Air compressor for rupes lhr75
- Thread starter kingweb50
- Start date
I've been wondering the same thing. I've got a lot of recommendations and I notice the one thing they all have in common is they are 5 CFM @ 90 PSI or higher.
FUNX650
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- Dec 1, 2010
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If the RUPES lhr75 does indeed require 15 cfm...
Then I'll suggest, as the minimum requirements for efficacy of operation :
-5HP Two Stage Piston Air Compressor
-Single Phase: (208V/230V)
-CFM: 17.0
-Max PSI 175
-Receiver (Tank) Size: ~80 Gallon
***Good idea, IMHO, to always check to see if a compressor's: 'electrical-location'...
will accommodate the right-size breaker before purchase.
Bob
Then I'll suggest, as the minimum requirements for efficacy of operation :
-5HP Two Stage Piston Air Compressor
-Single Phase: (208V/230V)
-CFM: 17.0
-Max PSI 175
-Receiver (Tank) Size: ~80 Gallon
***Good idea, IMHO, to always check to see if a compressor's: 'electrical-location'...
will accommodate the right-size breaker before purchase.
Bob
If the RUPES lhr75 does indeed require 15 cfm...
Then I'll suggest, as the minimum requirements for efficacy of operation :
-5HP Two Stage Piston Air Compressor
-Single Phase: (208V/230V)
-CFM: 17.0
-Max PSI 175
-Receiver (Tank) Size: ~80 Gallon
***Good idea, IMHO, to always check to see if a compressor's: 'electrical-location'...
will accommodate the right-size breaker before purchase.
Bob
Kevin Brown, who is a good source of information about RUPES products, told me he uses this compressor with the LHR75: Craftsman
As you can see it's only rated at 5.1 CFM @ 90 and only 25 gallons on a standard 110v outlet. So while the requirements on paper may state a high CFM requirement, I'm told it's not actually needed in practice although a pancake compressor probably isn't going to cut it.
I've also been told the following compressors are being used successfully with the LHR75:
Air Compressor with Impact Wrench: Get Cranking with Tools from Sears
Craftsman 33-Gallon Portable Air Compressor: Power To Go from Sears
Portable Air Compressor by Craftsman: Get the Job Done with Sears
Last edited:
Chris@AutoCleanse
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- Nov 3, 2012
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Thanks for the good info
FUNX650
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- Dec 1, 2010
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From the RUPES lhr75 Technical Data Sheet: Air consumption: 320 l/min
Sure...
A person can save some money by purchasing an air compressor
with a large tank and smaller motor for intermittent use...
But I still stand by my recommendations if one has the need
for more efficient, longer, or continuous use.
-5hp 2 Stage Piston:
1.) Be careful...Not all "manufacureres' hp" is rated the same.
2.) Much more quiet than non-oiled
-Single Phase (208V/230V): For non-industrial usage.
More efficient use of domestic electrical-power.
-CFM: Using RUPES lhr Tech Info...13-17.
Real simple: Select an air compressor that exceeds the CFM of your most powerful air tool.
If the flow isn’t strong enough, the air tool won’t perform properly.
-Tank Size: Bigger (stored volume capacity) ~80 (a smaller tank ~30-60gal. is not always better)
1.) Boils down to how one plans their air-usage
2.) If the compressor pump and motor remains strong enough, you shouldn't run out of air.
Your decision.
Bob
Sure...
A person can save some money by purchasing an air compressor
with a large tank and smaller motor for intermittent use...
But I still stand by my recommendations if one has the need
for more efficient, longer, or continuous use.
-5hp 2 Stage Piston:
1.) Be careful...Not all "manufacureres' hp" is rated the same.
2.) Much more quiet than non-oiled
-Single Phase (208V/230V): For non-industrial usage.
More efficient use of domestic electrical-power.
-CFM: Using RUPES lhr Tech Info...13-17.
Real simple: Select an air compressor that exceeds the CFM of your most powerful air tool.
If the flow isn’t strong enough, the air tool won’t perform properly.
-Tank Size: Bigger (stored volume capacity) ~80 (a smaller tank ~30-60gal. is not always better)
1.) Boils down to how one plans their air-usage
2.) If the compressor pump and motor remains strong enough, you shouldn't run out of air.
Your decision.
Bob
Of course what you suggested will work and is preferable, BUT is it really needed? I think based on what those people who actually use it daily say, it's not.
