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Miller® Multimatic® 255 208 - 575 Volts Single Phase CC/CV Multi-Process Welder With Auto-Line™ Power Management Technology, EZ-Latch™ Running Gear And Accessory Package

Airgas Part #:MIL951767

Manufacturer Part #:951767

$4,899.00 /Each

Item Details

  • Miller® Multimatic 255 Multiprocess Welder with EZ-Latch Running Gear- 208-575V is built for professionals in the MRO and light manufacturing/fabrication segments who want a smaller, versatile welder with intuitive setup to increase efficiencies and productivity. This inverter multiprocess elder is easy to use, will deliver versatility for faster uptime and performance, while allowing for portability.


  • Versatility : Multiprocess Capabilities of MIG, Pulsed MIG, Stick (6010), DC Lift Arc TIG and DC Pulsed TIG
  • Easy-to-understand interface : 7-inch color LCD display ensures proper machine setup and parameter selection, reducing setup time and increasing weld time
  • Auto-Line™ Technology : For portability and reliability this inverter power supply allows for any single-phase input voltage hookup (208-575 V) with no manual linking, providing convenience in any job setting Ideal solution for dirty or unreliable power
  • Pulsed MIG welding delivers higher quality: 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
  • Auto-Set™ Elite : 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
  • MDX-250 MIG Gun w/ AccuLock™ S consumables : AccuLock liner loads from the front and locks at the front and back to insure proper alignment for flawless wire feed path New rubber overmold and ball -and-socket handle design improves grip and reduces welder fatigue New Industrial Bernard AccuLock™ S contact tips provide superior Spray and Pulsed MIG arc performance
  • Portability : Machine only weighs 84 lb Weight is reduced by more than 50 percent compared to transformer welding machines
  • EZ-Latch™ running gear : 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
  • Auto-Line™ Technology - Work in more places with Auto-Line technology which automatically calibrates the power source to operate properly when connected to any primary input voltage ranging from 208-575 volts, single- or three-phase, 50 or 60 Hz -” with no manual linking required.


  • True Blue® Three year warranty
  • Power source is warranted for 3 years, parts and labor
  • Original main power rectified parts are warranted for 5 years
  • Gun warranted for 90 days, parts and labor


  • Power source with 10 ft (3 m) power cord
  • 15 ft (45 m) 250-amp MDX™-250 MIG gun w/Bernard® AccuLock™ S consumables for 035/045 in (09/12 mm) wire
  • 10 ft (3 m) cable w/electrode holder and 50 mm Dinse-style connector
  • 10 ft (3 m) work cable w/clamp and 50 mm Dinse-style connector
  • Flow gauge regulator and gas hose for argon or AR/CO2 mix
  • Extra contact tips
  • 035/045 in (09/12 mm) reversible drive rolls
  • EZ-Latch™ single-cylinder running gear
  • Chain to secure gas cylinder
  • Material thickness gauge


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

Product Attributes

Trade Name

» Multimatic® 255
» Multimatic®

Input AC Voltage

» 208V
» 220V
» 230V
» 240V
» 460V
» 480V
» 575V

Output Mode



» Pulsed MIG (GMAW-P)
» Flux Cored (FCAW)
» Stick (SMAW) |Pulsed TIG (GTAW-P)

Output DC Amps (Max)

» 350

Output Voltage

» 5 V
» 30 V


» Single Phase


» 50/60 Hz

Amperage Range

» 350 A
» 0.21 A

Duty Cycle

» CV: MIG - 230 Amp at 25.5 Volt at 60% Duty Cycle
» CC: Stick - 200 Amp at 28 Volt at 60% Duty Cycle
» CC: TIG - 275 Amp at 21 Volt at 60% Duty Cycle

Power Supply Type

» Inverter


» 148 lb