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How to Make a CO2 Laser Tube?

Views: 2     Author: Site Editor     Publish Time: 2025-09-03      Origin: Site

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“How is a CO₂ laser tube made?” Is it simply about filling gas into a glass tube? Of course not. Manufacturing a CO₂ laser tube involves physics, engineering, and highly precise production processes. Inside the glass tube lies a mixture of gases—primarily carbon dioxide, nitrogen, hydrogen, and helium. When high voltage is applied, these gases become excited and release photons. The photons then align, amplify, and ultimately form a laser beam—powerful enough to engrave and cut materials with precision.


Step 1: Choosing the Right Glass Material

The first step in making a CO2 laser tube is selecting high-quality borosilicate glass. The tube must handle high voltage and thermal stress without cracking. This is where factory capability matters. A professional CO2 laser tube manufacturer like Puri Laser uses refined glass tubes with strict tolerance control. Without strong glass, the tube fails quickly under real industrial use.


Step 2: Electrode Design

Inside the laser tube, electrodes supply energy to the gas mixture. Copper or aluminum electrodes are used, carefully sealed into the glass. A poor electrode design leads to unstable discharge and short lifespan. At Puri, the electrode design is optimized to support stable discharge and reduce energy loss. This is why buyers searching for a reliable CO2 laser tube factory focus on electrode quality.


Step 3: Gas Filling Technology

The gas mixture is the heart of the CO2 laser tube. The ratio of CO2, N2, He, and sometimes Xe or H2 affects both efficiency and lifespan. Precise gas filling requires vacuum technology and sealing machines. Puri Laser has over 16 years of manufacturing experience, with its own catalyst technology that slows gas degradation, making tubes last 8,000–12,000 hours. Many small suppliers skip this step, which explains why their tubes decay faster.


Step 4: Sealing and Catalyst Application

After gas filling, the tube must be sealed airtight. A small leak reduces performance dramatically. Some manufacturers also add catalysts inside the tube to reduce CO2 decomposition. Puri has specialized sealing machines and proprietary catalyst coating, giving their CO2 laser tubes a longer working life than most market options.


Step 5: Quality Testing

Every CO2 laser tube must be tested before shipping. Key checks include:

Beam mode and spot quality

Power output vs. rated wattage

Cooling efficiency under water circulation

Power stability over continuous use

A professional CO2 laser tube manufacturer doesn’t skip these steps. At Puri’s factory, each tube runs through multiple tests before packing. Buyers know they are not just buying glass—they are buying stable output and guaranteed performance.


Step 6: Packaging for Safe Transport

Making a CO2 laser tube is one thing. Delivering it safely across the world is another. Strong shock-proof packaging is critical. Puri Laser uses pearl cotton, thick cartons, and wooden cases for export shipments, ensuring tubes arrive with zero damage.


Why Factory Strength Matters

There are hundreds of suppliers offering CO2 laser tubes. But many are just trading companies. The difference comes from real factory experience. Puri Laser has been focusing only on CO2 laser tubes since 2009. With 16 years of continuous R&D and production, Puri has become a trusted partner for laser engraving machine manufacturers worldwide. Stable supply, consistent quality, and factory-direct service make the real difference.



So, when you ask how to make a CO2 laser tube, the answer is clear: it requires strong material, advanced gas technology, precision sealing, and real factory testing. And not every supplier can do this consistently.

If you’re looking for a CO2 laser tube manufacturer you can trust, Puri Laser is here to help. 

With 16 years of production experience and a global client base, we supply reliable, long-life tubes that keep your machines running.

Contact us today for pricing, bulk orders, or OEM service. Send us your inquiry now — let’s build long-term cooperation.


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