How can i increase amperage output in my 80 amp lincoln century mig/flux welder

[brhody1964]

I need to know what modifications i need to do to increase amperage from a 80
amp lincoln century mig flux welder. What can i add, replace or modify
internally in the welder to increase amp output?

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[et...@whidbey.com]

On Wed, 14 Nov 2012 14:18:01 +0000, brhody1964
<0f8503901d844703ee...@example.com> wrote:

>
>I need to know what modifications i need to do to increase amperage from a 80
>amp lincoln century mig flux welder. What can i add, replace or modify
>internally in the welder to increase amp output?
>
>--

It's actually pretty easy. Just jack up the cover and slide a more
powerful welder underneath. To not be so flip, the transformer in the
machine limits current output, so you would need to replace the
transformer to get more amperage out of it. And then maybe replace a
current sensor or heat sensor that shuts down the machine when it gets
too hot. And then maybe replace the cable and gun because the ones you
have now are designed for a lower amperage than you want. And the
rectifier might need to be upgraded also. You would be better off
selling it and buying a bigger machine. How much current do you need?
You might be limited by the power available. If you anly have a 120
volt circuit to plug into that limits your options to low current
machines. Do you have a torch? You can weld heavier sections by
pre-heating the metal. Harbot Freight sells a weed burner that works
great for heating up large pieces of steel or aluminum.
Eric

[Jim Wilkins]

<et...@whidbey.com> wrote in message
news:ddm7a855j76ag81li...@4ax.com...

> On Wed, 14 Nov 2012 14:18:01 +0000, brhody1964
> <0f8503901d844703ee...@example.com> wrote:
>
>>
>>I need to know what modifications i need to do to increase amperage
>>from a 80
>>amp lincoln century mig flux welder. What can i add, replace or
>>modify
>>internally in the welder to increase amp output?
>>
>>--
> It's actually pretty easy. Just jack up the cover and slide a more

> powerful welder underneath. ...
> Eric

I have an older Century MIG about that size. When I took it to welding
class the instructor demonstrated neatly joining 3/16" steel plates,
without preheat.

jsw

[Richard Smith]

Would it help / is it doable to turn the job so you are always welding vertical-up?
That's a way of getting penno and getting small welding sets to weld thick components...