
Take your welding productivity to the next level with the Miller Millermatic 255, an all-in-one MIG welding solution built for efficiency and ease of use. If you are looking for a machine that bridges the gap between simplicity and industrial power, the 255 is the answer. It features a vibrant 7-inch color LCD screen that makes setting up your weld as easy as using a smartphone. With Miller's exclusive Auto-Set Elite, you simply input your metal thickness and wire type, and the machine sets the perfect parameters for you—eliminating guesswork and reducing setup time.
One of the biggest advantages of the Millermatic 255 is its built-in Pulsed MIG technology. Traditionally found only on heavy industrial machines, Pulsed MIG allows you to weld thin aluminum and stainless steel with ease. It provides a cooler weld puddle, meaning less burn-through, less warping, and almost zero spatter to grind off later. This makes it an exceptional choice for auto body repair, boat fabrication, and intricate metal art. Plus, with the ability to weld up to 1/2-inch steel, it doesn't sacrifice power for finesse.
Portability is redefined with the included EZ-Latch Running Gear. Unlike standard carts that bolt the welder down, the EZ-Latch system uses quick-release latches. This means you can easily detach the 84-lb power source to load it into a truck or carry it into tight spaces, leaving the gas cylinder and cart behind. The machine is also generator-compatible (12,000 watts+), making it a reliable partner for field work.
This package is ready to weld out of the box with a high-quality MDX-250 MIG gun, regulator, gas hose, and reversible drive rolls. Whether you are a seasoned professional or a serious hobbyist, the Millermatic 255 offers the technology and ergonomics to help you weld better, faster, and with less fatigue.
| Additional Information |
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| Brand:Miller |
| Voltage:208/230 V |
| Amperage:350 |
| Weld Process:MIG (GMAW) |
| Duty Cycle:60% |
| Machine Cart:Mig Runner |
| Packaging Description:1 Per Ea |
| Process Type:MIG (GMAW), Pulsed MIG (GMAW-P), Flux Cored (FCAW) |
| Input Voltage / Phase:208/240 V, 1-Phase |
| Amperage Range:20 - 350 A |
| Rated Output:230 A at 25.5 V, 60% duty cycle |
| Wire Feed Speed Range:50 - 800 IPM |
| Max Open Circuit Voltage:87 VDC |
| Compatible Wire Sizes:Aluminum: 0.035-0.047 in, Steel: 0.023-0.045 in, Flux Cored: 0.030-0.045 in |
| Net Weight:84 lb (Machine Only) |
| Warranty:3 Years True Blue Warranty |