Oxygen or N2 pressure for Co2 laser

[oljeg]

I have 130 w Co2 Chinese laser
how big pressure I need on output bottle Oxygen or N2.

Thanks.

[KTP]

why would you use Oxygen or Nitrogen assist gas? That is going to get expensive in a hurry! Get an air filter/dryer and just use regular compressed air. 10 to 30 psi is what I use when cutting woods and some plastics.

You could use Oxygen to cut thin steels if a 130 watt chinese laser will do that. Is it a dc excited glass tube laser? I was not aware that they made those larger than around 100 watts...and even then I didn't think the 100 watt versions really did 100 watts (or not for very long).

If it is some new RF excited 130 watt Chinese laser I am very interested to hear where you got it, and how much they sell for?

[MacGyver]

Originally Posted by KTP If it is some new RF excited 130 watt Chinese laser I am very interested to hear where you got it, and how much they sell for?

You and me, both! The Chinese are quite adept at copying even the most technologically advanced toys, so you would think they could combine their knowledge of microwaves and sealed CO2 lasers with a US-based design and make it on the cheap. I'd love to get a hold of a $1k RF-excited laser tube.

[lamicron]

I have received a chinese quote a few months ago, offering 60W RF laser for 8000 hours at $ 5000 or $7000 ( have to check where that email is), it looks too much money for that amount of hours....

[MacGyver]

Bah... that's a horrible price. I can pick up a used laser for several thousand less, have it refilled for $1k, and still come out ahead. If someone shows me a 60W RF-excited laser for under $2k I'd be all over it.