Tool test: Can the Harbor Freight 29 gallon air compressor run an HVLP purple paint spray gun?
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- čas přidán 23. 05. 2020
- I tested the Central Pneumatic 29 gallon air compressor to see if it can run the Harbor Freight purple $10 HVLP paint sprayer.
Here's my review of the 29 gallon compressor: • Review: Harbor Freight...
Here are links to the tools I talked about in this video:
(These are Amazon affiliate links, so the channel will earn a commission from qualifying purchases. It’s a great way to support the channel.)
Sprayit SP-33000 LVLP spray gun: amzn.to/3gkLHlV
Puma 60-gallon air compressor: amzn.to/3d1CtJe
Here are other 60 gallon compressors: amzn.to/3gklPXg
If you’re really serious, here are 80-gallon models: amzn.to/2A7nX4o - Auta a dopravní prostředky
For anyone who is wondering if their little air compressor can handle spraying, here's my experience. I have the HF Central Pneumatic 6 gallon 1.5 HP 150 PSI, with the HF 20 OZ HVLP spray gun that according to the manual demands 6 CFM at 40 PSI. I just sprayed three layers of lacquer on a 4' by 6' dining table and not a single issue. The compressor came on one or two times during each layer. I set the output to 40 psi. The tank pressure never fell below 70-80.
I believe the factory specifications are for CONSTANT running of the spray. But what amateur on earth does that? You would need to let the trigger go while you reposition yourself or handle the air hose around the workpiece anyways.
i have an older 8 gallon Central Pneumatic compressor with the gun hes using in the video.. is it great for this purpose? no. but even my compressor worked well enough to paint my boat. i set my gun at 20 psi. but it worked. so i agree with you
I pained a car fender with a pancake compressor at 20psi. Not ideal, but it worked.
*This does exactly what I was wanting **MyBest.Tools** Price was fantastic, lower than Harbor Freight-and it included hose and attachments, and IT IS MADE IN AMERICA, unlike Harbor Freight*
Admit it: You just put out a quick video, to show you're still alive after working under your Beetle using those Harbour Freight jack stands. 😉
Ha! I actually don't have any HF jack stands.
Bought this compressor back in 2013. Very happy with it for home use 10 years later.
I use a crappy 1.7 Pittsburgh gun I bought 20 years ago with it, it honestly does a decent job.
I think you should have put water or thinner in the gun and sprayed it until empty. I’m not sure if it would spray a continuous 10 minutes before running out of product in the gun.
Take doors hood and trunk off on any vehicle and a small compressor will do great painting them separately. Plus you'll be able to tackle your door jams easier. Now don't expect your compressor to last painting every day but for a diy person it'll work. I've personally painted 2 cars and my trim in my house and my fence with a 4 gallon compressor hooked up to a 50 dollar extea air tank with the harbor freight gun with no issues
The air compressor works fine, its the amount of air you are asking it to provide that's the problem...yes in short bursts as one would typically use a paint gun, the compressor will handle it just fine...I've yet to run across a case where I've had my finger on the trigger for more than a couple minutes I guess maybe if you were painting a bus but for most DIYers they're going to do a few feet of painting at a pass, let off the trigger, and move to another section and so on, so the compressor will be able to keep pace....the compressor of course needs to be located in an area with great ventilation in order to help keep the pump cool....the motor will run fine continuously, its the pump itself that'll have issues, and I think most are rated in the 10-25 percent duty cycle for homeowner compressors at least. The motor is 100% duty cycle rated.
You can always stop a few minutes to let the compressor recover and motor shut off too....there's nothing saying you gotta keep on spraying continuously, and in most cases it would be pretty short bursts as you move along whatever you are painting.
I think I've had this same compressor for about 4 years, it does everything I ask it to do pretty well and if the pump fails I can order a rebuild kit from Campbell Hausfeld.
You do got to pretty much continuously keep spraying with clearcoat or you lose your wet edge
@@wild8757 : What do you do when you have to refill?
