Quote:
Originally Posted by proton
which L/min oxycon would i need for a bigger torch?
oxy tanks would be an option too - easy to get but expensive?
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The issue is pressure, bigger torches need higher pressure than oxy-cons can push. You also need a surge tank, because when you turn the outer flame on bigger torches up, it will always use more oxygen than even a whole bank of oxy-cons can output.
There are commercial systems for this, Oxygen Frog and HVO are the two glass-focused companies. You can also DIY it with an oiless air compressor, a thoroughly cleaned 60 gallon air compressor tank (must remove all oils) and some piper fittings, valves, and such if you are technically inclined.
Buying/renting oxygen tanks is much cheaper up-front, but over time the on-site generation options do pay off, compressed tank refills are expensive (and time consuming unless you can get delivery).