Millermatic 255 Auto-Line MIG Welder (208-575V) 907964

Miller® Millermatic® 255 Auto-Line™ MIG Welder (208-575V) 907964

The Miller® Millermatic® 255 Auto-Line™ MIG welder is a complete 250 amp welding package that comes standard with pulsed MIG welding capability and automatic single-phase, 208 to 575 input voltage detection. The inverter design means that the Millermatic 255 is less than half the weight of its popular predecessor, the Millermatic 252. Auto-Line™ allows for operation on any single-phase input voltage between 208 and 575 volts without manual linking. Auto-Set™ Elite technology allows you to use preset welding parameters based on metal thickness, shielding gas and welding wire type to achieve optimum welds. You can also set your voltage and wire feed speed manually, for a custom welding arc.

The Millermatic® 255 Auto-Line comes complete with full color seven inch LCD screen with intuitive design and simple controls. In addition to built-in welding programs, the Miller 255 Auto-Line can also store your custom welding programs. It seamlessly switches between welding with a standard MIG gun or an optional Spoolmatic™ spool gun. The 255 also features a direct plug for XR push-pull gun for professional aluminum wire feed capability. This allows you to use 12 inch spools of aluminum MIG wire instead of the more expensive 1 lb rolls used with the spool gun.



Processes

MIG (GMAW)

Pulsed MIG (GMAW-P)

Flux Cored (FCAW)

Applications
General fabricators
Contract welding services
Plant maintenance shops



Miller 255 Auto-Line MIG Welder Features:

Easy-to-understand interface with 7-inch color LCD display
Ensures proper machine setup and parameter selection, reducing setup time and increasing weld time. Quick-access backlit Auto-Set and Pulse buttons above the LCD display illuminate when active. Soft-key buttons below the display change function depending on which screen is displayed. Makes setup or change quick, easy and intuitive. Large text for easier readability. Intuitive connection setup images. Full troubleshooting descriptions versus help errors and look up codes.

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. Available for MIG and pulsed MIG processes with the ability to fine-tune your settings. Set weld parameters by selecting wire and gas type, wire diameter and material thickness.

Auto-Line™
Provides state-of-the-art flexibility by automatically connecting to 208-575 VAC, single-phase power without removing the covers to re-link the power source. Wondering if you have the correct machine for the shop or the job site is no longer a conern. Auto-Line is also an ideal solution for dirty or unreliable power.

Program mode
Allows easy save and recall of favorite weld settings. Deliver more productivity by eliminating the need to manually set the parameters. Deliver consistent quality by welders of all skill levels by using prequalified weld settings. Minimize supervisor need to intervene.

Pulsed MIG welding
Delivers higher quality welds for ALL welders. Lower heat input for less distortion on thin materials and better puddle control on out-of-position welds. Less spatter minimizes post weld grinding and rework allowing more welding time. Perform welding applications that couldn't be done in the past. Ideal for MIG welding aluminum and stainless steel.

Compatible with push-pull MIG guns.
Increases productivity by allowing the use of 12-inch wire spools versus a spool gun's 4-inch spools. Reduces downtime changing wire spools.

Millermatic 255 Auto-Line Specs




Comes complete with:

• Millermatic® 255 Auto-Line™ MIG welder with 10 ft. (3 m) power cord
• 15 ft. (4.5 m) 250-amp Miller® MDX™ MIG Gun with AccuLock™ S consumables for .035/.045 in. (0.9/1.2 mm) 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
• Extra contact tips
• .035/.045 in. (0.9/1.2 mm) reversible drive rolls
• Material thickness gauge

PLUS get a $500 cash rebate from Miller® with the purchase of this Millermatic® 255 MIG welder. Rebate form must be submitted online HERE within 30 days of original purchase. Offer expires 9/30/26.

Earn additional rebates when you purchase additional Miller® branded accessories or Hobart® filler metals.