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  1. #1

    Default arc gouging/air arc

    Hey I'm new around here and find it very helpful. I was wandering what size welder you recommend for arc gouging

  2. #2
    Join Date
    Sep 2005
    Location
    Salem ,Ohio
    Posts
    3,913

    Cool

    Any big non inverter stick machine...Bob
    Bob Wright, Grandson of Tee Nee Boat Trailer Founder
    Metal Master Fab Salem, Oh 44460
    Birthplace of the Silver & Deming Drill
    1999 MM185 w/185 Spoolgun,1986 Thunderbolt AC/DC
    Spool Gun conversion. How To Do It. Below.
    http://www.millerwelds.com/resources...php?albumid=48

  3. #3
    Join Date
    Sep 2005
    Location
    northern NJ
    Posts
    1,858

    Default

    Minimum 250 amp stick non inverter. These will handle 3/16" carbons which is about as small as you want to go. Not for heavy duty use though.
    MM250
    Trailblazer 250g
    22a feeder
    Lincoln ac/dc 225
    Victor O/A
    MM200 black face
    Whitney 30 ton hydraulic punch
    Lown 1/8x 36" power roller
    Arco roto-phase model M
    Vectrax 7x12 band saw
    Miller spectrum 875
    30a spoolgun w/wc-24
    Syncrowave 250
    RCCS-14

  4. #4

    Default

    Thanks. I appreciate the input. I have a bobcat 250 and some people say you can and others say you shouldn't so I was just wanting other opinions.

  5. #5
    Join Date
    Sep 2009
    Location
    Canada
    Posts
    185

    Default

    250 amps minimum. Small carbons.
    500 amps preferably and larger carbons.
    Lincoln Idealarc 250 stick/tig
    Miller Bluestar 2E
    Thermal Dynamics Cutmaster 52
    Torchmate CNC table

    Ironworker Welder
    Operating engineer
    Owner/Operator Devlin Metal Works
    Custom CNC Plasma Cutting and Welding

  6. #6
    Join Date
    Sep 2005
    Location
    northern NJ
    Posts
    1,858

    Default

    When gouging do not set the machine at 100% (wide open). Set it like 85% so it has some room to fluctuate while not going over max.
    MM250
    Trailblazer 250g
    22a feeder
    Lincoln ac/dc 225
    Victor O/A
    MM200 black face
    Whitney 30 ton hydraulic punch
    Lown 1/8x 36" power roller
    Arco roto-phase model M
    Vectrax 7x12 band saw
    Miller spectrum 875
    30a spoolgun w/wc-24
    Syncrowave 250
    RCCS-14

  7. #7
    Join Date
    Dec 2012
    Location
    Simcoe Ontario
    Posts
    91

    Default arc gouging/air arc

    A big rental one.

  8. #8
    Join Date
    Apr 2009
    Location
    Oswego IL
    Posts
    654

    Default air arcing does not heart the machine!

    Would people stop pushing the idea that air arcing hurts machines, i have air arced off every machine i have owned, and i air arc a lot. Also as for bad for invertors, my maxtron 450 i had for 10 years, i ran about 150 boxes of 1/4 carbons through it, never had a probelm. Simply use the machine within its duty cycle and gouge away, what is the difference between 250 amps running large wire or an air arc electrode, other than cv vs cc current.
    Kevin
    XMT 304
    Miller Spectrum 625
    Miller 30a spool gun
    S22a
    Miller Legend 302
    Lincoln LN25
    Ford f450 Maintainer Srv Truck

  9. #9
    Join Date
    Apr 2009
    Location
    Oswego IL
    Posts
    654

    Default air arcing does not hurt the machine!

    Would people stop pushing the idea that air arcing hurts machines, i have air arced off every machine i have owned, and i air arc a lot. Also as for bad for invertors, my maxtron 450 i had for 10 years, i ran about 150 boxes of 1/4 carbons through it, never had a probelm. Simply use the machine within its duty cycle and gouge away, what is the difference between 250 amps running large wire or an air arc electrode, other than cv vs cc current.
    Kevin
    XMT 304
    Miller Spectrum 625
    Miller 30a spool gun
    S22a
    Miller Legend 302
    Lincoln LN25
    Ford f450 Maintainer Srv Truck

  10. #10
    Join Date
    Aug 2004
    Location
    Milan Michigan
    Posts
    1,724

    Default

    Tryagn5, I totally agree with you, I'm trying to figure out why I'm not suppose to air arc off my 2001 Pipe Pro 304 or my Approximately 2003 XMT 304.

    I run 1/4" carbons at 350 amps on a regular basis, ( A couple times a month )
    without a problem.

    Just like Tryagn5 said keep it within your duty cycle.

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