@@markashlock9017 I use a big enough cup to cover up to the end of a panel, then refill and start on the next panel, after doing it a while you get a general idea of where you’re going to run out
Thank you for the video. I'm researching painting with the purple HVLP gun as well.... just ran your test with the purple gun at ~30psi and ~ 40psi with the trigger pulled... My 20gallon 2hp vtwin compressor seems to keep up with the gun fine. The gun pulls about 60 seconds of air out of the tank before the compressor kicks on and the compressor runs about 60 seconds (30psi) or 90 seconds(~40psi) before shutting off, and then the cycle repeats....
I have this compressor and have used it in the summer time sanding with a DA sander for a couple of hrs. I just put a fan over the pump to keep it cooler. Stays at 60 psi in the tank. Nice little compressor for home use.
I use the 21 gallon HF compressor and painted my car no problem. As long as your patient and not stupid it works just fine :)
What spray gun did u use?
@@theonekninek75230k The cheapo HF one.
I just bought a Eastwood spray paint that only uses 4.5 cfm at 30 psi and I really want that 29 gallon but I think I'll start off with that 21 gallon since I'm new to using spray guns it should handle it
Exactly
I've had my HF 29 gallon compressor for about 13 years. Besides it taking about 10 min to fill the tank, it's a good one. But it WILL NOT run a quality spray gun or pot sprayer, like you said. I Raptor lined a Jeep Cherokee with it and it was perfect didn't have a problem with it at all. Good vid!!
I have this exact compressor. I added a B&M supercooler setup, as an aftercooler, between the pump and tank. The cooler is mounted on the belt guard in front of the pump so air from the fan cools the air charge. I've also installed a water separator between the cooler and tank. It traps A LOT of water. On the output side I've installed a Brass T connection with full port ball valves. One side goes to my T type automotive connector to run my air tools, the other goes to a THB 3 stage air filter with Legacy Hi Flow fittings to run my sandblaster and paint guns. On this side i use flexizilla 50ft hose, again with oversize hi flow fittings.
This runs my siphon blaster excellent. The pump runs pretty constant, but I've never found it "run out of air" and the air coming out is DRY. I run the harbor freight purple gun and the eastwood concours LT. This setup runs them well. Yes the pump runs, but I've never encountered air volume issues with the spray guns. And I've ran them fairly consistent. So, to be conclude, yes consider the spray gun you run with this machine. I love mine👍
You should make a video exposing your set up. I would love to upgrade mine like yours !
which gun do you like better?
Love this video. Thanks
as a car painter myself, what do you spray for 10 min straight. this should be fine for painting the average car, there are a lot of stops and starts to it, AND you are not using the air gun to shoot as much air as it can.
exactly!
Problem is with clearcoat trying to keep a wet edge without starting and stopping
The CFM rating of the spray gun is at 40 PSI. The rating of the compressor is the inlet atmospheric pressure air flow. The compressor outlet air flow will be about 1.5 CFM at 40 PSI. This is misleading but used by most tool manufacturers.
Does it say on the box that it will run a hvlp gun continuously or intermittent?
And like the guy said who's going to hold down the trigger that long.
I have a devilbiss flg 4 and a 29 gallon compressor what u recommend
At what pressure does the pump cut in?
I’m just getting it figured out, did the Home Depot shopping spree, got the husky 27 gallon oil free 200 psi compressor, 6.8 SCFM at 40psi, 5.1 at 90psi. Purchased two husky HVLP composite guns, 100 each. Haven’t tried to paint anything yet, still working with hooking everything up, and thinking about the lines. What do you think about the products I’ve chosen so far? Only trying to do a hood and two fenders and maybe a rear panel.
To get moisture out of the lines, I bought two 50foot polymer lines, a water separator and a regulator that I will install between the lines, just don’t know how I’m going to do it yet.
You are right, this is a big problem with air tools and compressors. The issue is that compressor makers and tool makers are talking apples and oranges.
