laser tube price

One issue that the owners of these devices must eventually confront is that the CO2 laser tube such a machine often contains will eventually need to be replaced.

Comparing CO2 Gas Tubes for Laser Machines

Carbon dioxide, CO2, gas laser tubes produce the most powerful continuous laser that is currently possible. Technology advances quickly, so that may not always be the case, but it is for now. This type of tubes are also highly energy-efficient. Most laser cutting and engraving machines operate with one of two different types of tubes.

Different Processes

Both types create a powerful and invisible laser, the difference lies in the mechanism used to excite the right atoms within the gas mixture. The mixture is typically a combination of carbon dioxide, hydrogen, nitrogen, and helium. Direct current (DC) tubes utilize electricity to excite the atoms, resulting in a laser beam.

Radio frequency (RF) tubes excite atoms with radio signals. This produces a pulsed laser that repeats so quickly, the beam is continuous. These are metal tubes, opposed to the glass DC tubes. A couple of other differences include durability and laser tube prices.

RF tubes are expensive, and last a long time. The price is worth it to large manufacturing factories, automotive facilities, and industrial plants. Productivity rates remain high because there is less down time spent replacing tubes. The DC ones are much cheaper, but have to be replaced four times more often. These are ideal for smaller machines that are used by small businesses and individuals.


The power generated by tubes depends on wattage. The desk top and compact models usually are designed to be low wattage machines of two to seven watts. This allows thinner materials to be cut and engraved without burning or damaging materials. Larger machines can handle high levels of wattage because they are equipped with interior cooling systems.

They are also designed to cut thicker blocks or sheets of materials, such as wood a d metals. It is not uncommon to find a 100 watt CO2 laser tube in a commercial sized machine. Cutting machines rarely have tubes higher than a 150w laser tube. The highest wattage laser tubes can withstand is one-thousand watts.


Safety is imperative when working with lasers of any strength. The laser beam is dangerous if misdirected. Wrap around laser safety glasses are essential for protection. It is not enough to wear glasses that protect the eyes from only the front. Turning the head while operating a laser exposes the sides to the radiation emitted from the machine.

Guarding against electric shock is important as well, especially with higher wattage. Recommended precautions are included in training on machines. They are also detailed in the operations manual for reference.