I need one for another purpose and those things are beefy
They’re pretty great.
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also, consider the cloudline ac infinity for a quieter solution. these inline axial fans take a bit longer to spool up than a cap start ac motor, but they are super quiet, easy to maintain, and move a lot of air. i have some specs and links here:
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The problem with inline fans is that their CFM ratings occur at very low static pressures, much less pressure than seen in a laser system (especially the thunder lasers with a small and very restrictive ventilation grate). In practice, you won’t be able to achieve close to the same CFM or ventilation performance compared to a high power centrifugal blower. This is why the expensive laser companies like ULS and Epilog recommend 1-2 HP blowers instead of the cheaper, quieter inline fans (the one linked is ~0.1HP).
Since switching from a lower airflow setup to our high power setup with individual dampers we noticed less build up of spot and tar on the machines at our regular cleanings and optics that last longer and don’t require such constant cleaning. It’s also cool to watch all the fumes stream out of the cutting area instead of slowly meandering away like before.
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