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Blue Demon BlueArc-90STI Review


The BLUEARC-90STI 90-Amp inverter by Blue Demon is both a Stick and Tig welding machine that has been getting a lot of great reviews lately. In fact, it is one of the top selling welders on Amazon, which is saying a lot. Although they don’t seem to have sold as many machines as some of the other brands, they certainly do have a great rating (5/5 stars!) that says a lot about its design and quality.

This machine is an inverter-based stick welder that also has a TIG option for convenience, although most people prefer to use it with stick welding. I’ve also seen that it really excels in smaller repairs and home welding. Mostly due to its simple use and size.

One of the best features is its light weight. Since it is 115V inverter-based, it has a smaller transformer, which makes it much smaller and therefore light weight. This makes it perfect for carrying around and transferring to different locations, which you’ll probably do pretty often. Even better, it comes with a shoulder strap, making it ideal for transporting.

The price is nothing to complain about also, currently selling at right around $180 on Amazon, which is far better than the $230+ you’ll see on other places like eBay.


  • Brand: Welding Material
  • Maximum Output Amperage: 90
  • Minimum Output Amperage: 20
  • Amperage Rating: 20-90
  • Input Voltage: 120
  • Phase: Single Phase
  • Duty Cycle (%): 90 AMPS @ 20%
  • Style: Inverter Stick/TIG
  • Type: SMAW/GTAW
  • Input Current: AC
  • Output Current: DC
  • Width (inches): 14
  • Height (inches): 8
  • Depth (inches): 11.5
  • Item Weight: 12.2 pounds
  • Part Number: BLU-90STI
  • Origin: USA
  • Item model number: BLUEARC-90STI
  • Batteries Required?: No

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