Equipment for refilling CO2 laser tubes

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11-14-2006, 02:34 PM
Tatiana

Equipment for refilling CO2 laser tubes

Maybe anybody can help me?
What equipment is used for refilling CO2 laser tubes (for example Coherent)?
Thank you!
06-20-2007, 06:50 AM
EverythingCNC

Does anyone know the gas composition of a sealed CO2 laser tube?
06-20-2007, 07:00 AM
MonoNeuron

Hi, Unless you have a huge amount of money you aren't going to get by with anything out there on the market. Lindy in Australia supply CO2 laser gas but it is for a flowing gas laser and not a sealed one. The gas mixture is a closely guarded secret from the manufacturers like Coherent, Synrad, Telesis etc so you won't be getting any of that unless you have one of their lasers and send it back to them for reprocessing.
These companies don't just replace the gas. They also replace the optics and realign and reset everything and clean out any built up debris (or so I am led to believe)
It's easier to send it back for re-gassing and pay the $700 or so and get another 30-40 thousand hours out of them.
06-25-2007, 05:12 PM
Laser Doctor

I would recommend sending your tube to Photovac Laser in Grove City, Ohio. To start filling your own tube is unreasonable. Not only due to the extensive cost of the equipment, unknown gas requirements, fill pressure, cleanliness, leak testing and other unkown variables, power supplies, optics, electrode condition etc...

The Laser Doctor
06-26-2007, 02:42 PM
Laser Doctor

Laser Gas Mixtures

Quote:

Originally Posted by EverythingCNC

Does anyone know the gas composition of a sealed CO2 laser tube?

Laser gas mixtures are highly confindential to most businesses. They have spent 10's of thousands of dollars figuring out the right mixture for there particular laser tube.

You can always use a basic mixutre of Co2,N2 and He. Say 4.5%co2, 15% N2, and the balance Helium. There are other catylists and inhibitors to recombine the Co2 gas molocule back together again from it's 03 and 04 state.

You can see from a past posted video of a bad laser tube, the effect of non-recombination and mistaken gas recipes. I would think you would want a tube that lasts for years and years and not one you replace every three months. If your a hobbyist, it may make sense to get a new tube every few months. I think the shipping costs, cost of the tube, duty costs and down time wouldn't be worth it. Not to mention if the tube breaks during shipment and the shipper doesn't pay the insurance, like most don't.

Thanks

The Laser Doctor
06-26-2007, 02:55 PM
Laser Doctor

Quote:

Originally Posted by MonoNeuron

Hi, Unless you have a huge amount of money you aren't going to get by with anything out there on the market. Lindy in Australia supply CO2 laser gas but it is for a flowing gas laser and not a sealed one. The gas mixture is a closely guarded secret from the manufacturers like Coherent, Synrad, Telesis etc so you won't be getting any of that unless you have one of their lasers and send it back to them for reprocessing.
These companies don't just replace the gas. They also replace the optics and realign and reset everything and clean out any built up debris (or so I am led to believe)
It's easier to send it back for re-gassing and pay the $700 or so and get another 30-40 thousand hours out of them.

Dear MonoNeuron:

You hit it right on the head. Many times laser tubes have many other problems than just regassing. Optics, electrodes, leaks, warpage of the laser bore, contaminants of the gas are a few. Regassing costs typically from $750 for small tubes to $1200-$1500 for large tubes. I know a one or two really good companies that do this. One is in Ohio and one is in California.
06-29-2007, 06:38 PM
carltonbcool

you could try submersing the tube upside down in water then injecting the gas into it with a needle. it will be contained inside the tube because of bouyancy. then you would either have to seal it underwater. we used this in science class to fill tubes with certain gas or certain amounts.....but they weren't lazers. it should work though.
06-29-2007, 07:52 PM
Laser.Tech

Quote:

you could try submersing the tube upside down in water then injecting the gas into it with a needle. it will be contained inside the tube because of bouyancy. then you would either have to seal it underwater. we used this in science class to fill tubes with certain gas or certain amounts.....but they weren't lazers. it should work though.

Uhhh....no. It wouldn't work. For too many reasons to list. (chair)

Brent
06-29-2007, 09:13 PM
Laser Doctor

This won't work.

The Laser Doctor
07-09-2018, 01:05 AM
sinfocomp

Re: Equipment for refilling CO2 laser tubes

Quote:

Originally Posted by EverythingCNC

Does anyone know the gas composition of a sealed CO2 laser tube?

After many $$$ and almost 3 years investigation and experimentation i have a working laser regas service setup in Mexico for both RF and DC (yes chinese lasers too)
08-02-2018, 03:57 PM
giacc

Quote:

Originally Posted by sinfocomp

After many $$$ and almost 3 years investigation and experimentation i have a working laser regas service setup in Mexico for both RF and DC (yes chinese lasers too)

Hi. I am located in Mexico. How may I contact you?
12-09-2019, 05:43 AM
Chicano5

Hola, puedo saber dónde se ubica o información de contacto
Saludos
12-09-2019, 06:11 AM
sinfocomp

Quote:

Originally Posted by giacc

Hi. I am located in Mexico. How may I contact you?

WhatsApp +52-668-214-5780
12-09-2019, 06:12 AM
sinfocomp

Quote:

Originally Posted by Chicano5

Hola, puedo saber dónde se ubica o información de contacto
Saludos

Tlaquepaque jalisco WhatsApp +52-668-214-5780
11-02-2021, 01:49 PM
yagm

Re: Equipment for refilling CO2 laser tubes

Quote:

Originally Posted by sinfocomp

After many $$$ and almost 3 years investigation and experimentation i have a working laser regas service setup in Mexico for both RF and DC (yes chinese lasers too)

Hello

I am continuing as a master student in Turkey in Photonics/Optics Department. I want you to ask for CO2 laser tubes gases and what materials have needed? Can I contact your mail? I've sent you a message via whatsapp but I could not find and could not send you.

Thank you

Kind regards
Yagmur
01-12-2022, 05:00 AM
cinematic2

Re: Equipment for refilling CO2 laser tubes

Quote:

Originally Posted by carltonbcool

you could try submersing the tube upside down in water then injecting the gas into it with a needle. it will be contained inside the tube because of bouyancy. then you would either have to seal it underwater. we used this in science class to fill tubes with certain gas or certain amounts.....but they weren't lazers. it should work though.

You can't even imagine what nonsense you are writing.