Since the OP was asking about a very small 4gal compressor and "only use it for tight spots", I think it's safe to assume he's trying to use something as portable as possible.
I would have to guess that a majority of the people who want to use an LHR75 don't want to invest in a fixed location, 80 gallon compressor running dedicated 220v. I would think most of them are like myself and would like a little portability without jumping through hoops and investing $800 ~ $2000 or even more with the exception of those people who have a fixed location shop (and even they may prefer otherwise).
It has been proven to run perfectly fine without that by the person who introduced it to us here in the US (among others)... even though the manual states otherwise.
EDIT: Just to add I'm not disagreeing with you. I just don't think that's what *most* people including the OP (based on his 4 gallon question) are asking. It's obviously a no brainer that your recommendation will work.
Since the OP was asking about a very small 4gal compressor and "only use it for tight spots", I think it's safe to assume he's trying to use something as portable as possible.
I would have to guess that a majority of the people who want to use an LHR75 don't want to invest in a fixed location, 80 gallon compressor running dedicated 220v. I would think most of them are like myself and would like a little portability without jumping through hoops and investing $800 ~ $2000 or even more with the exception of those people who have a fixed location shop (and even they may prefer otherwise).
It has been proven to run perfectly fine without that by the person who introduced it to us here in the US (among others)... even though the manual states otherwise.
EDIT: Just to add I'm not disagreeing with you. I just don't think that's what *most* people including the OP (based on his 4 gallon question) are asking. It's obviously a no brainer that your recommendation will work.
sparty
New member
- Dec 9, 2011
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From the RUPES lhr75 Technical Data Sheet: Air consumption: 320 l/min
Sure...
A person can save some money by purchasing an air compressor
with a large tank and smaller motor for intermittent use...
But I still stand by my recommendations if one has the need
for more efficient, longer, or continuous use.
-5hp 2 Stage Piston:
1.) Be careful...Not all "manufacureres' hp" is rated the same.
2.) Much more quiet than non-oiled
-Single Phase (208V/230V): For non-industrial usage.
More efficient use of domestic electrical-power.
-CFM: Using RUPES lhr Tech Info...13-17.
Real simple: Select an air compressor that exceeds the CFM of your most powerful air tool.
If the flow isn’t strong enough, the air tool won’t perform properly.
-Tank Size: Bigger (stored volume capacity) ~80 (a smaller tank ~30-60gal. is not always better)
1.) Boils down to how one plans their air-usage
2.) If the compressor pump and motor remains strong enough, you shouldn't run out of air.
Your decision.
Bob
+ 1 for Bob
I use air tools frequently and I have experience with air compressors and their capabilities. If you are going to run the Rupes and decide to buy a $500 compressor, you will burn that compressor out in no time. Plus, it will not provide enough constant air needed to run the tool. Ideally, you need a 100% duty cycle compressor with a 80 gallon tank 2 stage engine 230 Volt 5+HP (7.5 is best) and 20+ CFM at 100PSI. A compressor with these specs runs around $2000-2500. Expensive yes. My rotary sander uses 10-15 CFM. My Quincy compressor has never been unable to keep up with the demand.
If you are going to buy the Rupes air tools you better plan ahead and get a good compressor or you won't get the performance from the tool.
-Sparty
fenderpicks
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Man... i plan on getting the LHR75
I own a 30 gallon craftsman compressor... i was hoping that would be enough....
I own a 30 gallon craftsman compressor... i was hoping that would be enough....
Please do let us know how it works out for you and what model you have. :xyxthumbs:
fenderpicks
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Lol, im not sure if i will buy the LHR75 now.
I dont have the need or funds to purchase a bigger compressor than my current one...
I dont have the need or funds to purchase a bigger compressor than my current one...
FUNX650
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- Dec 1, 2010
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Thank you very much!!
Your post was stocked full of excellent information like the above!!
rops:A good place to start is:
What's the actual HP?
What's the CFM?
I do understand where your coming from.
But since:
I already own several pneumatic tools; and, if I were to further invest ~$400-$500 (~$600-700 @ some vendors
) for this Rupes lhr75 pneumatic tool...I would definitely want the right-sized compressor...That's me.
{NOTE: I wonder what the "lhr" means?? 320 l/min = 19,200 l/hr??}
Now:
-There are portable air compressors (electric & gasoline) that are designed to meet the mobile detailers' needs.
Also:
-Some of the compressors you linked to are mostly the: Vertical tank style, weighing over 150 lbs...
Portability, then, is determined by...??
