Author Topic: Harbor Freight 60 gallon Compressor 93274  (Read 4058 times)

Ford5of5

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Harbor Freight 60 gallon Compressor 93274
« on: September 21, 2016, 05:10:15 PM »
Just installed a Central Pneumatic 60 gallon compressor from Harbor Freight. Here's a link:  http://www.harborfreight.com/air-tools/air-compressors/5-hp-60-gallon-165-psi-two-stage-air-compressor-93274.html I think the 93274 is being phased out. The replacement will be the same except for a different pump. The tank and motor are American and the pump is from Italy. Costs $800 for the unit and probably another $400 for all the stuff needed for the install.

So far, it's pretty darn good. It runs all my air tools including cutoff wheels, sandblaster and impact gun. I can even continue blasting as it recharges if I keep my regulator below 80 psi. Plenty of air. I'll try to update this review when I get around to painting something. It is kinda loud , but no louder than 120v oil-less unit; its sound is much bassier, so a little easier on the ears. I have it set up in a shed attached to the rear of my garage. Vibration is there but isn't bad

One major complaint I have is a tiny oil leak from the drain and the oil breather. Another is that the oil drain does not extend past the motor mounting plate. I think better o-rings will fix the leak, and I also want to add one of those hose oil drain extenders. When I drain the oil I have to let it run down the tank. A minor complaint is the tank drain. It's a twist type and you only have about 3" to get your hand under there; I imagine that it would get even more difficult as it gets older. I added a ball valve and a 12" nipple to fix it.

So far, I'm happy with it. This is my first time having a compressor that can run pneumatic tools other than nail guns. I gotta say, air-tools do seem to work better than their electric counterparts. MORE POWER! AR AR ARGH! I feel ok with recommending this Harbor Freight unit. It seems stought and its issues are nominal so far.


I added an intercooler and an aftercooler because simple isn't good enough! Thanks to folks on TAC for these tips. The red tank catches nearly all the water. After toying around with my HF pressure pot blaster for maybe 4 hours the red tank had about 4-5 ounces of water. The main tank had a small mist as did the first valve on the after-cooler. The first water catcher had a few drops and the second catcher stayed dry. Never saw any water or felt any moisture out of the blaster. So, I guess that works.

I'll also update this review if and when it screws up! :lol:
« Last Edit: October 21, 2017, 09:29:11 AM by Ford5of5 »

firebirdparts

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Re: Harbor Freight 60 gallon Compressor 93274
« Reply #1 on: September 28, 2016, 10:01:27 AM »
Nice setup.  I like the drip legs.  I did not build any, but probably should.  Thanks for the review on the compressor.
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roadking77

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Re: Harbor Freight 60 gallon Compressor 93274
« Reply #2 on: September 28, 2016, 05:01:12 PM »
That's a nice looking setup. Wondering how you did yours, but the one thing I regret when I installed my compressor was to not re-route the bottom drain. I have see where some guys will take the valve off the bottom of the tank and install an elbow with the drain sticking out. It would be much easier than climbing underneath to let the water out.
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Ford5of5

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Re: Harbor Freight 60 gallon Compressor 93274
« Reply #3 on: September 28, 2016, 06:26:19 PM »
The red tank is from a 20 gallon compressor that I've had for almost 20 years. The first drain valve (radiator style petcock) screwed up in the first year and considering the weight of a 60 gallon I didnt want to take a chance like that. Also, I'm a fat bastard with back problems so the ball valve and nipple (giggity) was the way to go. Here's a few more pics: that dark spot on the floor is where the oil spilled down the tank.


If I had to do it again, I would use 3/4" or 1/2" hydronic baseboard as the radiator just to keep all the tubing the same size as the old intercooler tube. I would also use an autodrain water seperator instead of the 20 gallon tank. I don't know enough about air to know if the 3/8 tubing of the condenser is too small. Also, I watched a few vids on old compressor tanks exploding! So, I might do both of these things over time. I used this stuff because I had it hanging around and was eventually going to throw it away.

