We have an oxygen generator, which we picked up because our son is a
glass blower. He and I share studio space, because the kilns, torch,
venting and safety equipment all mesh well. My husbands wood working
shop (he has been afurniture maker for over 20 years and now builds
custom guitars) is across the hall from my studio.
The oxy generator we got was a refurbished medical device because
once they hit a certain number of hours, they have to be de
commissioned from medical use, but still have lots of good hours
left on them. We also have pressurized tanks, because the oxy
generator only does a small range of flame sizes well.
My pros are:
Never run out of oxygen
Paid for instead within a year, because our son can blow through a K
tank in6 hours on the large flame working torch. However, the oxy
generator can’tproduce this amount of gas to keep up with the large
torch, so he only usesit for delicate, or finishing work, or if he
runs out of tanks.
My cons are:
Does not work well with a #3 or smaller tip, and can be a little
erratic with other small tips because I find the pressure generated
changes as the unitfunction and it does not keep a consistent
pressure, so my torch blows out with small tips
It does work well with a small annealing rose bud torch.
Ours produces 5 litres/minutes, so I cannot use it with my large
annealing torch, need to switch to a tank for that.
I have to turn it off after each use, because if you let it run,
even for a couple minutes, with the torch off, the safety alarm
starts singing. This really isn’t a big deal, it’s just a pain,
because there is also a short delaywhen you turn the unit on, till
it creates pressure, and this just adds another step in the process.
If it was just me in the studio, I would use my Q tank, where I can
change the pressure to suit what tip or torch I am using, and since
my flame is not oxygen rich, like a glass blower uses, I don’t run
out nearly as often. So if I was the only one using the generator,
it would probably take closer to 5years to pay off.
But I always appreciate the fact that I have a back up plan in case
the tanks are all empty.