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Thread: Wire gauge of HF MIG 170 OEM torch

  1. #1
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    Wire gauge of HF MIG 170 OEM torch

    Does anyone know the gauge of the power wire used in the standard mig gun? I'd rather not rip it open to find out it's not printed on the wire.

  2. #2
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    Re: Wire gauge of HF MIG 170 OEM torch

    Most mig gun power cables have no jacket on them to tell you the amperage rating. It's all about how many copper strands and the strand diameter. Most will handle 150 amps just fine and more if you don't mind the torch getting hot. The 170 probably has a 180 amp power cable inside. There are other things you can do to cool the Gun if that's the issue.
    Thermal Arc 320SP ( Lorch )
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    Victor Gas Apps.
    Boxes and boxes of welding crap.

  3. #3
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    Re: Wire gauge of HF MIG 170 OEM torch

    I have one and looks like 6 gauge like ground.

    I replaced my ground with a 4 gauge but lift gun as is

    The duty cycle at 100% is about 50 amps so a 6 gauge will work.

    The wings will handle more but other parts will not handle more at 100%.

    Dave

    Quote Originally Posted by JC_Phoenix View Post
    Does anyone know the gauge of the power wire used in the standard mig gun? I'd rather not rip it open to find out it's not printed on the wire.
    Last edited by smithdoor; 01-03-2020 at 06:45 PM.

  4. #4
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    Re: Wire gauge of HF MIG 170 OEM torch

    Here is a chart for duty cycle for the Harbor freight 170

    Dave

    Duty cycle at. Amps

    100% @ Amps 49
    97% @ Amps 50
    67% @ Amps 60
    60% @ Amps 64
    49% @ Amps 70
    38% @ Amps 80
    24% @ Amps 100
    20% @ 110 amps
    17% @ Amps 120
    12% @ Amps 140
    9.5% @ Amps 160


    Quote Originally Posted by JC_Phoenix View Post
    Does anyone know the gauge of the power wire used in the standard mig gun? I'd rather not rip it open to find out it's not printed on the wire.
    Last edited by smithdoor; 01-03-2020 at 06:59 PM.

  5. #5
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    Re: Wire gauge of HF MIG 170 OEM torch

    Thanks for the input. The torch says "TT 180" on it, so I'm assuming it's either the same as the one on the 180 machine, or is rated for 180A, or perhaps both. Seems like a better quality torch gun would be a better focus for upgrade, then.

  6. #6
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    Re: Wire gauge of HF MIG 170 OEM torch

    Quote Originally Posted by JC_Phoenix View Post
    Thanks for the input. The torch says "TT 180" on it, so I'm assuming it's either the same as the one on the 180 machine, or is rated for 180A, or perhaps both. Seems like a better quality torch gun would be a better focus for upgrade, then.
    You find new guns 10 foot long and greater gauge. For under $50.00

    Dave
    HF 170 welder
    HF 4x6 band saw
    South Bend 9N
    Mill
    B&D mag drill
    Victor torch

  7. #7
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    Re: Wire gauge of HF MIG 170 OEM torch

    The first owner of my MIG-180 upgraded it to a 10 ft gun. I'm not sure adding a longer cable was an improvement because the motor isn't very strong.

    I keep the welder on a little dolly near the floor with the cable laid straight over to where I'm welding, to get smooth wire feed. The welder up on my workbench with the cable draped to the floor didn't work very well.

    I wouldn't spend the money on a longer cable unless the gun is unsatisfactory and you really need to upgrade that.

    These black HF welders just are what they are, sufficient but not the equal of a more expensive unit. I think throwing more money at it would be better spent on HF's later models or on a used commercial-grade unit.

    I'm cheap, I'll stay with my $50 MIG-180 for my occasional farm repairs. Everything I've ever welded has stayed welded. 'Good enough for the girls I go with'.
    HF MIG-180 with all the mods.
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  8. #8
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    Re: Wire gauge of HF MIG 170 OEM torch

    I keep mine my it works great.
    Odd's are the will work very good.
    There are 6 foot guns too.
    If I replaced my gun it would be 10 foot long.

    Dave

    Quote Originally Posted by California View Post
    The first owner of my MIG-180 upgraded it to a 10 ft gun. I'm not sure adding a longer cable was an improvement because the motor isn't very strong.

    I keep the welder on a little dolly near the floor with the cable laid straight over to where I'm welding, to get smooth wire feed. The welder up on my workbench with the cable draped to the floor didn't work very well.

    I wouldn't spend the money on a longer cable unless the gun is unsatisfactory and you really need to upgrade that.

    These black HF welders just are what they are, sufficient but not the equal of a more expensive unit. I think throwing more money at it would be better spent on HF's later models or on a used commercial-grade unit.

    I'm cheap, I'll stay with my $50 MIG-180 for my occasional farm repairs. Everything I've ever welded has stayed welded. 'Good enough for the girls I go with'.
    HF 170 welder
    HF 4x6 band saw
    South Bend 9N
    Mill
    B&D mag drill
    Victor torch

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