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Model # Alpha-TIG 200X

200 Amp Alpha-TIG 203Xi TIG / Stick Welder

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  • Ideal for professionals or do-it-yourself enthusiasts
  • Durable construction for reliable performance
  • 100% Customer recommended (see reviews)
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Product Details

The new 200 Amp AlphaTIG 203XI, features digital control board technology coupled to a large, high visibility LCD color display. The AlphaTIG 203XI delivers pro-level features in an economical package that out performs similarly equipped models from competitors. The AlphaTIG 203XI features include fully adjustable AC frequency and AC balance settings which improve penetration, tungsten life, arc cone and etching width. It also includes pulse in AC and DC modes, which allows the user to minimize warping from heat distortion and to control puddle width and melt through. The new Rapid Set function is a valuable tool for both professionals and novices alike by providing a pre-programmed range of Amperage for a particular job based off the tungsten size and metal thickness provided by the user. Rapid Set functions in Stick mode as well. Simply choose the class of welding electrode (E6011, E7018 etc.) rod and diameter and a preset range amps will automatically be provided. The 2T/4T Sequencer function allows the unit to be used with a remote switch, enabling it to control and cycle programmable functions such as pre/post flow control, and start/end amps without the use of a foot pedal. This is helpful for welding out of position or wherever a foot pedal may not be useful. The new Alpha TIG 203XI is an excellent choice for the for the professional fabricator or novice welder. It features the performance demanded by the professional, but delivers it on a budget of a beginner.
  • Comes with 17-series TIG air-cooled torch, and a spare 9-series torch head
  • AC/DC TIG and AC/DC Stick
  • 60% duty cycle at 200 amps
  • New, updated Pulse frequency from 0.5 to 250Hz on DC, and from 0.5 to 150Hz on AC
  • 200 Amp TIG/ 160A Stick output on 240v
  • Dual voltage input, can either run on 110 or 220-Volt electricity
  • Will do 1/4 in. aluminum and 3/8 in. mild steel
  • High visibility LCD screen, Digitally controlled functions and features
  • Quality TIG welding on aluminum, stainless or steel and precise welding of thinner-gauge materials
  • Advanced inverter technology with PWM (pulse width modulation) using IGBT technology
  • Unit features HF start TIG and includes a foot control pedal for great TIG welding control and operation
  • In stick mode, welder is capable of welding 7018, 6013 and most other common rods
  • Square-wave inverter for aluminum welding, with pulse frequency, allowing for simple set up and operating
  • 2T/4T function
  • Return Policy


Dimensions: H 21 in, W 9 in, D 21 in


Product Depth (in.)21 inProduct Height (in.)21 in
Product Width (in.)9 in


Duty Cycle (%)60Engine PowerElectric (AC)
IncludedAdditional Tips, Hose, Kit, Tips, TorchInput Power (Volts)220
Material Application Thickness (in.)0.5Maximum amperage output (amps)200
Minimum amperage output (amps)10Output Current ModeAC/DC
Rated Output (Volts)240Returnable90-Day
Welder TypeArc, Multi-Process, Stick, TIG

Warranty / Certifications

Manufacturer Warranty3 year warranty

Questions & Answers

Q:What's the difference between the ahp201 and the ahp203
by|Jun 21, 2022
2 Answers
Answer This Question

A:  AlphaTIG 203Xi is a newer model of AlphaTIG 201XD. it came out end of last year. main upgrade is digital display. also, few new settings, and minor updates to its original bells and whistles.

by|Jun 23, 2022

    A:  203 is a newer model a few new settings and the digital panel other than that pretty much the same I'm buying a 203 and I have a 201 I love my 201.

    by|Jun 22, 2022
      Q:Replacement pedal and Replacement 220 to 110 cord
      by|Apr 21, 2021
      1 Answer
      Answer This Question

      A:  please call ahp tech support. you can find more info at ahpwelds.com. thank you.

