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Miller® Millermatic® 355 1 or 3 Phase MIG Welder With 208 - 575 Input Voltage, 400 Amp Max Output, 25 ft Water-Cooled XR-AlumaPro Gun, EZ-Latch™ Running Gear, And Accessory Package

Airgas Part #:MIL951927

Manufacturer Part #:951927

$10,599.00 /Each

Item Details

  • Easy to use machine to increase efficiency and productivity for manufacturing and fabrication users. 7" Color LCD screen featuring Auto-Set™ Elite, Electronic Parameter chart, and Trigger Program Select. This all-in-one welder connects to any North American input power. Welds up to 1/2” aluminum, stainless and mild steel.


  • 7-inch color LCD display ensures proper machine setup and parameter selection, reducing setup time and increasing weld time
  • Lower heat input for less distortion on thin materials, less spatter minimizes post weld grinding and rework allowing more welding time. Perform welding applications that couldn’t be done in the past.
  • Offers predefined weld settings to increase ease of use and ensure that the job is done right for operators of all skill levels.
  • Program mode allows easy save and recall of favorite weld settings.
  • Deliver more productivity, consistent quality by welders of all skill levels by using prequalified weld settings. Minimize supervisor need to intervene.
  • Increases productivity by eliminating the need to go back to the machine to change weld settings. Simply tap gun trigger to select the program.
  • Capabilities include MIG, pulsed MIG and flux-cored welding.
  • New lighter XR-Aluma-Pro guns reduce fatigue, improve output and are rugged to withstand industrial environments.
  • Weight is reduced by more than 40 percent compared to the Millermatic 350P.
  • Operators no longer need to use lift truck to load machine and running gear into the truck. Latches secure machine to running gear. Simply loosen the latch retaining knob and rotate latches to disengage machine from running gear for easy portability.
  • Provides versatility to utilize any single- or three-phase North American power (208, 240, 460, 575 V). Location in the wire drive compartment provides the ability to manually switch input voltage. An error will display if wrong input selected.
  • The Millermatic 355 will be able to operate and provide full output when powered by generators with 19000 Watt (19K) output or higher. Limited output will occur when used with smaller generators.


  • Power source with 9 ft. (2.7 m) industrial power cord
  • 25 ft. (7.6 m) XR-Aluma-Pro air-cooled push-pull MIG gun with Miller FasTip consumables for .035/.047 in. (0.9/1.2 mm) aluminum wire
  • 10 ft. (3 m) work cable with clamp and 50 mm Dinse-style connector
  • Flow gauge regulator and gas hose for argon or AR/CO2 mix
  • .035/.047 in. (0.9-1.2mm) reversible U-Grooved drive rolls
  • Extra .035 and .045 in. (0.9 and 1.2 mm) contact tips
  • Material Thickness Gauge
  • EZ-Latch™ Running Gear
  • Chain to secure gas cylinder

Product Attributes

Trade Name

» Millermatic®
» Millermatic® 355

Input AC Voltage

» 208 V
» 220 V
» 230 V
» 240 V
» 460 V
» 575 V


» Flux Cored (FCAW)
» Pulsed MIG (GMAW-P)

Duty Cycle

» 310 A at 29.5 V
» 60% duty cycle
» 310 A at 29.5 V
» 60% duty cycle
» 310 A at 29.5 V
» 60% duty cycle


» 1 or 3 Phase


» 99 lb

Output DC Amps Max

» 400


» MM355


» MM355