Flux core Welder conversion

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davegt27

Well-known member
I have a small Lincoln 125 flux core welder that I am going to convert to gas, it can use up to .035 flux core wire

So when I started the conversion I bought .035 tips and .035 wire, now some are saying not to go over .030 when you do a conversion but they don't say why


Just wondering if anyone knew if it’s ok to use the .035 welding wire (non flux core) and .035 tips


Thanks in advance

Davegt27
 
What are you going to be welding? If you are doing sheet metal the .035 will need too much heat and likely burn through. The wire should be sized according to what you are welding. Also, be aware that at the higher heat settings needed for the .035, your duty cycle will be shortened.
 
The first task is to weld on the cage footings
(I have an Autopower cage that has been welded in but I noticed the rear footings could be better)

Then I need to weld up a cage for the fuel cell

David
 
0.030 should be OK for 1/8" plate. Part of the problem is that 0.035 wire takes quite a bit of heat, and a little 125 welder has a hard time lighting a fire that hot.
I've been using a Lincoln 135 for several years and 0.030 is what sits in the machine. I've run 0.035 for some 3/8" thick plate, but I had a hard time getting the penetration needed. To get enough heat, I had to run the feed speed so slow that it would just drip molten metal into the weld or it would get sloppy when I turned the feed up enough.
 
Ha ha they got me ha ha my welder can’t be converted to gas

I was told at Lowes that it could the book even talks about it

It has a gas hose in the machine

Yep Lincoln welder I will have remember this company

I will have to rig something up with a relay probably, use the drive motor input and then to a relay to turn on the 120v I need to activate the gas solenoid



davegt27
 
strange. the older ones did, and my 135 does. I think I now remember a smaller unit that didn't have a gas option though..
I'd take it back and yell at them if it wasn't too long ago.
 
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