New ingersoll rand compressor ??

[hunter29078]

Just got what I think is a deal on a used ingersoll rand compressor, anyhow it had a 3-phase motor (the guy removed and gave me a better deal) it was useless for me unless I was to steal power from next door. So my question is does anyone here have an ingersoll with the 2475 compressor pump? If so what rpm does the electrical motor turn and what size pulleys are on it, at the motor and the pump? I am going to try to find a new one and see what is on it, the motor that was removed was a new one and not original and I am not entirely sure they had the correct motor on it. Any help is greatly aprreciated.

 

[NorCal_Chris]

specs on your pump.

HP Rating 5.0 - Free Air Flow @ 175 psi 16.8 - 24.0 CFM - Pump Speed 1040 - 1500 RPM - Speed 1725 - 3450 RPM - Flywheel Diameter 13.75 Inches - Groove Section A A - Oil Capacity 43 Ounces - Motor Sheave Size @ 1725 RPM 8.93 - 5.93 Inches - Shaft Rotation CW - Width 19.7 - Type 30 - Displacement @ 30.0 CFM @ 175 PSI 24


and a motor.

http://www.northerntool.com/shop/to...ectric Motors&cm_cat=Nextag&cm_ven=Aggregates

no idea on pulley size though

 

[hunter29078]

Thanks for the info. This is actually the one I would like to get. http://www.northerntool.com/shop/tools/product_200306765_200306765

But it spins 3450 rpms. The motor that came off of it was a 1745 rpm motor with an 8 inch pulley I don't want to turn it to fast. I am going to try to find a one in a store and take a look at it. Was hoping to hear from someone that had one.

 

[Fordum]

Its too late now, of course, and it turns out that the motor is too big. But up to a 2hp 3p motor can be run off of single phase effectively.

Now you can run any size with a rotatory converter, which is basically a second motor which supplies the lost phase as it runs alongside the other.
But, its expensive and takes up a lot of room.

They make a static converter, but it is not good on the motor, and does not give you full power.

The best way, is to use a motor controller like this one.
http://dealerselectric.com/item.asp?PID=761

It takes single phase 230 and converts it to three phase at whatever frequency and current you want.
Depending on the motor, you can run it from a couple of rpms up to double speed.

The economical ones top out at about 2 hp for single phase input.

If you have 3 phase, and just need motor speed and direction control, then you can get them in just about any horsepower you want.

 

[hunter29078]

Its too late now, of course, and it turns out that the motor is too big. But up to a 2hp 3p motor can be run off of single phase effectively.

Now you can run any size with a rotatory converter, which is basically a second motor which supplies the lost phase as it runs alongside the other.
But, its expensive and takes up a lot of room.

They make a static converter, but it is not good on the motor, and does not give you full power.

The best way, is to use a motor controller like this one.
http://dealerselectric.com/item.asp?PID=761

It takes single phase 230 and converts it to three phase at whatever frequency and current you want.
Depending on the motor, you can run it from a couple of rpms up to double speed.

The economical ones top out at about 2 hp for single phase input.

If you have 3 phase, and just need motor speed and direction control, then you can get them in just about any horsepower you want.

Yeah I looked at those before I bought it, so the deal was he wanted 350 with the 3 phase motor, then the converters I was looking were around 200, but he sold me the unit for 75 without the motor, so I figured the money saved would be better spent on a single phase motor. At least that will make it more favorable to the regular guy if I ever need to sell it, plus I will have a new motor. So I don't think I made a mistake. I was going to call ingersoll but website doesn't give a direct number.