At some point I need to replace the hose coming off the pump. The crimps are holding fine but there's too much heat going into the hose. I added the black pipe in hopes it would cool down enough before it got to the hose but I can still smell hot rubber. I will eventually swap it out with some 3/8 tubing and flare connectors.

The trickiest part was figuring out what was going on with the check valve on the 60 gallon tank. I didn't know there was one and couldn't figure out why it was trying to drain the 20 gallon tank of air!
« Last Edit: October 21, 2017, 09:29:37 AM by Ford5of5 »

78TA_In87

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Re: Harbor Freight 60 gallon Compressor 93274
« Reply #4 on: September 29, 2016, 12:02:26 AM »
Thanks for posting your review! 

I'm in the market for one too. This one is in my price range. Want to use it for painting, sanding, drilling and doing a bunch of other things to my car.  Unfortunately I don't have that much time, due to working all the time (including nightly calls with my team in India) to figure out all the is needed to get it set up properly.  I'd rather learn how to do the setting up myself.  Does HF or any of the stores that sell the compressors offer to set it up?
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Re: Harbor Freight 60 gallon Compressor 93274
« Reply #4 on: September 29, 2016, 12:02:26 AM »

Ford5of5

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Re: Harbor Freight 60 gallon Compressor 93274
« Reply #5 on: September 29, 2016, 05:37:47 AM »
I know there are companies that set up and maintain air systems for commercial businesses. I'm sure they would do it for hobbyists but I imagine it would be expensive. You're gonna need an electrician and a plumber. HF does not do setups. As a contractor, I'd need to charge over a grand for this install just in labor.

roadking77

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Re: Harbor Freight 60 gallon Compressor 93274
« Reply #6 on: September 29, 2016, 02:45:34 PM »
I like what you did with the drains, if and when I move my compressor I will make changes to that part.
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Ford5of5

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Re: Harbor Freight 60 gallon Compressor 93274
« Reply #7 on: September 29, 2016, 04:16:03 PM »
@ 78, figure another 400-500 in wire, copper, and valves/fittings. You could do this setup in small parts at different times. You could start with wiring the 240 volts, it's easy but can kill you. Then you could build one of the coolers and add plumbing at another time.

@ Roadking, Home Despot sells the Husky full port ball valves in their compressor section. The drains on the after cooler are standard plumbing valves from the Depot's plumbing section.

78TA_In87

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Re: Harbor Freight 60 gallon Compressor 93274
« Reply #8 on: October 01, 2016, 07:07:20 PM »
LOL!! 

@ 78, figure another 400-500 in wire, copper, and valves/fittings. You could do this setup in small parts at different times. You could start with wiring the 240 volts, it's easy but can kill you. Then you could build one of the coolers and add plumbing at another time.

@ Roadking, Home Despot sells the Husky full port ball valves in their compressor section. The drains on the after cooler are standard plumbing valves from the Depot's plumbing section.

Well, actually I'm more like  :shock:
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Ford5of5

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Re: Harbor Freight 60 gallon Compressor 93274
« Reply #9 on: October 02, 2016, 02:28:06 AM »
Well, the upside is that things that can kill usually can only kill you once.

roadking77

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Re: Harbor Freight 60 gallon Compressor 93274
« Reply #10 on: October 02, 2016, 09:16:10 AM »
I just did a job and the plumber had a couple of 8 lengths of baseboard radiator pipe left over. Being the packrat that I am I put them in my barn. I was thinking about using them in place of the plane copper pipe you used. It has the aluminum fins attached. Do you think it is worth my time doing a setup similar to yours with these?
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Ford5of5

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Re: Harbor Freight 60 gallon Compressor 93274
« Reply #11 on: October 02, 2016, 01:07:20 PM »
In the interest of full disclosure, I'm not an air compressor tech or plumber. I stayed at a Holiday Inn while reading TAC.