The compressor rating is almost always in SCFM. This means that it is talking about how many CFM at standard pressure, which is 1 atm, i.e. 14 psi! Even when the compressor lists the rating at say 150 psi, it is still in standard CFM. It is just saying that it will be able to keep pumping that many SCFM against an output pressure of 150 psi.
I look at it as if the compressor is listing the air going in (atmospheric pressure or 14 psi) and not the air coming out. So, a compressor rated at 12 CFM will put out 2 CFM at 85 psi continuously (85/14 is about 6).
Air tools are unfortunately rated by the CFM needed at the pressure required by the tool. So, looking at it another way, if the tool needs 3 CFM at 85 psi, it is the same as 18 CFM at standard pressure! Very few tool makers list the air requirement in SCFM.
you do have to be careful with terminology on all marketing, but atleast local to me in canada seems alot of companies list 2 cfms at two pressures.. they all use different pressures but cfm at 90psi seems to be the most common
from a 100$ 8gallon unit on canadian tire site"Rated Air Flow: 4.8 CFM @ 40 PSI, 3.5 CFM @ 90 PSI" compressor shuts off at 135psi and im sure makes very little flow up near that pressure
Exactly! BTW: this is for consumer air compressors. Commercial units rate for output. Another factor are the hose and coupling sizes.
@@stvwds61 well hose and couplings will effect air consumption and tool output they wont change whats produced by the compressor, i just got milton V style i think purple connectors huge difference in size and tool performance, but that obviously uses more air i suppose you could try and build a restrictive system to make a tool use less air and have a longer useable time frame before letting the compressor catch up
Really hard to find and easy conversion for CFM to SCFM and back. His compressor is 7.5 SCFM at 40 psi. All I want to know is what CFM is that at 40 psi at the same temp and humidity as the SCFM standard so I can if the CFM rated spray gun will work. I'm looking at a Home Depot HUSKY with the same specs as the above HF and it states only good for intermittent HVLP spraying.
@@rudsaki Atmospheric pressure is 14 PSI, which is the standard in SCFM. Lets say the desired working pressure is 56 PSI. This is 56/14, or 4 x higher pressure. To convert to CFM at the desired pressure, divide by this number (as pressure goes up, volume goes down).
In this case, the ratio is 40/14=2.9 and the flow volume goes down to 7.5/2.9 or 2.6 CFM.
My 5 gallon does it, so I already know the answer.
This topic of the bloody cfm on both sides is been a nightmare for me for quite some time. Now I am getting to understand how this bloody relation working together. To be honest I bought a compressor and took me 6months to find the right spray gun!!!
Good informative video I agree every tool manufacturer over inflates or Exaggerates on there specifications its how marketing works not an excuse but i agree with you
I have a oil cooled 3hp Sanaborn compressor that only has 11 gal tank, it puts out similar air volume to the Harbor freight Compressor you have but less tank volume. I wanted to repaint the hood on my truck and the roof above the cab. (It is a extra cab) I used the harbor freight gun that requires 12 CFM. I was concerned I wouldn't have enough air so I bought the oil cooled 2hp 8 gallon compressor at harbor freight and ran both compressors into a T so I could use both at once. Combined CFM on both compressors was 12 CFM. With both compressors running wide open it worked but the compressors never shut off. I am sure with the Sanaborn only I would have run out of air. When you are painting a big area like a hood on a truck, you can not stop in the middle to let the compressor catch up. I have since bought a used 2 hp Speedair compressor off of Craigslist and a 3 into one fitting so I can run all three together. My recommendation is figure out your CFM requirements and buy a 50% bigger air compressors than you think you will need.
Yes when I Sandblast I always run two compressors with a T and even still you have a very limited run time before the compressors need to catch up
20gal compressor will do house doors, varnish a kitchen table. And Ill paint about 59sq ft. of house paint at a time. No harm. Drilled one out to 2mm for house paint so as not to thinn so much. And yes reg. at gun.
You didn't show whether you had the gun set to full fan. That would use full air flow. A good reason your compressor head got so hot could be from the fan pulley standing against the wall. Nearly everyone does it. Rotate the unit 180 degrees and it will benefit from more air cooling.
