Miller XMT 350

MAKE: Miller

MODEL: XMT® 350 CC/CV, Dinse

In Stock and available for shipping

Discover the XMT 350 Series – Portability and Performance Redefined

Unmatched in portability and arc performance, our offering – the XMT 350, is the industry’s favourite. Proudly showcasing multiprocess capabilities and unique features like Auto-Line, this portable powerhouse is highly adaptable for various applications, from demanding job sites to busy factory floors.

Discover the exceptional adaptability and superior performance that makes the XMT 350 stand out in its class.

Miller XMT 350 Specifications

Title: XMT® 350 CC/CV, Dinse

Industries Interests: Shipbuilding, Manufacturing, Welding Education and Training, Heavy Equipment, Railcar, Aerospace, Construction and Fabrication

Amperage: 15 A – 425 A

Weldable Metals: Aluminum, Specialty Metals, Stainless Steel, Steel

Input Voltage: 208 V | 220/230/240 V | 380/400/440 V | 460/480 V | 575 V

Rated Carbon Diameter: 1/4 in (6.4 mm)

Input Phase: 1- and 3-Phase

Input Hz: 50/60 Hz

Input Amperage: 3 Phase – 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)

Current Type: DC

Portability: Handle(s), Running Gear / Cart (Optional)

Weld Output: CC / CV

Net Width: 20 in

Net Height: 16 in

Net Length: 26 in

Net Weight: 80 lbs

Warranty: 3 Years Miller’s True Blue Warranty

Miller XMT 350 Features

Advanced Features for the Professional Welder

Experience the XMT 350’s Adaptive Hot Start™, ensuring effortless stick electrode performance and eliminating inclusions. With infinite arc control in both Stick and Wire modes, fine-tune challenging materials and out-of-position tasks with ease.

The Lift-Arc™ technology provides an arc start that minimizes electrode contamination without high frequency, maintaining your welding output constant for outstanding MIG weld performance.

Auto-Line™ Power Management Technology

With the XMT 350, manage your input power effortlessly. The Auto-Line™ technology accommodates various input voltage ranges (208-575 VAC, single- or three-phase) without manual linking. It’s designed to generate power effectively, even in settings with dirty or unreliable power, making it a convenient solution for any job.

Output Connector Choices

The XMT 350 offers Dinse- or Tweco®-style weld cable connectors, ensuring high-quality welding connections. Each Dinse machine comes with two Dinse connectors, offering flexibility and reliability in your operations. (Note: Tweco connectors are available separately.)


Leveraging Wind Tunnel Technology™, the Miller XMT 350 provides unparalleled reliability by protecting its internal components. Its Fan-On-Demand™ cooling system operates solely when necessary, reducing noise, energy use, and machine contamination.

Standard 14-pin Receptacle

Expect flawless flexibility with the Miller XMT 350. Its standard 14-pin receptacle is adaptable for use with feeders, remote controls, and spool guns, enhancing your welding experience with superior versatility.

Welder-friendly Control Panel

The process selector switch reduces control setup combinations, ensuring no compromise on features. Protected by an ultra-tough polycarbonate-blended cover, it comes with large dual digital meters that are easy to view and preset, streamlining the weld output setting.

Miller XMT 350 Applications

  • Construction
  • Shipbuilding
  • Railroad
  • Truck/trailer manufacturing
  • Fabrication
  • Repair shops
  • Rental fleets
  • Power generation plants


Miller XMT 350 Processes

  • MIG (GMAW)/Pulsed MIG (GMAW-P)*
  • Stick (SMAW)
  • TIG (GTAW)
  • Flux-cored (FCAW)
  • Air carbon arc cutting and gouging (CAC-A)
  • Rated: 1/4-inch carbons
  • Capable: 5/16-inch carbons

*Available on select models.

Miller XMT 350 FAQs

How long will a Miller XMT 350 run?

With its robust design and advanced technology, this machine offers extended operational hours. The exact duration will depend on the specific application and usage circumstances, but rest assured, the XMT 350 is built for continual high-performance output.

How many amps is a Miller XMT 350?

Delivering impressive power and performance, the XMT 350 offers a broad amperage range from 15A to 425A. This broad spectrum allows for a diverse range of applications, from fine precision work to heavy-duty industrial projects.

How much does a Miller XMT 350 weigh?

Despite its power and versatility, the XMT 350 is a lightweight champion, weighing in at just 80 lbs (36.3 kg). This makes it highly portable and convenient for a variety of job site conditions.

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