Wandering around on the net I found this article about a user of a compressed air dryer for a Plasma Cutter.
CNC refers to it being “computer numeric controlled” I believe, which is how the CNC cutter is programmed to make the cuts required.
On this type of equipment it’s almost mandatory to have an air dryer that removes both free water and water vapor from the compressed air stream.
Lot’s of information about treating compressed air can be found here, and this is the link to the article on the Harbor Freight compressed air dryer.
