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  1. #1
    Join Date
    Feb 2007
    Posts
    5

    Default tig machine on stainless



    I need a little help figuring this out. I want to buy an inverter tig but unsure if the 150 amp machines can do the job. Sure would be nice to save $750-$1500 and not go bigger (200) on the machine. The material is 304 stainless round bar. The picture includes a before and after shot. I've been doing this inhouse with the miller 210 mig, making two passes - one on each side. I would like to have a cleaner looking weld, as in the picture which was outsourced. As with the mig, it would be ok to make two passes. Load factors are not an issue. The 150 amp machines have all the bells and whistles I need, just not sure about having enough power.


    Thanks for the help. Tom

  2. #2
    Join Date
    Nov 2007
    Location
    Ontario, Canada
    Posts
    72

    Default

    I think a 150 amp machine would be stretched to it's limits on solid bar stock. (one inch, I presume?) I'd look around for a 200-225 amp machine.
    Dave

  3. #3
    Join Date
    Nov 2006
    Location
    Hampton, Va.
    Posts
    386

    Smile

    I weld stainless almost daily and have for nearly 32 years and I am positive a 150 amp machine will be more than enough to handle any job like you have pictured. I have welded 1 inch solid stock and did not use 150 amps.

    Good luck
    Wheelchair

  4. #4
    Join Date
    Nov 2007
    Location
    Ontario, Canada
    Posts
    72

    Default

    Thanks Wheelchair, that's good to know. I wasn't sure. I was thinking of the duty cycle of the machine.

  5. #5
    Join Date
    Feb 2007
    Posts
    5

    Default

    dang, forgot to mention it is 1/4-inch solid stock, close up shot with the camera makes it look bigger. Tom

  6. #6
    Join Date
    Jul 2007
    Location
    Otsego,MN
    Posts
    51

    Default

    Hello sir, 150 amps would be about 3 times what you would need for 1/4" round stock! it you dont forsee any bigger projects in the near future i would go with the 150 machine, if you start getting into aluminium then bigger might be better.

  7. #7
    Join Date
    Nov 2006
    Location
    toronto,ontario
    Posts
    90

    Default tjv senior

    hey tjv, i own a maxstar 140 s and a maxstar 150 both with the tig and they are awesome little portables with lots of juice.they will more than handle what you are doing in the pics with power to spare.i have done all kinds of work with them and they work great , i would suggest useing either 1 16 or 3 32 filler as i feel thats all you would need and it will make your welds look alot nicer.(ps i do an awful lot of stainless pipe from304 to 316l in tha nuclear stations and thats all you will need good luck

  8. #8
    Join Date
    Feb 2007
    Posts
    5

    Default

    thanks for the help. just ordered the maxstar 150 sth with tig package from BRwelding. ebay special with cylinder. tom

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