      by|Apr 22, 2021
        Q:1st Image is AHP 201XD, 2nd image is the 200X. Which welder are you selling?
        by|Sep 2, 2020
        1 Answer
        Answer This Question

        A:  TIG 201XD. there have not been new 200Xs for ~2 years already. not sure why 2nd image not getting updated.

        by|Sep 15, 2020
          Q:When using DC mode, are any of the AC set ups such as: AC Freq, or AC balance, knobs should be tu...
          by|Aug 21, 2020
          1 Answer
          Answer This Question

          A:  AC control knobs only apply to AC mode operation, and do not affect the settings on DC mode. So, when you select the red switch from AC to DC, it overrides the AC knobs.

          by|Aug 22, 2020
            Showing 1-4 of 88

            Customer Reviews

            4.6 out of 5
            • 4.6
              out of 47 reviews
            • 90% recommend this product
            Filter by:
            Showing 1-10 of 47 reviews
            Accessories not Included
            I received the welder and the attached power plug. The accessories listed first in the item description were not included.
              Welds great
              I’ve used this welder every day for the last two weeks and haven’t found anything I didn’t like I’m out of practice but the welder works great it’s like going back to welding school I have used every function on it including the stick welding and they have all been very good had a Miller Tig that I bought new in 2007 lost it in a fire and couldn’t afford another one but this works just as good only time will tell how it last very happy and recommend to anyone the foot pedal and torch are nice
                • Recommended
                First machine popped once turning it on. Second machine is still going strong. Had to turn AC bal...
                First machine popped once turning it on. Second machine is still going strong. Had to turn AC balance all the way down or less cleaning. Otherwise it eats tungsten like candy. Rubber lines easily crack and there is slight gas leak. You will have to gain competence in repairing it if and when things go south. Risk is still good. Still managed to repair aluminum timing cover, several other projects, and build an enclosure for a BBQ on a Pontoon boat.
                  • Recommended
                  Yes, wonderful machine. The pulse on the AC and DC is what is worth the money. The last TIG tha...
                  Yes, wonderful machine. The pulse on the AC and DC is what is worth the money. The last TIG that I had didn't have the pulse or AC frequency. Did I need it? Well, I thought that I did. I have used the pulse on the new machine about a third of the time. My first project with it was building an aluminum fuel tank for a diesel generator. The tank is four feet by five feet by two feet and is about 250 gallons. With two baffles on the inside of the tank the total welding distance is approximately 26 feet of weld. I did save some welding with four bends, otherwise it would have been about 45 feet of welding. The machine did excellent and I am very happy with it. Note to Home Depot: UPDATE YOUR PICTURE OF THIS MACHINE! This is an old picture of the earlier model. Come on marketing department! Request a newer picture!
                  • Verified Purchase
                  • Recommended
                  9 found this review helpful
                  Have used the machine for stick, tig steel and aluminum and am impressed with how easy it is to use.
                  AHP 200 Amp Alpha-TIG 203Xi TIG / Stick Welder
                  • Verified Purchase
                  • Recommended
                  Very happy I was able to buy a good mid...
                  Very happy I was able to buy a good mid range welder while not having to pay an arm and a leg for shipping out to Hawaii
                  • Verified Purchase
                  The 200Amp Alpha TIG welder is outstanding - value in...
                  The 200Amp Alpha TIG welder is outstanding - value in the price as offered, outstanding in product that arrived, quality of materials, and ready-to-weld set up explained in instructions. Same or near equivalent welder would cost More by another manufacture, not having the accessories found in the AlphaTIG welder package.
                  • Verified Purchase
                  Great products!! Great people at Home Depot to work with!!...
                  Great products!! Great people at Home Depot to work with!!
                  • Verified Purchase
                  1 found this review helpful
                  • Verified Purchase
                  1 found this review helpful
                  Rating provided by a verified purchaser...
                  Rating provided by a verified purchaser
                  • Verified Purchase
                  Showing 1-10 of 47 reviews