HVLP compressor

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Forum topic by MrRon posted 06-25-2013 06:08 PM 721 views 0 times favorited 7 replies Add to Favorites Watch
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3446 posts in 2282 days

06-25-2013 06:08 PM

Topic tags/keywords: spray gun

Has anyone thought about using a common household vacuum cleaner as an HVLP sprayer? Vacuum cleaners seem to be able to supply a large volume of air. I remember years ago, vacuum cleaners came with a sprayer attachment that worked on the syphon principal.

7 replies so far

View Earlextech's profile


1155 posts in 1729 days

#1 posted 06-25-2013 06:13 PM

Yes MrRon – everyone has.

-- Sam Hamory - The project is never finished until its "Finished"!

View Tennessee's profile


1881 posts in 1553 days

#2 posted 06-25-2013 06:16 PM

The problem is air is compressible, and a vacuum cleaner exhaust is lousy at compression. It uses non-positive fans to develop the air movement, so slippage is inevitable and unwanted.

-- Paul, Tennessee,

View crank49's profile


3877 posts in 2009 days

#3 posted 06-25-2013 06:46 PM

All of the “HVLP” sprayers on the market that I am aware of use fans to develop pressure and hence, air flow.
Well, all but the ones that connect to a regulated and diluted compressed air line.

I have worked with equipment that can develop 7 psi pressure with a fan and using multiple stages you can develop thousands of pounds of force with fans.

But, I have wondered the same thing about the old “Electrolux” paint sprayers. I think I even posted the same question on here a couple years ago.

-- Michael: Hillary has a long list of accomplishments, though most DAs would refer to them as felonies.

View pintodeluxe's profile


4100 posts in 1852 days

#4 posted 06-25-2013 07:00 PM


-- Willie, Washington "If You Choose Not To Decide, You Still Have Made a Choice" - Rush

View OggieOglethorpe's profile


1004 posts in 1148 days

#5 posted 06-25-2013 07:14 PM

Mr. Ron,

Earlex is being funny… HVLP Turbines ARE vacuum motors. One of the most famous OEM’s is Ametek...

View Bill Davis's profile

Bill Davis

226 posts in 2962 days

#6 posted 06-25-2013 09:28 PM

Years ago, don’t remember exactly when, there was a DIY HVAC article in Fine Woodworking mag using a vac motor similar to one of these motors from Grainger.(

So it is not a far fetched idea and if I were ever tempted to go HVLP that’s how I would do it.. In fact here is a reprint.

View dhazelton's profile


1638 posts in 1335 days

#7 posted 06-25-2013 11:36 PM

I have a folder with a copy of that Fine Woodworking article because I was going to build one once upon a time. But that was when HVLPs were a small fortune. They are relatively cheap now and it probably is only worth it if you want to experiment and already have the vacuum motor and a gun. But do it – I’ve always wondered how it would work.

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