Miller Multimatic 220 AC/DC vs Millermatic 255
Owners rate the Miller Multimatic 220 AC/DC higher: 7.4/10 against 6.9/10. The Millermatic 255 costs $94 less ($4,191 against $4,285).
Miller Multimatic 220 AC/DC owners say
Hey man, I respect your opinion and I’m not gonna go back-and-forth with you but you have to understand. I am working in the city and I am a single man crew. This welder is 48 pounds and it can plug into 110 V. There are plenty of jobs and center city where I am working on let’s save the eighth floor and you cannot have a truck on site and you have to weld in a commercial kitchen. Let’s say using stainless steel me and you both know if you know anything about welding 220 A a lot of power unless you’re doing structural steel or heavy gauge aluminum, you rarely have to go that hot like I said we can all have our own opinion. I spent $4000 on this welder and I have had it for coming up on five years. It has never given me issues and I’ve built amazing things. Like I said, you can have your own opinion, but my content is more faced towards people trying to build a business. You can always go get a pipeline contract and go get a 400 pound welder that takes up the whole bed of your truck or you can steer people in a direction that suits working in a center city environment and to where you can work using 110 V. Like I said, I respect your opinion but you gotta understand mobile welding can be 50 different things. It depends what you specialize in and what types of jobs you’re trying to get me personally I like taking the job jobs where those big welders can’t get to because I get the charge more and if you look around all of the local welding companies are using inverters. So D 1.1 structural welding certified most common rod that I use is 7018 1/8 inch and that runs at 120 so I’m confused where you think this welder will not be capable of structural/all around the building for $4000!
Mines welded a Cast aluminum Alternator bracket for a C15 Caterpillar eningine. Fixed cracks in the charge air cooler. Its been used to help patch the trailers back together. With the stick. Option build new parts using the mig and Steel tug functions. Its made me a fair bit of money back working for the company I do. And runs great off the Hobo freight 13k Tripple fuel generator
Millermatic 255 owners say
@BuzzkillcoI believe you. You are influenced by your experience just as I am with mine. I guess we have different luck. I had a Miller DVI burn the transformer after about 2 years light industrial use. Mostly welding steel 14 & 16 ga. I know it is somewhat a smaller rated machine. But its an air cooled transformer machine. No air cooled inverter machine of mine has failed in 3 years of owning them. They shut off if the get hot and dont burn out. I have even been using the miller 255 for 1/2"& 5/8" welding because I like how it spray welds and is more portable, better then the miller 450. Also I found with portable welding that certain inverter machines are much better to use, lighter, more efficient, and more forgiving on dirty voltage. " when properly equipped with voltage correction " I did learn they will break from a fall, so now I try to treat them as if they were lazer levels by protecting them from drops and bad vibrations . Probably my day is coming for a smoked board but as of yet I have never smoked one from overload or overheating as the thermal protection has always worked, so far. Edit, I should add for anyone reading this that doesn't know or is not educated yet on the matter, an inverter welder running on generator current should be purchased with that in mind. As they make specific models just for that condition with voltage correction. Probably most are not intended for that and will burn out. Also people trying to run 140 amps on 110V are asking for trouble as well. That was not what I am doing with my experience. I am running 220v 1ph or 440v 3ph I also understand how induction works and have wound coils. I was only talking specifically about the duty cycle ratings being very important even if it is a transformer welder and the heat and thermal protections or lack thereof causing welding machine failure.
I first bought one to use the AlumaPro gun and 25` lead. I liked it so much I bought a second 255 machine so I could have one for metal fab and one for aluminum fab. I just wish there was a 25` lead for metal work without possibly building my own. I had a Miller200 wire welder I bought new over 40 years ago. I sold it for $100 more than it sold for new way back then! Millers are great tools!
