When choosing Air Compressor For Laser Cutting compressor you need to consider if it can constantly provide desired pressure and level of air. Little airbrush compressors little compressors boast impressive pressure figures but really poor flow rates enough limited to airbrush pistols. Actually if small compressor can push enough air it will likely overheat in short while.

Our laser cutter came with small membrane pump (Smallest upon the picture), I really do not know what specifications it has but stream of air was extremely weak. It is adequate if all you have to to do is engrave, although also then we got considerable smoke traces around engraved picture.

it was rated for level of ~2.4cfm and had a 1 gallon container which can be filled to 58 PSI. It were able to give us continuous 1 bar (14 PSI) of pressure, but it had to operate on a regular basis and overheat badly within five minutes.

Third and current compressor we got was 6cfm rated belt driven device with 13 gallon tank which is filled to ~100psi. With this unit we can run at continuous ~2bar (31psi) without fear of overheating since compressor engine is not on continuously. Using reserve air in tank we are able to also push up to 3.5bar (50psi) for brief jobs.

The best setup for me will be compressor rated to >6cfm, huge 70+ gallons tank rated to 10bar (140psi) and software air control via solenoid valve.