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dpb dpb is offline
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Default impact wrench and air compressor

Blattus Slafaly wrote:
wrote:

....
...1.5hp 4-gallon @90psi air compressor. ...

....
Your compressor may give you 30 seconds of impact wrench time ...


Well, 4gal -- ~0.5cu-ft and a typical 1/2" impact wrench will need
roughly 5 cfm@90-100psi (I was thinking of the big 3/4" jobbie earlier
needing almost 9). So, not accounting for any losses at all would be
about 1/10th of a minute (6 sec) and poof!--tank's empty.

I really doubt if he'd get it to spin up to speed even, what more
actually make an effective impact.

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