Northern Industrial ST80i welder

Discussion in 'The Garage' started by Giggity, Nov 3, 2012.

  1. Giggity

    Giggity ..........

    Joined:
    Aug 25, 2005
    Oddometer:
    770
    Location:
    Longmont, CO
    #1
  2. 9Dave

    9Dave Bazinga!

    Joined:
    Aug 4, 2005
    Oddometer:
    13,528
    Location:
    Central Ohio
    What is it that you want to weld?

    You pretty much get what you pay for, even with small welders.
    #2
  3. Giggity

    Giggity ..........

    Joined:
    Aug 25, 2005
    Oddometer:
    770
    Location:
    Longmont, CO
    Nothing in particular. More to just learn on and mess around with.
    #3
  4. Schlug

    Schlug JockeyfullofBourbon

    Joined:
    Jan 23, 2006
    Oddometer:
    8,213
    Location:
    put something on and stay in that position.
    It's a junkie, disposable welder.

    If your're planning on tinkering around on a junkie, disposable level, buy it, get something decent when your ready to glue two pieces of metal together that you're going to count on.

    Were it me, I'd be looking for a used quality welder.
    #4
  5. tommymerle

    tommymerle advwanabee

    Joined:
    Apr 28, 2009
    Oddometer:
    437
    Location:
    frozen north (Lutsen, Minnesota)
    Get a good quality used welder. You will only be frustrated with trying to learn on a piece of junk. Craigslist, e-bay and pawn shops are a good place to start. Look for a beginning welding class at a community school first.

    These are my opinions, if you don't like them I have others.
    #5
  6. Giggity

    Giggity ..........

    Joined:
    Aug 25, 2005
    Oddometer:
    770
    Location:
    Longmont, CO
    I actually like those opinions.:1drink Just this morning I found a Lincoln tombstone AC/DC on c-list for a screamin' deal. It's now in my garage.
    #6
  7. _cy_

    _cy_ Long timer

    Joined:
    Sep 25, 2011
    Oddometer:
    6,504
    Location:
    Tulsa, Oklahoma
    a Lincoln Idealarc 250amp AC/DC Tombstone is one of the finest welders ever made. butter smooth arc that compares nicely to SA200 pipeliners. arc is plenty stable enough for TIG.

    add a high freg box to TIG aluminum

    [​IMG]
    #7
  8. Giggity

    Giggity ..........

    Joined:
    Aug 25, 2005
    Oddometer:
    770
    Location:
    Longmont, CO
    cy - Holy shit! Is that the one Noah used to build the ark? It's awesome!

    Please tell me more about how to set up to TIG aluminum.....
    #8
  9. _cy_

    _cy_ Long timer

    Joined:
    Sep 25, 2011
    Oddometer:
    6,504
    Location:
    Tulsa, Oklahoma
    one needs AC and high frequency for TIG on aluminum.

    machine you initially posted about is a 110v DC welder rated at 90 amp at probably a 10% duty cycle. most 110v welders have low duty cycles at under 100amps. there are a few exceptions, but not many. most of those start at $1,000.

    learning to weld ... best to stick to a basic DC stick welder and MIG.
    MIG is the easiest to weld with, but there's a danger of getting cold welds. meaning a pretty bead on top with little to no penetration.

    better to stick with MIG that comes with shielding gas. much cleaner results. core flux wire can also be used with good results.

    much better to purchase an older used welder made by Lincoln or Miller. 220v single phase is what you need.

    if you find an old tombstone 250amp AC/DC welder like above ... jump on it... they sell typically for about $650. but they do pop up for less.
    #9
  10. _cy_

    _cy_ Long timer

    Joined:
    Sep 25, 2011
    Oddometer:
    6,504
    Location:
    Tulsa, Oklahoma
    what is it? pic's didn't show
    #10
  11. Giggity

    Giggity ..........

    Joined:
    Aug 25, 2005
    Oddometer:
    770
    Location:
    Longmont, CO
    [​IMG]
    #11
  12. Giggity

    Giggity ..........

    Joined:
    Aug 25, 2005
    Oddometer:
    770
    Location:
    Longmont, CO
    Sorry - was having difficulty posting pic. To much :freaky

    For those who didn't see the deleted post, I paid $150.
    #12
  13. _cy_

    _cy_ Long timer

    Joined:
    Sep 25, 2011
    Oddometer:
    6,504
    Location:
    Tulsa, Oklahoma
    that's an excellent machine! not a tombstone but still a good AC/DC welder with decent duty cycle.

    $150 is an excellent buy. you would have no trouble selling that for about $300 should you change your mind.

    chase down some rods ... note rods need to be kept dry after opening. professional welders will keep their rods in small ovens made specifically for welding rods.

    here's a good website to learn great welding info
    http://www.weldingtipsandtricks.com/
    #13
  14. Giggity

    Giggity ..........

    Joined:
    Aug 25, 2005
    Oddometer:
    770
    Location:
    Longmont, CO
    I always thought those were called tombstones. Shows I don't know much :eek1

    How big are these ovens? I've seen the tube containers in which to store rods. Are they acceptable?
    #14
  15. Giggity

    Giggity ..........

    Joined:
    Aug 25, 2005
    Oddometer:
    770
    Location:
    Longmont, CO
    .....oh yeah.... I get the email videos from tips and tricks whenever they come out. Jody is a cool guy!
    #15
  16. _cy_

    _cy_ Long timer

    Joined:
    Sep 25, 2011
    Oddometer:
    6,504
    Location:
    Tulsa, Oklahoma
    sealed tubes work good, so long as rods were dry to begin with.

    tombstone welders are Lincoln Idealarc rated at 250amp DC, 300amp AC. look at your label, it's probably rated for 225 amp AC and 150amp DC.

    you will get your best results on steel with DC setting. rod ovens veri in size. mine holds about 15 lbs. some will use a light bulb inside an ice chest or old frig to store rods.
    #16
  17. Giggity

    Giggity ..........

    Joined:
    Aug 25, 2005
    Oddometer:
    770
    Location:
    Longmont, CO
    Good to know. Thanks. Before I buy any rods I'll need to set up a 220 outlet in my garage. It'll be too much of a pain in the ass to pull the stove out and run an extension cord from my kitchen all the time.
    #17