Miller Millermatic 255
Miller Millermatic 255 MIG/Pulsed MIG Welder
Miller Millermatic 255 MIG/Pulsed MIG Welder
Miller Millermatic 255 MIG/Pulsed MIG Welder
Miller Millermatic 255 MIG/Pulsed MIG Welder
  • SKU: 907734
  • Brand: Miller Electric
  • Availbility: IN STOCK

Miller Millermatic 255 MIG/Pulsed MIG Welder

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Easy to use machine to increase efficiency and productivity for the light manufacturing and fabrication users. Color screen featuring Auto-Set™ Elite and Pulsed MIG. This all-in-one welder connects to 208 or 240 volt input power. Welds up to 1/2” aluminum, stainless and mild steel.

Regular price $5,080.99 Sale price $4,017.00
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  • Description
  • Specs
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Easy-to-understand interface
7-inch color LCD display ensures proper machine setup and parameter selection, reducing setup time and increasing weld time.

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.

Auto-Line™ Technology
For portability and reliability, this inverter power supply allows for any single-phase input voltage hookup (208–240 V) with no manual linking, providing convenience in any job setting. Ideal solution for dirty or unreliable power.

Capabilities include MIG, pulsed MIG and flux-cored welding.

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 the Millermatic 252.

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.

What's Included (Running Gear Package)

  • Millermatic 255 with 10 ft. (3 m) power cord
  • 15 ft. 250-amp MDX™-250 MIG gun w/ Bernard® AccuLock™ S consumables for
  • .035/.045 in. (0.9/1.2 mm) wire
  • 10 ft. (3 m) work cable and clamp and 50mm Dinse-style connector
  • Flow gauge regulator and gas hose for argon or AR/CO2 mix
  • 035/.045 in. (0.9/1.2 mm) reversible drive rolls
  • Chain to secure gas cylinder
  • Material Thickness Gauge
  • EZ-Latch™ Running Gear

General Specifications

Title Millermatic® 255 MIG/Pulsed MIG Welder - 208/240V
Material Thickness Mild Steel 24 ga. (.51 mm) - 1/2 (13 mm)
Aluminum 18 ga. (1.02 mm) - 1/2 (13 mm)
Weldable Metals Steel
Stainless Steel
Input Voltage 208 V
220/230/240 V
Input Phase 1-Phase
Input Hz 50 / 60 Hz
Input Amperage 31.4
Current Type DC
Rated Output 230 A at 25.5 V, 60% duty cycle
Max Open Circuit Voltage 87 VDC
Amperage Range 20 A - 350 A
Wire Feed Speed 50 IPM - 800 IPM
Wire Diameter Aluminum 0.035 in 0.047 in
Flux Cored 0.03 in 0.045 in
Stainless 0.023 in 0.045 in
Solid Steel 0.023 in 0.045 in
Spool Size 12 in (305 mm)
Weld Output CV
Net Width 13.75 in
Net Height 19.25 in
Net Length 26.25 in
Net Weight 84 lbs
Warranty 3 Years
Miller's True Blue Warranty



Millermatic 255 Spec Sheet