I think you should try it again, but use higher pressure on your compressor and a regulator at the gun to drop the pressure to 40. I work that your compressor wasn't running until it hit 40psi, of coarse I could be wrong, but you didn't mention when the compressor was set to turn on.
Took teardowns what type of gun I can use for 20 gallon compress????
It can be used to do a repair on some car panels, but like others state, the compressor is designed for a 50% runtime. Also, if the ambient humidity isn't really low, you'll have trouble with moisture in the line very quickly. You really need a two stage compressor on 220/240 volts, with a good moisture control system attached, in order to paint an entire vehicle. No 110 volt compressor anywhere is truly up to the task.
Yes, I talked about the duty cycle in my full review. HF doesn't specify the duty cycle, but 50% is a good guess.
it absolutely can. I have a Kobalt 30 gallon and this hf gun. compressor was set for 40 psi , gun is 6cfm @40 psi...shooting epoxy. about the time i was 2/3 done with a cup of paint shooting individual panels, it was kicking in .
I been trying to find 120-150 120 v pressure sw for this 29 gal vertical compressor no luck yet
Thanks Bill Gates, I know how to paint cars now.
Lmao! Thanks Artie from the show Glee.
Bro 🤣🤣🤣
I have a video that I haven't published yet of running exactly the same test with that same compressor and HF's $74 HVLP gun rated at 15cfm@40psi. The only thing I did differently is let the airlines fill with whatever the regulator was set to (I believe it was around 100psi) and used a regulator on the gun regulated to 28psi (the max pressure stamped on the gun).
The results were exactly the same, it was not keeping up but the pressure was dropping slow enough that it never dropped below the pressure set at the regulator, I think I ended with around 55-60 psi.
That's interesting. I'll check it out when you post it.
Hey, how do you make your video thumbnails? Very well done👍
I use photoshop. I'm just starting to learn how to use it, so they aren't great thumbnails.
Tool Teardowns considering I have no idea how to use photoshop at all. I can’t even make a thumbnail. 😂 I’ll have to watch some CZcams videos on how to do it
My guy perfect
Perfect explained straight to the vain
You should ASSUME only 80% of the compressor rating as peak. Also a fan on compressor helps with cooling. We use a cheap box fan over at angle. With the 80% rule you'll never go wrong. Plus add 5% to a gun rating for basic measure of tolerance. DON'T pump in addition of that 5%. Just treat it as it needs 5% additional.
Very good demo. I wanted to get compressor for this very reason but not after seeing what it cannot. Thank you.
Great video! I wish more people would focus on the compressors---any gun works pretty well with a 60 gallon...lol. I have the same compressor as you and use a Concours LT from Eastwood. It only uses 3.5 cfm at 35 psi. My only complaint is that the 1.3 tip really is a little tight. its fan pattern is also not really large. There's no magic free lunch. The compressor easily handles the gun...But some important tips. I use the "hi flow" merlin fittings--which double air volume. I also use a 1" hose (another HF special). These small things make a huge difference..
I just ordered one I'm new to spraying with guns I'm going with the 21 gallon from HF for now I probably see how that compressor handles it has enough cfm but I'll probably upgrade to the bigger one later
@@2koolforyou88 I have been pulling my hair out trying to get any hlvp system to work, since 1995. The turbines heat up the paint, and do not breakup the paint until it is too thin to count as a half coat. they also lack the top feed needed.
You need, really need 220 volt compressor to use the hvlps. This limits taking it places to do spraying.
I bought a lvlp, but found it uses much more air than the 6 cfm harbor freight.
I bought the biggest hp compressor that 120v can handle.
So far, I have had to stick to over thinned and over retarded lacquer, spraying horizontally so the crappy film can level with gravity and runs are not an issue.
I wonder if the Eastwood concourse lt100 is worth the extra 100 bucks. Or if I should spring for the 12 cfm version of harbor freight, or if this would waste my money which could be put into a pressure pot for faster primer production.
