Answer
Aug 29, 2024 - 04:49 AM
To figure out how much air you need, you have to determine how many people will be using air at one time and what they are using. You can figure roughly 4-5 CFM for impacts up to 1/2", 3/4" and 1" take a lot more. If there is any sanding, grinding or painting, you want to allow at least 15 CFM for each of those. Once you calculate total CFM required, you need to add 25% to that for a piston type compressor or with a rotary xxxx , make sure it delivers at least that much. Here is a guide I put together that may help.
https://www.compressorpros.com/sizing...
https://www.compressorpros.com/sizing...
