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Which CO2 laser tube do I need?

Which CO2 laser tube do I need?

Adam Sampedro |

Laser tube nearing the end of its life? Want to pack some extra punch to your output? Choosing the right size CO2 laser tube for your machine involves considering several factors. Here are the key aspects to keep in mind:


Power Requirements

Different materials require different power levels to engrave or cut effectively. Thicker materials generally need more power, and engraving usually requires less power compared to cutting. Decide the primary use of your laser machine and the primary materials you work with.


Tube Length and Diameter

Make sure the laser tube will fit within the physical constraints of your machine. Measure the available space in your engraver to determine the maximum length and diameter of the tube. Many machines offer or can accommodate a DIY extension attachment for tubes longer than the original tube.


Laser Tube Power Ratings

CO2 laser tubes come in various power ratings, such as 40W, 60W, 80W, 100W, and higher. The "rated power" is the continuous power output that the laser tube is designed to produce under normal operating conditions. The "peak power" is the highest power output that the laser tube can produce for short periods. Running a laser tube at its maximum capacity continuously can reduce its lifespan. It's often better to choose a higher power tube and run it at lower settings to prolong its life.


Cooling Requirements

Higher power laser tubes generate more heat and require more efficient cooling systems. Ensure your engraver's cooling system can handle the heat output of the chosen tube. Higher power laser tubes also require different power supplies, so keep that in mind when upgrading to a stronger laser.

Manufacturer Recommendations

Check the manufacturer’s specifications and recommendations for your specific machine model. They often provide guidance on compatible laser tube sizes and power ratings.


Usage Frequency

For heavy, professional use, a higher power tube may be necessary. For occasional, hobbyist use, a lower power tube might be sufficient and more cost-effective.

As you can see, there is not necessarily a one-size-fits-all solution for your machine when it comes to CO2 laser tubes. An 80W machine may be able to use a 75W or 90W rated power tube, but the factors above determine which is better for your engraving and cutting needs. Our sales team is also available to help you choose the right product for you.

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