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.

Bought as gift and works good.

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.

I am not a professional welder, but this welder works well for me. I have used the flux-mig, stick, and plasma cutter and am very pleased. When I get around to Tig I will update. Only negative was, it was missing the short air hose for the plasma cutter. I would buy again.

Very aggravating to use. Set it to gassless and it'll change to gas or some other settings will change on it's own as you are welding. Save your money and look for other brands. Support is non-existent. The plasma cutter worked well out of the box and didn't have an opportunity to weld until after the return window expired. Now I'm stuck with a big $400 paper weight.

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 blew my life savings on this hunk of plastic. 110 stick was hard to arc at first then nearly impossible however I’m sure much easier with 220. MiG gun was fine. Easily to operate and figure out without reading instructions. Be careful with gas I blew the internal gas line with only 60 psi of argon. I had to fix it myself since the warranty changed from 90 to 30 days after purchase. I do like consistency. If treated like porcelain figurine it may last a year id love to wrong though. Good luck