new compressor pump

shine

shine

Member
i just replaced my old champion 5 hp pump with an ingersoll rand 5 hp pump . my champion would maintain 60 lbs wide open with an blower or in the blast cabinet. the ir struggles to maintain 40 lbs. it also takes a full 20 min to pump up . very disappointed after spending 1k . easy to see why a champion pump will run 2k . i will rebuild my champion for the 3rd time. the champion was bought in 82 as a rebuilt unit.
live and learn .
 
Yeah, the new stuff seems to be a coin toss. At least you'll have something to use while your Champion gets worked on, maybe you can peddle that IR to someone who doesn't need as much volume.
 
both rated as 5 hp . ir claims 15 cfm free air. no where near that. just using my blast cabinet yesterday it went down to 40 lbs . it takes 20 min to pump up to 100 , the champion would build 120 in about 10 min or less and maintain 60+ free air . i'll spend the 170 for a rebuild kit for the champion and refresh it. the ir will go on the farm truck for portable air .
 
Luv my Champ! I have since hopped it up with a 5hp Baldor motor, and a bigger pulley. Putting out 17 CFM. Super easy to work on.
 
shine;n82994 said:
both rated as 5 hp . ir claims 15 cfm free air. no where near that. just using my blast cabinet yesterday it went down to 40 lbs . it takes 20 min to pump up to 100 , the champion would build 120 in about 10 min or less and maintain 60+ free air . i'll spend the 170 for a rebuild kit for the champion and refresh it. the ir will go on the farm truck for portable air .
Click to expand...

I'm going to have to time my Emglo/Wayne pump now but I'm sure it pumps up from zero to 175 in well under 5 minutes with an 80 gallon tank.
 
did you just replace the pump or the whole unit? Just wondering if the motor pulley spec was smaller for the IR and would turn it faster than it is now.
 
Champions are by far the best made today and well worth any extra cost the R-series like the one I have are bullet proof.
 
just took a guess at model #'s but Ingersoll does show higher rpm. [h=2]Item specifics[/h]
Condition: New: A brand-new, unused, unopened, undamaged item in its original packaging (where packaging is applicable). Packaging should be the same as what is found in a retail store, unless the item is handmade or was packaged by the manufacturer in non-retail packaging, such as an unprinted box or plastic bag. See the seller's listing for full details. See all condition definitions- opens in a new window or tab ... Read moreabout the condition
[TD="class: attrLabels"]Brand:		 [h=2]INGERSOLL-RAND[/h]
Overall Height:16"MPN: [h=2]2340[/h]
Overall Width:18-3/16"SKU:G8531546
Pump RPM:1575Free Air CFM @ Max. Pressure:15.0
Rotation:CCWGroove Quantity:1
Valve Type:FingerHP:5
Max. Pressure:175 psiItem:Air Compressor Pump
Oil Capacity:28 oz.NPT Outlet:1/2"
Bore Dia.:3", 1-3/4"Number of Cylinders:2
Flywheel Dia.:13-3/4"Number of Stages:2
Sheave Size @ 1725 RPM:6-17/64"Overall Depth:19-1/2"
Stroke Length:2-3/4"Construction:Cast Iron
Lubrication Type:Splash LubricatedGroove Section:A
UPC: [h=2]does not apply[/h]
R10-15DPUMPDRAWING.JPG
 
Holy Crap! 1575 RPM's on the IR. I bet that thing gets smokin hot and ear ringing loud.

I run my Quincy 325 at 500 rpms so It's quite. Then click on the 340 pump if I'm blasting. The 325 did lose a lot of air when I turned down the speed. I think it was around 850 originally. I just wanted a day to day compressor that I could talk on the phone when it kicks on. I don't know why but somehow it sincs up the phone to kick on at the same time.

Those numbers in the chart tells why it doesn't make the air pressure as the Champion. Ingersoll Rand used to make good stuff but I think they sold out years ago. Maybe not in the commercial field but surely in the small scale stuff.
 
Not my model. If anything it runs a little faster. Has a smaller flywheel . Electric motor turns 1740 .it will be fine until i build the champion. The ir is b;uilt in india.
 
Just thinking the ratio between the flywheel pulley and motor pulley is reducing your pump RPM. Its like the multi speed pulleys on a drill press. You are getting all 1740 at the motor shaft diameter, but the pulley is the same as changing your fan speed on your spray booth fan by swapping the motor pulley. Most of the shops in India are using fixtures and tooling from the plants that shut down in the US.
 
Opposite. Smaller flywheel will speed it up.

On the motor side it's opposite. Larger pulley = more rpm's.

Their are a ton of pulley calculators on the web. Plug in your motor RPM's and flywheel diameter and you can dial in your desired pump rpm with a cheap pulley from Mcmastercarr.com
 
shine;n83020 said:
Not my model. If anything it runs a little faster. Has a smaller flywheel . Electric motor turns 1740 .it will be fine until i build the champion. The ir is b;uilt in india.
Click to expand...


i know. i said it twice :)
 
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