If it is a 11cfm compressor then it produces 11.8 cfm of air regardless of the pressure
pressure has nothing to do with cfm but with the restriction to air flow
for example the tire inflator -air hawk- has a very small cfm but as the tire restrict the air flow the pressure builds up to set pressure on the gauge
so if you want 100psi from the 11.8cfm unit just adjust the pressure switch to shut off at 100psi
Cfm is only important when using air tools as a compressor that is not capable of maintaining the cfm thereby the pressure to run the tools is not a good idea
as an example
a sand blaster that uses 11.8 cfm at 100 psi will not work on your compressor
that unit will require a 20cfm compressor to run it peoperly
Ok so for example. I need 8 to 10 cfm at 100 psi to run my graco spray rig. Would the 11.8 cfm 175 Max psi compressor be sufficient?
the 11.8 cmf at 100psi will run the spray rig
you will not be spraying at 175psi as paint sprayers operate efficiently at around 65 psi or lower
running a compressor at higher than 120psi reduces the service life considerably
If you are pumping paint ( airless spray gun ) the pressure is up to 1500psi but it is not a compressor operation but a gear pump that is producing the flow to generated the pressure
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SOURCE: Air compressor motor stalls under pressure
this sounds like a bad pressure switch.if the unit is not shutting off at the same pressure each time this would be the cause.2 if the pressure is not unloading the air pressure on the compressor side of the unit it will cause the unit to struggle when it starts a cycle because the piston is under a load .how this works is say the unit starts from 0 psi when it get to the desired pressure you have it set on the unit kicks off . the other adjustment most units have on them is what pressure to cycle back on.so when the unit reaches say 100 pounds ,it kicks off and bleeds the air off the compressor side so when it starts back up it wont start up with pressure on the piston.
SOURCE: I have a small central pneumatic air compressor it
Most of the time the air flow rating for the air tools you are trying to use are rated higher than your unit, Check the lable on the tools and compare to your compressor, otherwise you have have some type of restriction in the air line or within the tool itself. Hope this helps.
SOURCE: oil free rigid air compressor will not get above
THESE HAVE TWO COMMON PROBLEMS. FIRST IS THE SMALL LINE FROM THE COMPRESSOR TO THE CHECK VALVE ON THE TANK LEAKING. OFTEN IT IS DAMAGED WHEN THROWING THE THINK IN THE TRUCK. THE OTHER PROBLEM IS THE TEFLON SEALING RING ON THE PISTON. AFTER SO MUCH USE IT SIMPLY WEARS OUT AND MUST BE REPLACED. I THINK IT IS A PISTON/ROD/SEAL RING ASSEMBLY, ALL ONE PIECE.
SOURCE: What horse power is required for producing 16.9
You are looking for about 5 H.P. to do that, but what is more important is the r.p.m. of the motor, the size of the pulley,,, and the size of the compressor pulley! most manufactures will spec the pump for certain horse power,,, they go hand in hand,,, for example you cannot take a pump designed for 5 H.P. and hook a 10 H.P. motor and a bigger pulley on it and spin the pump faster to make more air,,, it wont take that high of speed,,, I hope this helps.
SOURCE: Hello , i found an awesome deal on the internet
Too small,on CFM
If your spending less than $400 to 800,forget it
I had a Campbell Hausfeld for 30 years,with 20 gallon
I replaced it with an upright,30 gallon
I do not use an impact on wheel nuts,ever,and I use a torque wrench set at 80# going on.
That has worked for me,damage free for 35 years.
What kills the air,is the air chisel and worse,the cut off tool,which you will use the most.
Make sure what ever you get, uses oil,the oil less units last about 3 years.
Two stage is best,but I still have a single
Has to be wired for 220 volt,unless you like paying the electric bill
So hope you have circuit breaker and 1900 box branch circuit wiring experience
Forget the gas engine,unless your going on the road every week
You need about a steady 100# to really run any air tool--so that translates to about 10 CFM,little pricy
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