I have the Kobalt Quiet Tech tank and a set of Husky automotive paint sprayers.... one is a standard volume paint sprayer the other is is an HVLP gun... seem to work fine. I did do primer, base coat, and clear coat and it worked fine but I'm not painting a whole car either... it's just touch up.... but larger areas of touch up....
Used that gun with smaller air compressors with lower cfm that that, just do not try to spray the whole damn car in one shot, do it by panels. The same brand 21 gallon one will do a hood on a truck no problem.
Dude… you’re supposed to run higher PSI in the line and then regulate it more at the gun… simple fluid dynamics.
wasnt this a worst case scenario being wide open full flow for 10 minutes.. usually a coat on a car doesnt take much longer than 10 minutes of actual spraying and id say youre only spraying about 50% of the time while putting the paint down due to repositioning and checking how its coming as well as a proper technique requires alot of off and on action as you come to the edge of panels or feather in.. imo it ran this tool great and alot of compressors would since it only requires 40psi to work properly, any compressor will deal with the heat for 10 minutes of use, spraying continiously will eventually cause issues
die grinders or sanders might be a better tool for consumption tests as they require more in the 80-100psi range to have any usable power..2-3 110v compressors hooked together with a little manifold and jumper hoses all of them on different electrical circuits seems to work best for long runs with my diegrinder and is alot cheaper than a pro level 220v unit.. making the tank bigger doesnt increase cfm cant really do much to increase cfm on 110v most every compressor is already using the whole ~1500 watts it can pull without breaker issues
Yes, give it some breaks and this compressor will definitely work for this spray gun.
I’m going to buy one of these guns to paint an old car black. Where do I get the paint from to do it and what type?
There are like a million paint choices. I went with Shop-Line and Urechem for a recent painting project. Urechem is sold online. Shop-Line is a PPG dealer product.
@@ToolTeardowns Ok thanks for the quick reply, this will be my first time painting so I have no idea, I was about to buy a can of black paint from the hardware store lol.
Here’s a video I made on my Kobalt air compressor I got last year czcams.com/video/Fhwzggbsxjg/video.html It does decent with my sprayer but I also take breaks with it.
Real world use this setup WILL WORK when actually painting. With the gun adjusted properly and the breaks between moving from panel to panel and time for flash off. It will run a lot but works fine for real use. Especially if you are the kind that lets up the spary before starting the next line. All the little breaks in spray adds up and really helps. I have used this compressor and same purple hvlp with 50ft 3/8 hose and high flow 1/4 fittings. Regulator on the handle of the hvlp. Compressor regulator set to 100psi and handle regulator at 40psi when spraying(around 55psi off). With my last paint job i had airflow knob around 3/4 to get the spray i was after.
pospc2 I’m dyeing leather seats and I need a compressor. I used a home right hvlp electric gun and it worked and gave me the finish I needed but I upgraded to TC brand HVLP guns off Amazon.
There’s ALOT of flash time and dry time with what I’m doing. That’s honestly most of the time taken is drying the many coats.
So my question is will the California Tools Compressor 8010a model work in your opinion? It’s only like $200 8 gallon
@@FreeChavez I have used a 8 gallon compressor with a hvlp. I wouldn't recommend it personally. The pressure dips and leads to an inconsistent coat. I would recommend it you have a lowes near you and can spare the extra $100 get the 26 gal kobalt quiet tech.
If you don't care about noise then go to home depot and pick up a 21gal husky or harbor freight.
My advice is at least a 20gal. It IS possible to use a smaller 8gal but it needs a lot of time to catch up.
If you are doing seats and are okay with spraying say a single seat bottom or back at a time and wait 5mins or so then you will be fine with the small comp.
pospc2 got ya. And yes I want one that’s under 70db. I’ll save a couple more bucks and buy a $400 price range one! Thanks for your help!
@@FreeChavez good luck with the project!
