating


Max. Open- Circuit Voltage

75 V


H: 432 mm (17 in.)
W: 318 mm (12.5 in.)
D: 610 mm (24 in.)

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