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HVLP - Fuji Mighty Mite opinions

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Forum topic by pdxrealtor posted 03-24-2015 10:21 PM 1280 views 0 times favorited 26 replies Add to Favorites Watch
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pdxrealtor

104 posts in 688 days


03-24-2015 10:21 PM

In looking at HVLP sprayers it seems the Fuji Mighty Mite is considered top of the line.

I’m wondering what your opinions are on the it.

I’m looking at the Mighty Mite 4 (4 turbine) as this should allow me to run some latex through it when I want to do smaller jobs, like a shed.

Any others I should be looking at? Could I possibly get away with the 3 turbine?

Eventually I’ll be using the machine to shoot interior walls and mill work, with acrylic/latex paints.

Currently (first project), I’ll be using it to shoot stain and poly on 10 interior doors, casing, and base board.


26 replies so far

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OSU55

1058 posts in 1454 days


#1 posted 03-25-2015 03:15 AM

Any particular reason you want an all in one unit vs an HVLP that runs off a compressor? I have need for a compressor other than spraying, so I would have one anyway, but it could be 1/2 the size. I like the greater flexibility provided by the compressor/gun setup vs the all in one units, but I don’t need portability.

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pdxrealtor

104 posts in 688 days


#2 posted 03-25-2015 03:27 AM

I don’t want to fight water in the line, and I certainly need the portability.

I’ve been buying everything to try and stay away from a compressor with the exception of a small little portable for blowing, pumping, etc.

View Fred Hargis's profile

Fred Hargis

3942 posts in 1958 days


#3 posted 03-25-2015 11:19 AM

I have the Fuji 4 stage ( I think mine is called a Super 4) with the XPC spray gun as well as the XPC gravity gun. I only use mine for woodworking finishes, never tried latex (as in wall paint) but I have sprayed a fair amount of 100% acrylic paints through it as well as shellac, some oil based enamel and water based dyes. I don’t spray varnish, but can’t imagine it being a whole lot different than oil based enamel. I have 2 tip sets (1.0MM and 1.4mm) and so far that has been enough for everything I do. The turbine is a little noisy, and the hose extremely stiff. I bought the whip with mine, but still didn’t handling the hose…so I replaced it with Flexilla Premium garden hose. Much, much better. It’s a very high quality system, but I’ve never owned/used any pother so can’t compare them. I can tell you that Fuji CS is first rate…even when it’s a very minor problem. I can’t say I’m crazy about the XPC Gravity gun because of the way the cup is mounted on the spray gun, but it’s a minor complaint since the gun works so well.

-- Our village hasn't lost it's idiot, he was elected to congress.

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OggieOglethorpe

1213 posts in 1574 days


#4 posted 03-25-2015 12:10 PM

I’ve had an MM4 since 2005. My setup includes both suction and gravity feeds, a pressure pot, and #3,4,5, and 6 setups. I’ve sprayed everything from dye stain, to shellac, to high quality water based finishes, to NC lacquer, to General Finishes Milk Paint. All with excellent results.

The hose hasn’t bothered me. For long sessions, I add a 50ft. red rubber garden hose, put the turbine in another room, and turn the turbine on and off with a 120v dust collector remote.

I’d buy it again in a heartbeat.

A good turbine HVLP is head and shoulders above a compressed-air conversion gun, especially if you spray anything water based or lacquers. All it takes is a tiny amount of oil or water in the air to ruin your whole day. With a turbine, there is never a chance of your air supply ruining your finish. Another plus is that a turbine system is incredibly portable.

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OSU55

1058 posts in 1454 days


#5 posted 03-25-2015 02:00 PM

Never had oil or water issues with a compressed air system using WB or solvent – an inline filter for painting protects against it. IMO the only advantage to the turbine systems is portability. They are not as flexible as compressor based, which have greater pressure/flow flexibility and gun applications. If one plans to spray on-site at many sites a turbine is definitely the way to go.

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OggieOglethorpe

1213 posts in 1574 days


#6 posted 03-25-2015 02:59 PM

They are not as flexible as compressor based, which have greater pressure/flow flexibility and gun applications.

Please tell us more… Which turbine based systems have you used that brought you to this conclusion?

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OSU55

1058 posts in 1454 days


#7 posted 03-25-2015 03:58 PM

None. My opinion (as noted by “IMO”) is formed based on reviews and reading through specs and information for various equipment. What compressor based guns and finishes have you used to claim ”A good turbine HVLP is head and shoulders above a compressed-air conversion gun, especially if you spray anything water based or lacquers”? How many guns will work with your MM4? How much gun supply pressure/flow adjustment is available? Did you need to thin the various finishes used with your turbine? How much?

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OggieOglethorpe

1213 posts in 1574 days


#8 posted 03-25-2015 07:28 PM

I was just wondering what I might be missing. To answer your questions…

How many guns will work with your MM4?

Most turbine guns can be adapted to work with any turbine. It’s got standard cup fittings, too, in case a user wants to use something like 3M PPS disposable liners.

How much gun supply pressure/flow adjustment is available?

Air? Zero to 100%, right on the hose, using a simple valve just like a garden hose. You set everything else first, then turn down the air for minimal bounce and overspray. The fluid volume (needle opening) is set right at the back of the gun.


Did you need to thin the various finishes used with your turbine? How much?