I own a few compressors, one of which is the 26 Gal kobalt quiet tech, it really is quiet. not sure if it's under 70db but I can use it late at night without disturbing anyone.
I have used it for painting body panels and in a couple days will be giving it a go at painting a complete car.
Whatever you end up with, good luck with the project.
40 PSI is a bit high. You could use the HVLP with 30 PSI very effectively. How does that change the outcome of the test? I literally purchased this same compressor today.
FOLLOWUP:
I also purchased a Fujispray Q5 turbine, which I ended up primarily using to paint my car. It has high CFMs, but only puts out 9 PSI. I made some noob mistakes, but it worked.
look into an aftermarket radiator cooler mod.
you ran it at 40 you don't need to run hvlp at more than 20-30 usually right? that means scfm will go up at lower pressure which is what you want anyway that tank even a 20 gallon is well big enough to do panels with an hvlp or a whole car at once with lvlp it will just take longer either way. really it's the engine + pump on top that's the key, you can cobble a 10+ cfm onto a 20 gallon tank which they don't usually come with and likely get by. because oddly the tanks by themselves can cost as much or more than the pump
Hitting like button
Hitting the subscrib button
The fact this is even a question you need a bigger compressor. I'm not a fan of harbor fright compressors, that's one purchase you don't want to cheapn out on.
you can use it raptor liner truck 🛻?
Yes , I have done a 8ft bed with a smaller compressor
Great tire inflator
I have a craftsman 30 gal on similar gun. No, it doesn't work. The pump with over heat and product hot air and introduce a lot of water into the tank.
ONE WORD LVLP GUN BABY
If your going to tuc your compressor away in a small room of its own you should have a fan constantly blowing air on it.
The reviewed HF compressor is appropriate for air brush work. The video's conclusion, that a greater volume tank is best for high volume painting and pneumatic tools, is the same as the recommendations of the various air compressor manufacturers, including vendor HF.
Try your test again with a VLLP gun. Low Pressure Low volume..
look at compressors duty cycle.
you can spray a car with an 8 gallon compressor, actually you can spray a gun at probably any size compressor because a spray can is smaller and people spray whole cars with paint cans sometimes, I'm talking 2k paint, not regular 1k paint from a store. the trick is use 2-3 oil/water filters, make an aftercooler with 3/8" copper tubing from the hardware store and brass fittings and a tubing flare kit and ALWAYS you will need an air dryer, it can be as simple as using the red plastic ball type filters at the end of the spray gun for $3. make sure you use a new one for each spray session and constantly purge the water out of the other 2 water filters. I'm actually using the HF 21 gallon black compressor, it has plenty of volume to spray a car. I only recently figured out the water problem, the plastic ball filter is the key to that. the oil/ water separators only filter out half the water. you also have to purge the water from the main tank from below
Yes, I paint 3 minivans on my driveway with a husky 8 gallons compressor all depends on skills 😹😹😹👍🏽
@@FranciscoAlvarez-nl3of nice work man
You can spray it even with a 2 gallon compressor 🧐
buy 2 cheapie compressors run both air hoses into one it should keep up good
U need q 60 gallon period in my opinion if you want to lay down the materials smoothly on any ride
I've used a 2hp compressor with a non-HVLP spray gun to paint. It's adequate. The test in this video is not realistic. You'd never be spraying continuously for 10 minutes.
Well, it's pretty realistic if you're spraying a large vehicle. Like I said in the video, give it some breaks and it will work. You'll still be running the compressor pretty much constantly, though.
One can not paint continuously for 10 minutes, for one, you'll never hold the trigger without any stop in between different areas of painting, more importantly, don't you think you have to add paint at certain point and stop painting??
Just like I said in the video, it's not a perfect test, but it gives us an idea how the pump cfm compares to this cfm usage on this gun.
who sprays for ten minutes straight?
Run one with a pancake compressor.
You need a lvlp not a hvlp
Stop crying if yu dont like harbor freight get a dewalt or craftsmen, porter cable ect. I love my air compressor thank yu every company lies