I think the baseboard will work, especially for the aftercooler, but you need to check the pipes wall thickness. In my research I read that type M & L will work fine for air but K is generally prefered, I used type L on my aftercooler. Type M is weakest for pressure rating but will do the job just fine with a working pressure of 760 psi; i think the burst pressure is over 1000 psi. All the copper fittings are interchangeable, so this means that it's the pipe's wall thickness that changes. Type M usual has a red stripe on it and is used for water supply. Type L has blue and is used for steam and air. I've never seen K and don't know how to identify it. We went with L because it was only $.50 more per 10 footer, otherwise we would've used M. I also came across a warning that some baseboard manufacturers use thin pipe. I haven't checked into this myself because I didn't have any hanging around but it should be checked. Copper pipe usually has its type printed somewhere on the pipe or is color coded. Type M should have a wall thickness of 0.028.

A point of concern for me, is that working pressures of solder goes down as temperatures go up. My pump and outlet pipe are right around 200 degrees. Regular solder only has a working pressure of 100 psi at 200 degrees. This is why I didn't use it for the intercooler, also because I had the condenser hanging around. There are better solders that work at higher temps, but I've never seen or used them. If you're going to use the baseboards for an intercooler make sure you get the proper solders. I imagine any plumbing supply should be able to point you in the right direction.

The short answer is yes. I believe the finned pipe would work perfectly for the aftercooler. It would also work well for the intercooler if it has the proper thickness and correct solder for high temps. Be careful out there and have fun!
« Last Edit: October 02, 2016, 01:37:50 PM by Ford5of5 »

roadking77

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Re: Harbor Freight 60 gallon Compressor 93274
« Reply #12 on: October 02, 2016, 02:32:18 PM »
I think I will give it a try for giggles n grins. I'm not too concerned about the thickness, I have my shop air plumbed in with L, good thing about using copper, if it fails it will not explode, it only splits.
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Ford5of5

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Re: Harbor Freight 60 gallon Compressor 93274
« Reply #13 on: December 29, 2016, 04:28:32 AM »
Update:

Used the compressor to paint my floors. Worked great, never had to stop spraying with either hvlp gun with 1.5 tip or the underbody gun. Kept up the whole time.


The hose attached to the exit pipe of the pump burst do to heat in October. I added an elbow and 12" pipe to the pump exit and now the smell of burning rubber is gone. Has been working great for the last few months since. Also added a Drainzit kit to the oil drain, works well.
« Last Edit: December 29, 2016, 06:52:40 PM by Ford5of5 »

mark369

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Re: Harbor Freight 60 gallon Compressor 93274
« Reply #14 on: January 14, 2017, 04:53:56 PM »
Nice job, lots of pipe.     

Would like to add this link  http://transamcountry.com/community/index.php?topic=30424.msg278060#msg278060

I has other links with ideas for intercoolers and tank set ups.   

 I got my 60gal from Rural King for $400  " industrial air" brand just like at Home depot for $600
Have painted with mine, no moisture!
« Last Edit: January 14, 2017, 04:58:13 PM by mark369 »

Re: Harbor Freight 60 gallon Compressor 93274
« Reply #14 on: January 14, 2017, 04:53:56 PM »



mark369

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Re: Harbor Freight 60 gallon Compressor 93274
« Reply #15 on: January 14, 2017, 05:04:02 PM »

78TA_In87  Where are you located?   maybe one of us could help?    Wiring is like adding a stove outlet.  3/4 Black pipe gives the best volume for painting, though not cheap. I have a 40 foot run. Its the joints that cost.

Ford5of5

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Re: Harbor Freight 60 gallon Compressor 93274
« Reply #16 on: October 21, 2017, 09:32:31 AM »
Reposting of pics because of Photobucket.
















Re: Harbor Freight 60 gallon Compressor 93274
« Reply #16 on: October 21, 2017, 09:32:31 AM »
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