Sunstac 5-in-1 Multiprocess Welder, 110/220V Dual Voltage

At its price point, this is one of the most impressive machines I have used to this day. I’ve been welding for close to 20 years now and this thing lays down when you want it to. I run it as a piggy back machine off of my older miller trailblazer (generator 220v power) and I’ve put about 100 pounds of wire through it so far 10 10# spools in a few weeks time only had it over heat 1 time because it was sitting next to the trailblazer which was throwing off substantial heat. I’ve now relocated and haven’t had that problem since. I ran it nearly maxed out welding 1/2 plate steel to 1/4 plate steel for about 4 hours straight with no issues and excellent penetration. If you are having problems with this machine it’s more than likely user error or wrong settings, do yourself a favor and do some research on proper settings and technique. The plasma cutter on it performs well with light duty cuts but will struggle cutting heavier plates for a long distance. It will cut through 1/4 plate like butter but anything thicker requires a little more attention. The only real flaw I can find with this machine is it is not capable of AC current (tig aluminum) other than that it exceeds performance expectations for anyone looking for a home or garage welder. I use this thing to make money and it’s paid for itself 13 times already in just a few weeks. At that rate I’ll buy one once a month if I have to.

I’m really impressed with this all in one welder. So far, used in stick and mig modes, ok 220v. I’m not a pro welder, but I’m amazed by the results. Even using gasless flux wire, it is very easy and intuitive to use. All parts feel solid and tough enough for everyday work. Next step, to use the plasma cutter and rig torch. We’ll see. I’ve read some comments about missing parts. I did a complete check and nothing is missing. Even there are some torch consumables included, which I didn’t expect. Couldn’t be happier with the purchase.

The machine seems well built with sturdy hinges and handle. The shell of it is solid without a "tinny" feel to it. I have been mig welding 3/8 steel. Works great. The plasma cutter worked good on 1/2" steel and was very clean cutting on anything under 1/2 inch. This combo machine had the highest duty cycle in this price range. I have it at maximum settings on a 30 amp 220v breaker and it hasn't tripped it. So far I am very impressed. It's very impressive the capabilities of what this can do for this price. Now hopefully it lasts a long time.

First, on arrival, system was and is missing air hose and hose fittings required for plasma cutting. Second, the manual is marginal at best and seems incomplete. For instance, there is a wire drive polarity lead with an exposed contact. The manual indicates how it should be connected for some of the functions but doesn't say what to do with it during plasma cutting. The cable looks like it might be possible to disconnect it completely but it doesn't unplug easily and it seems like a poor idea to force it. At this point, it can't be used so it is currently worthless.

So far the machine seems like it welds pretty good lays solid beads The thing that I am most impressed with is how well the plasma cutter cuts. Everything seems to function well although I have a 11 pound full of wire in the machine the little holder that holds the wire spool seems a little cheap and flimsy it flexes up and down, but hasn’t broke yet so for the money I say it’s a deal it does what I need to do

Bought as gift and works good.

Though I have yet to weld or cut anything, I wanted to share the electrical ratings given in the manual to help potential buyers make a more informed decision about current draw and what size circuit breaker might be needed for each feature of this machine. For the record, I plan to do nearly everything on 220 volts AC, but at the moment, I only have a 30 amp 220 circuit and a 30 foot 40 amp RV extension cord and all of my cutting and welding will be done outdoors. Also, I will only be using the Plasma, MIG, Flux and Stick welding features (yes I know about shielding gas in windy environments, I'll try to make accomodations when possible). Also, understanding how much functionality is packed into such a cheap machine, I will be very cautious and try not to overdrive it in hopes of making it last for as long as possible all while using it semi frequently all year in every weather condition from hot/humid, warm/rainy (under a canopy) to frozen/snowy all outdoors as I have no garage/shop (yet), but always have need to fabricate and construct or repair heavy equipment for other local small contractors in asphalt paving. If something goes ZAP and it is larger than an integrated circuit, I am competent to repair it myself. All of the above being said, I preemptively gave this unit 5 stars as it's everything a steel welder could hope for in one cheap lightweight box, and it's way more visually pleasing than my baby blue Yeswelder TIG205-DS. Should my expectations be sorely mistaken, I will edit my review appropriately.

I've used this welder a few times. Have used the plasma cutter, the MIG welder and the stick welder. So far. This thing works awesome with no issues. Very pleased with its performance and its duty cycle.