Ok so I got this 5 horse compressor and want a 7.5 horse motor to run it but may upgrade so a 10 isnt out of the question im curious if I should find a old baldor or the like or get a amazon cheapo.I know where a 20 horse 3 phase is real cheap and its a baldor but I cant figure out a way to run it.Would a 30 year old baldor last longer than a 300 dollar amazon motor.
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which motor amazon/baldor
- Thread starter jbird5986
- Start date
Cruzan80
Well-known member
Yes, a baldor will last longer. Up to you if the price differential is worth it.
Why do you want/need more than a 5hp? Higher HP wont make the compressor faster or pump more air (within reason). Maybe going from a 5 -> 7.5 and swapping pulleys would get you to the max RPM on the pump, but 10-20 is just overkill for no reason.
Why do you want/need more than a 5hp? Higher HP wont make the compressor faster or pump more air (within reason). Maybe going from a 5 -> 7.5 and swapping pulleys would get you to the max RPM on the pump, but 10-20 is just overkill for no reason.
nadogail
Well-known member
You have not given me enough information to conduct a comparison of the cost and benefits of any of you options.
csp
Well-known member
Are you aware of the power requirements of 5hp vs 7.5 or 10?
what sort of power do you have available, volts & amps . that may determine your max HP .
also , normally pumps are rated for a typical HP & RPM range . adding more HP than the pump requires makes no improvements to air delivery .
also , normally pumps are rated for a typical HP & RPM range . adding more HP than the pump requires makes no improvements to air delivery .
HGRINC.comOk so I got this 5 horse compressor and want a 7.5 horse motor to run it but may upgrade so a 10 isnt out of the question im curious if I should find a old baldor or the like or get a amazon cheapo.I know where a 20 horse 3 phase is real cheap and its a baldor but I cant figure out a way to run it.Would a 30 year old baldor last longer than a 300 dollar amazon motor.
PugetDude
ALLIANCE MEMBER
You don't need a bigger motor, just larger PVC airlines.
Last edited:
nadogail
Well-known member
What is the OEM motor size?