No. Remember, this is a FOUR stage turbine… I spray GF Milk Paint right from the can, without using the largest tip. With the #6 needle / cap, I could probably spray 40wt motor oil. I do thin some of them, for better flow on the work, to change drying times in varying weather conditions, or for final flow coating with NC lacquer. The high-quality water base clears I use shouldn’t be thinned, and are similar in viscosity to a home center polyurethane. I normally spray most with a #3 or #4 setup, directly from the can.

Once a tip / needle set is installed, the gun has adjustments for pattern, pattern angle, pattern size, fluid to air ratio, and air volume. It can also be changed from suction feed to gravity feed to 1/2 gallon pressure pot feed, in under five minutes.

It all (Apollo, too…) works as well as any conversion gun I’ve ever used, with zero air contamination worries and no need for a huge compressor. If someone already owns a huge compressor and super reliable oil / water filtration, and will always use it in a fixed booth, a conversion gun will save a bunch of money, but the OP didn’t say any of that.

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pdxrealtor

104 posts in 688 days


#9 posted 03-25-2015 07:39 PM

Thanks for the input. Sounds like more YAYs for the Fuji MINI Mite. (Crap- I called it a ‘Mighty’ mite :( )

I just looked up pressure pot, as I had no idea what was. What a nice addition for someone like myself who would like to use this sprayer on larger jobs as mentioned above.

The ability to add extra volume via a pressure pot is huge actually, and it might just have pushed me over the edge. I need to settle down a bit, contain my excitement, and re-visit the shopping cart in about 12-hours. Lol…

Please keep any input coming! It’s all very helpful to me. I was just about to ask Oggie what the # 3,4,5,6 he talked about was, but as I was typing his post above came through. :)

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AlaskaGuy

2406 posts in 1773 days


#10 posted 03-25-2015 07:43 PM

I have a “huge compressor” and use nothing but conversions guns. Compressor has nothing but the standard water trap. Never had a water or oil contamination problem. Maybe I’m just lucky.

-- Alaskan's for Global warming!

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pdxrealtor

104 posts in 688 days


#11 posted 03-25-2015 07:51 PM

First – A compressor is out for me. I am not getting a compressor the purpose of painting, or at all if I can help it. That said, I’ve used a couple compressors consistently. One was mine, 30 gallon, and it had the line filters. I never could get that thing to stop sending moisture down the line. I used it for air tools mostly.

The second is my grandfathers. It’s very large and I’ve painted with it once without any issues. He’s currently working on an alder table, spraying multiple coats of poly on it. Looks great to me.

I think the compressor could be dialed in to work just fine. It’s just not for me at this time. I recently bought 3 nail guns and a staple gun. All battery and/or gas charged. None of them air. Time will tell if that was a mistake or not. :)

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Earlextech

1159 posts in 2155 days


#12 posted 03-25-2015 09:20 PM

+1 OggieOglethorpe – I couldn’t have said it better, and often haven’t!

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

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OSU55

1058 posts in 1454 days


#13 posted 03-25-2015 09:27 PM

I realize air pressure/flow adj is 100%, but a 100% of what? If in fact your system is capable of properly atomizing higher viscosity liquids it is a moot point. A compressor based gun can supply as much pressure/flow as is needed for proper atomization. So a turbine is not head and shoulders above a compressor based system. The finish doesn’t care – it needs the proper cap design and airflow to atomize properly and flow onto the surface (pressure cup/pot systems not included in the discussion).

Being able to use a cheap gun for primer, glues, sealants, etc. that I get into sometimes is a real benefit. I’m not so sure there is as much interchangeability for the turbine guns as you suggest – I think the guns are closely designed with the particular turbine supplying them, and it is a system. Some with turbines have had issues with the air temp off the turbine when using WB finishes – may be set up dependent.

My “huge compressor” takes up about 4 sg ft and runs on 110V, and is available to run air tools and other tasks around the shop. I’ve always needed an air compressor in my shop for various things, so it’s a matter of a little more money for a little larger compressor, and having the flexibility to choose/use any gun. The inline oil/water filters to prevent contamination are just a few $’s, work very well, and last a long time. For those who don’t want a compressor and/or need portability, turbines are the obvious choice.

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pdxrealtor

104 posts in 688 days


#14 posted 03-26-2015 09:25 PM

I’m going to pull the trigger on a 4 turbine.

What are the differences between the gravity and pressure cup setups?

Any suggestions on where to buy? They have them on Amazon, and another vendor I see frequently also has them for the same price.

View Fred Hargis's profile

Fred Hargis

3942 posts in 1958 days


#15 posted 03-27-2015 11:20 AM

With the Fuji XPC, (not sure about the other models) the gravity cup actually has a pressurized paint cup. Before I bought mine my spraying was all pressure cup, and this was the first gravity cup gun I had ever used. I’ve found it to have a learning curve and I still struggle with it a little. Bear in mind I’m hardly a pro, so have little experience with all the different types of guns. Anyway, I added the regular gun when i spotted a used one for sale, and do much better with it. The gravity cup is smaller and better able to get into tight spaces, in my case with identical guns the setup is the same for both (viscosity, cap set, air flow, etc.) As for where to buy, Amazon would be my choice. If you watch you might fall into a “Lightning Deal” and get a very good buy (although there’s a better chance around Christmas). My entire setup normally sells for about $800, and I got it on a lightning deal for about $625. There are lots of other good suppliers as well, Jewitt’s Homestead Finishing sells Fuji, as does many of the on line spray system vendors (Search for the model you want).

-- Our village hasn't lost it's idiot, he was elected to congress.

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