Machining

Separate intermittent tool changes and clamping from blow-off and continuous uses. Describe the short peaks that an average meter reading can hide.

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Confirm with the equipment maker

Which machine tools, fixtures and auxiliary devices use compressed air?
Which uses are tool changing, clamping, blow-off or continuous process air?
What air volume or flow does the maker specify per cycle, with cycle rate and flow basis?
Which events overlap, how long do peaks last and what sustained demand remains?
What minimum pressure is required at the most distant machine and at critical clamps?
What pressure dew point, filtration and oil limits are required by the machine maker?
What existing receiver volume, pipe dimensions, observed pressure changes and backup are documented?

A cycle-average flow is not the instantaneous flow during a tool change or blow-off.
A local pressure problem is not proof that the whole plant needs a larger compressor.