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Take your welding projects to the next level with the Miller Multimatic 255 Multiprocess Welder. Designed for ease of use and high performance, this all-in-one welder handles MIG, Stick, and DC TIG processes with professional precision. Whether you are welding mild steel, stainless steel, or aluminum, the Multimatic 255 delivers a smooth, stable arc. The included MDX-250 MIG gun features the AccuLock S consumable system, which ensures flawless wire feeding and superior arc performance, reducing downtime and operator fatigue.
Gone are the days of guessing your settings. The Multimatic 255 features a vibrant 7-inch color LCD screen that guides you through the setup process. The Auto-Set Elite technology eliminates the guesswork by providing optimal settings based on your material and gas type. This feature is perfect for welders of all skill levels, ensuring that the job is done right the first time. For those who prefer manual control, the machine offers full adjustability and a Program Mode to save your favorite settings for instant recall.
Weighing only 84 lbs, the Multimatic 255 is designed for portability. The inverter technology not only reduces weight but also improves energy efficiency. The machine is compatible with the optional EZ-Latch running gear (sold separately), which allows for quick detachment of the power source from the cart, making it easy to load into a truck or move around the shop. The Auto-Gun Detect feature automatically adjusts voltage and wire speed when switching between the standard MIG gun and an optional spool gun or push-pull gun.
This package includes everything you need to start MIG and Stick welding immediately. It comes with the power source, a 15-foot MDX-250 MIG gun, a 10-foot cable with electrode holder, a 10-foot work cable with clamp, a flow gauge regulator with gas hose, and reversible drive rolls. With its ability to run 6010 stick electrodes and its direct connection for push-pull guns, the Multimatic 255 is a versatile workhorse ready for any challenge in the shop or field.
| Additional Information |
|---|
| Brand:Miller |
| Amperage:350 |
| Voltage:208/230/460/575 V |
| Weld Process:Multi-Process |
| Duty Cycle:60% |
| Input Phase:1-Phase |
| Process Type:Multi-Process |
| Input Voltage / Phase:208-575 V, 1-Phase |
| Amperage Range:5 A - 350 A |
| Wire Feed Speed Range:50 - 800 IPM |
| Net Weight:84 lb |
| Max Open Circuit Voltage:81 VDC |
| Compatible Wire Sizes:0.023" - 0.045" (Solid), 0.030" - 0.045" (Stainless), 0.035" - 0.047" (Aluminum) |
| Warranty Period:3 Years |
| Item:Welding Machine |
| Input Voltage:208-575 V |
| Packaging Description:1 PER EA |
Used this product on the job? Tell other welders how it held up.
The best miller welder ever build all in one together.
Work around the house and for building heavy duty metal jobs .
Another slam dunk Multimatic from Miller!!!!
Miller absolutely knocked this one out of the park!! Again, Miller has exceeded its advertising and claims of what this machine can do. I have been researching and studying for a few years and recently got a job shop fabricating stainless handrails and needed pulsed stainless MIG. I decided to pull the trigger. Could not have been happier with the product and its ability. It was so good I called Miller tech support to let them know how accurate and awesome this machine is! If you are on the fence about spending the money, do it, once you're turning out quality welded product in less time with no heat distortion, you will not think about the investment.
Got two of these as an "upgrade" for 252s.
Constantly overheated. Basically not even close in comparison to the 252s. Returning them for lack of performance since they could not weld more than a few feet at a time and weld performance was not comparable. Put the 252s back in service. Basically if you run high duty cycles on thick material (1/4 to 1/2 inches plus) these are not the machine for the job. So consider your application first.
I am going to purchase three more because of the versatility
The Miller Electric Multimatic 255 Multiprocess Welder is a great addition to our Welding Lab. This machine can handle up to 300 amps. This machine is perfect for a fabricator that specializes in Commercial Sheet Metal Fabrication. I recommend this machine.
The Multimatic 255 Multiprocess welder is fabulous
Actually it was purchased in November 2023. This welder is fabulous! It runs quietly, whereas the 235 has a fan running constantly and is loud. This 255 has pulse and the students love it! Easy to keep everything connected and make a switch quickly for MIG, TIG, or ARC. The 255 welds heavier materials and is nicer to use than the 235, but the cost difference is about $1000. The Multimatic 255 Multiprocess welder with the two tank dolly setup is excellent, in mine and the students opinions. I also like the machine cover as it protects the machine neatly while not used for months. Only desire for a difference is longer work clamp and gun cables would be a plus.
cant wait to get two more of these for the shop
so far this welder has been a good buy very easy to set up and use !
I will buy it again if I need another one.
Great machine, good quality. Just wish would it come with 25 feet long mig gun.
I would but this machine again and again
This is probably the most versatile machine I have ever seen or used, my guys in the shop could not wait to get it hooked up and try the pulse function. This is the second unit I have been involved with the purchase and I personally love them, you can run it off of a generator or welder, it's portable and light with a huge ability, Mig, Stick and Tig. We are a Mechanical Company, and the purpose of this machine is to use in our maintenance department for repairs and light manufacturing.
yes wish i got this sooner
great new tool for my shop help to keep me current on all types of welding
Very satisfied
Primarily used for semi trailer repair. Great upgrade from our much smaller Lincoln welder. Auto settings, and having both gas bottles attached at all times is much more convieniant.
$675 Rebate
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