Weekend Mig
Plastic
- Joined
- Nov 10, 2008
- Location
- Winnipeg, Manitoba, Canada
So, I hope I posted this in the right place...
What size motor (hp) do I need to run a 3-cylinder, single-stage compressor pump?
There is no stamp on the motor, but from what I can find on the web, similar pumps are usually called "4 or 5 HP" pumps - rated to run around 1200rpm. Does this mean I need a 5 HP motor to run it?
I bought this 60gal vertical compressor "used" of course. The existing motor is a Baldor 2hp running at 1725 rpm (nice motor). But in order to get around 1200 rpm on the pump (a 12.5" flywheel"), I installed a 9" pulley on the motor. This causes it to draw almost twice the rated amperage - which will obviously burn the motor eventually.
So, I would like to get a different motor that runs faster. I see that most compressor motors run at around 3450rpm (twice as fast as mine). At this speed, I would need a 4.5" diameter drive pulley - much more standard.
So again, do I need a 5hp motor (expensive), or can I use something smaller?
Oh, I am using 220V / 30A power.
Thanks for the help.
Weekend Mig
What size motor (hp) do I need to run a 3-cylinder, single-stage compressor pump?
There is no stamp on the motor, but from what I can find on the web, similar pumps are usually called "4 or 5 HP" pumps - rated to run around 1200rpm. Does this mean I need a 5 HP motor to run it?
I bought this 60gal vertical compressor "used" of course. The existing motor is a Baldor 2hp running at 1725 rpm (nice motor). But in order to get around 1200 rpm on the pump (a 12.5" flywheel"), I installed a 9" pulley on the motor. This causes it to draw almost twice the rated amperage - which will obviously burn the motor eventually.
So, I would like to get a different motor that runs faster. I see that most compressor motors run at around 3450rpm (twice as fast as mine). At this speed, I would need a 4.5" diameter drive pulley - much more standard.
So again, do I need a 5hp motor (expensive), or can I use something smaller?
Oh, I am using 220V / 30A power.
Thanks for the help.
Weekend Mig