disposable cylinders?


Old 02-21-05, 09:27 PM
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disposable cylinders?

another question, i heard something about disposable cylinders....those would be perfect for me so i can start MIG. anyone sell them?
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Old 02-22-05, 05:51 AM
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I've never heard of this.
The only disposable cylinders I am familiar with are propane, mapp and oxygen that can be used on those hardware store Bernzomatic torches.

Even if you could get them the cost would soon take the fun out of it.
The cu ft capacity of a disposable would kill you if they were available.

I was suffering from high leasing costs for my mig cylinders and went to Co2 because I already own several tanks from soda fountain systems.
Mixed gas gives a slightly nicer looking weld but Co2 is highly under rated in my opinion.
Considering that Co2 is a liquified gas, the contents of a small cylinder is quite large. Co2 also has better penetrating qualities.
I would estimate that my cost is about a third of what mixed gas would be.
Another bonus with Co2 is that you can use it while welding with flux core wire.
Most of my welding is outdoors and the Co2 vastly improves the appearance of flux core welds.
Old 02-23-05, 12:48 AM
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I remember seeing the disposable bottles maybe 10 years back.
They were the standard propane type bottles you see, but filled with I think C02.
They required a special regulator to screw on to the bottle.
I Think the bottles were only rated to 120 PSI.
The standard mig bottles are about 1800 PSI. argon/C02
Disposable bottles, If you can find any would not be good for learning to weld $$

If you can change the polarity on your MIG welder. you can use flex wire without gas.
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