-One very important item that I forgot to list (and that hasn't been discussed) is:
Some type of an air-dryer system for compressed air.
BTW:
Introduction of moisture into pneumatic tools is to be considered their: Death Knell!!
Bob
fenderpicks
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Horsepower: 1.6
Maximum Operating Pressure (psi.): 150
SCFM Delivery:
SCFM Delivery At 40 psi: 6.3
SCFM Delivery At 90 psi: 5.1
Maximum Operating Pressure (psi.): 150
SCFM Delivery:
SCFM Delivery At 40 psi: 6.3
SCFM Delivery At 90 psi: 5.1
FUNX650
New member
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The (S)CFM is ~ 43% of the air-demand of the RUPES lhr.
Since I don't know your intended usage for this air tool... sporadic or otherwise...Then:
Your call...Your choice.
Bob
Footnote:
I hope there will not be the necessity for folks to post that their recently purchased,
(perhaps, even being: under-powered)..."detailing-tool" is not: Running up to snuff.
fenderpicks
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So my compressor does not even meet half of what Rupes stated the LHR75 require!?!?
I do understand where your coming from.
But since:
I already own several pneumatic tools; and, if I were to further invest ~$400-$500 (~$600-700 @ some vendors
for this Rupes lhr75 pneumatic tool...I would definitely want the right-sized compressor...That's me.
Right size for the lhr75? Stop looking at the specs for a minute and talk to someone who has experience using the lhr75 with a ~30gal 110v compressor. How about what is affordable / portable / and has been used successfully with the lhr75. I know a lot of people including myself who want a compressor just for the lhr75 and maybe blowing out the interior of a vehicle or inflating a tire without bolting a compressor to the floor, running a 220v main or spending an outrageous amount of money. Remember we are talking about what will work with the lrh75 and not what will work with all bob's tools.
{NOTE: I wonder what the "lhr" means?? 320 l/min = 19,200 l/hr??}
Going by that I guess I only need a small compressor for my lhr15? :idea:
Now:
-There are portable air compressors (electric & gasoline) that are designed to meet the mobile detailers' needs.
:surrender:
Also:
-Some of the compressors you linked to are mostly the: Vertical tank style, weighing over 150 lbs...
Portability, then, is determined by...??
I linked to those because they have been used without any problem with the lhr75. Portable is being able to wheel it out of the shed or garage to the driveway or where ever else you need it at that time. Also being able to plug it into any standard outlet. Or loading it into your trailer if you're mobile. 150lbs is not too heavy to roll around.
-One very important item that I forgot to list (and that hasn't been discussed) is:
Some type of an air-dryer system for compressed air.
Agreed.
Bob
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What would be a recommended air compressor that meets the specs required that is for a Mobile detailer or at least isn't a fixed unit
Thank you very much!!
Your post was stocked full of excellent information like the above!!
A good place to start is:
What's the actual HP?
What's the CFM?
I do understand where your coming from.
But since:
I already own several pneumatic tools; and, if I were to further invest ~$400-$500 (~$600-700 @ some vendors
for this Rupes lhr75 pneumatic tool...I would definitely want the right-sized compressor...That's me.
{NOTE: I wonder what the "lhr" means?? 320 l/min = 19,200 l/hr??}
Now:
-There are portable air compressors (electric & gasoline) that are designed to meet the mobile detailers' needs.
Also:
-Some of the compressors you linked to are mostly the: Vertical tank style, weighing over 150 lbs...
Portability, then, is determined by...??
-One very important item that I forgot to list (and that hasn't been discussed) is:
Some type of an air-dryer system for compressed air.
BTW:
Introduction of moisture into pneumatic tools is to be considered their: Death Knell!!
Bob
tuscarora dave
Active member
- Aug 21, 2009
- 5,408
- 11
If the RUPES lhr75 does indeed require 15 cfm...
Then I'll suggest, as the minimum requirements for efficacy of operation :
-5HP Two Stage Piston Air Compressor
-Single Phase: (208V/230V)
-CFM: 17.0
-Max PSI 175
-Receiver (Tank) Size: ~80 Gallon
***Good idea, IMHO, to always check to see if a compressor's: 'electrical-location'...
will accommodate the right-size breaker before purchase.
Bob
I'm with Bob on this one. I have exactly what he has suggested made by Quincy (so it's a real quality compressor) and I can run it out of air while using just about any pneumatic sander or polisher for anything other than real short polishing cycles.