Air Pressure Chart

Helping Unite The Industry

AIR PRESSURE

Sandblasting Data

Approximate Air Consumption (CFM) per sandblast nozzle with Sand/Air mixture.

Nozzle          60PSI    70PSI        80PSI   90PSI        100 PSI

Size

1/8”                      14cfm            15.5cfm             17cfm          18.5cfm               20cfm

3/16”      30cfm     34cfm        38cfm   42cfm                48cfm

1/4"       55cfm             72cfm               78cfm           84cfm         90cfm

5/16”      90cfm            105cfm             120cfm         135cfm               150cfm

3/8”       126cfm           145cfm             163cfm         182cfm               200cfm

7/16”                    170cfm            193cfm             215cfm         240cfm              260cfm

1/2"                      230cfm           260cfm             290cfm         320cfm               350cfm

Air volume and pressure are very important. Maximum blasting production is achieved by obtaining as close to 100 PSI of air pressure at the blasting nozzle as possible. The National Association of Corrosion Engineers data suggests that 1 ½% of production is lost for each pound of air pressure below 100 PSI at the nozzle. Small conventional sandblasting units can drop up to 12 lbs or 18% of the blaster’s capability due to air constriction.

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