Why is my air compressor not powerful enough to run my impact gun?

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9 Aug 2016
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12
Hello,

I hope I put this in the right forum but not many websites to ask this question on... I bought myself a Workzone 3HP 50 litre 14.5cfm max operating pressure 8 bar air compressor and also a impact gun rated at doing 1700nm loosening torque which I wanted to use with my air compressor but every time I go to use the gun, it sounds like it has no power. Runs fast when not opening the bolts but when opening a wheel bolt, it sounds like it is struggling/not getting enough power.

I messaged the seller thinking it was a faulty gun but they told me it is because my air compressor cant handle it and the gun is perfectly fine... Now although they gave me a small discount out of good will, I would still like to use the 1700nm torque it is offering so what am i doing wrong?

The gun specs


standard operating pressure 90psi
avg air consumption 6.cfm (170l/min)
air inlet size 1/4
air hose (ID) 3/8

my air compressor specs

Maximum operating pressure 8 bar
Air displacement 14.5cfm
Tank size 50litre

Going by the papers it seems like it should run it fine as my compressor does 8 bar and has a displacement of 14.5 whereas the gun requires 6? So what am I missing out? Granted the gun requires 3/8 hose whereas I am using a 1/4 hose however the couples on the gun are 1/4 any way and the seller has already told me it would make no difference using a 3/8 hose as it is the compressor that I need to change. So could someone tell me what exactly I need to look at when buying another compressor and why my current compressor cant handle the gun?


Thank you very much in advance.
 
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