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Help selecting a 5HP single phase compressor motor

malibu101

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I have an 80 gallon Champion compressor. I've had it a few years, it runs great.
I got it with a 3 phase motor. I'm tired of having to start up the phase convertor I built just to run this when needed.
Time to get a single phase motor for it. :thumbup:

My needs are single phase, 5HP, 184T frame, open/dripproof is fine.

Is asking which is better Marathon, Leeson, or Baldor like asking if Chevy is better than Ford?

I've narrowed down to this but am open to what the minds here think- http://www.electricmotorwholesale.c...~1300-1800,20004~182-4T,20009~Compressor Duty

Electric and motor starter are fully under control.
I'm guess I'm asking what motor would you get (or have you gotten) and why or why not?

I PM'd with a guy on here about 2 years ago that lives near me and sells Leeson. I may try to contact him again now that I'm financially ready.
 
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strutaeng

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They are all probably similar internally. Just make sure you match the RPM and Service Factor and you should be good.

If you are using your existing pulley also make sure you match the motor shaft.

I wouldn't have a problem ordering any of those brands.
 

theoldwizard1

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Baldor used to be "king", at least up until they were bought out by ABB in 2011. They have recently dropped the old name, but I am sure there are thousands of new motors in stock.

I don't know if they are US made or if the quality has held up,
 
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malibu101

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I would buy the brand i could find used in good shape. $500+ to avoid the RPC is a good chunk of money
Oh I feel it. But the convenience of not having to start the RPC every time I want air AND freeing up the floorspace is worth it to me. This is not a hasty decision.
I have had my eyes wide open for a few years and have not found any used that fit my needs.

I bought a Baldor 5 hp motor off Amazon a few months ago for $383 shipped, was an exact replacement for my 20 year old compressor
Thanks for the lead. Price shopping (apples to apples) is next.
 

aar_man

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Pennsylvania
Also in PA,
I just went through this. Purchased a Quincy 340 with a 7.5 hp 3-phase and decided to re-motor. Found the 7.5 single phase L1510T Baldor I wanted with the correct shaft size and case and 1.15 service factor and waited.
When ebay ran their 15 percent off up to 100.00 I ordered it. Free shipping (125 pounds). It came from Compressor-source.
I think you might need a L1410T for your application.
Good luck.
 
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malibu101

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That L1410T does seem to be a perfect match for my needs and 184T frame. I didn't know of this number.
Thanks!

Pics of existing motor and nameplate.
And the RPC that I trip over.

Video of what I have to do to start her up-
 

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aar_man

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Glad I could help. The frame, SF and such looks like a match.
So in your current setup, the single phase spins the 3-phase which generates 3-phase for your compressor?
What size is your current single and 3 phase motor that comprises the "RPC"?
 
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malibu101

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Glad I could help. The frame, SF and such looks like a match.
So in your current setup, the single phase spins the 3-phase which generates 3-phase for your compressor?
What size is your current single and 3 phase motor that comprises the "RPC"?

To clarify the video. I plug in the little (1/2HP) starter motor to bring the big 10HP 3 phase motor up to speed. I then unplug the starter while turning on the breaker to the 10HP. I then take the belt off to minimize load, although I don't know if that's necessary. Then the compressor goes on and runs fine.
I am so tired of these steps and extra junk on the floor.
 

mike93lx

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To clarify the video. I plug in the little (1/2HP) starter motor to bring the big 10HP 3 phase motor up to speed. I then unplug the starter while turning on the breaker to the 10HP. I then take the belt off to minimize load, although I don't know if that's necessary. Then the compressor goes on and runs fine.
I am so tired of these steps and extra junk on the floor.

Wow, agreed. My rpc for my drill press has a momentary switch and a toggle switch. Much simpler.

After hearing all that, you probably lived with it longer than i would have.
 
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malibu101

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Wow, agreed. My rpc for my drill press has a momentary switch and a toggle switch. Much simpler.

After hearing all that, you probably lived with it longer than i would have.

I could use capacitors to start the 10HP like you're describing but never stumbled across any.
I got these 2 motors for free, scabbed them together and have been running this way for about 3 years.

This compressor is the only 3 phase piece I have and the size of my garage, sadly, means I'll never have room for any other 3 phase equipment.
I am planning on building a bigger shed next to the garage to move this into so I'm finally getting a motor for it.
 
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930dreamer

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I found this one, 1-3/8" shaft. I stand corrected.
 

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kazlx

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Thanks for looking! Sincerely appreciated!
Like you said, your 213T frame has a 1" shaft.
My 184T is 1 1/8".

I don't know what a new pulley costs, but a new pulley would probably offset the cost of the "wrong" motor.

Pulleys are cheap, I think I paid like $40 for a split bushing pulley I needed. When I purchased my compressor used it kept overheating. Turned out someone had a pulley for a 10hp motor on it instead of the 5. Swapped it out and works fine.
 

MKSJ

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I have the Champion HR5-8 with an R15B pump, the range of Hp is 3-7.5 Hp, so going to a 5Hp you will need a new smaller pulley if you change the pump speed or motor shaft size. As pointed out they are inexpensive. The stock motor on my Champion (purchased 2 years ago) is a Leeson single phase 5 Hp. At the time they said they were having more reliability issues with the Baldor, which was being made in Mexico (as is the Leeson). That being said, you want a compressor rated motor, the Baldor L1430T is very popular, reasonable (eBay seller) and has a good track record. It would be my first choice for a single phase motor replacement, it has a 1 1/8" shaft. Not sure the difference with it and the L1410T, but higher amps does not necessarily mean more power, if the efficiency is lower.
 
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Bert_

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Pretty much any of the motors OP listed will be good. Baldor always used to the the "best". One I didn't see listed is WEG. They have become pretty popular around here and hold up well.
 

In2toys

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I did this a couple of years ago. used a baldor I got from amazon I think. I stopped at a local motor supply place to check price & it was over twice the price of the one I ended up with. Baldor L1430T General Purpose AC Motor, Single Phase, 184T Frame, ODTF Enclosure, 5Hp Output, 1725rpm, 60Hz, 230V Voltage $420 1 1/8" shaft I believe
 
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James-W

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For a home air-compressor that isn't used all the time, I would think pretty much any motor brand would be acceptable. If it is a compressor used all day every day, that's a horse of a different color.
 

CCer

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I buy used. From an electric motor repair shop that is nearby. They may make a deal on your unwanted equipment.
 
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