Astro 110 Mig Welder Manual
From my other post about a 110 v welder. I decided a mig gas welder will be better than a flux core for my auto body sheet metal repair. One turned up on CL yesterday. I went to take a look at it. The guy was having trouble getting the wire feed to work. Then the regulator didn't work. So he said take it, I just want it gone.
I gave him 20.00 and left. I didn't want him to think I was looking for a hand out. The wire feed problem was a dirty feed roller assy. The regulator is bad. Now I wonder if anyone has a Astro welder? I would like to find a manual.
Next question: should a mig welder set up for gas, use all argon, a mixture of argon and CO2, or all CO2. The bottle didn't come with the welder. Thanks for any info. You can use any of the three gases that you mentioned. Co2 is the cheapest, gives alittle more penetration than argon but not much if noticeable atall. Co2 bottles are used in every restraunt for soda dispensing. They are cheap because of that.
Astro Mig 110 Welder Owners Manual
I use co2 all the time it works great. Argon is the only gas for welding aluminum. Helium also works but costs more so disregard that. Not regulators.
Can be had on ebay for about $20 Your new welder can also use flux core wire. Just turn off the gas. For thin sheet metal work I prefer 75/25 argon/CO2 gas as it tends to give somewhat softer arc with less penetration than straight CO2 gas. It also leaves less spatter, probably due to the softer arc. Pushing the bead rather than dragging the will also result in a bit less penetration and a wider flatter bead, usually these characteristics are desirable to prevent over-penetration. Not sure if this will be an issue with your machines output and the fact that long beads are not usually done on body panels. It's all about the technique.
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Practice a bit on similar gauge metal first. I believe your machine is an Italian product that was sold by Astro Pneumatic but is no longer carried by them so you may want to contact them at the link below for a possible lead on a manual. Not sure but I would suspect your machine was probably sold and labeled under various names so do a bit of a search to find a similar machine. It may be identical to yours except for color.