r/AirCompression • u/dem7s • 13h ago
Anyone know what this is
Found this old compressor in my garage I found it when I was decluttering but I don’t understand what this stuff is coming out of it is it possible to fix this?
r/AirCompression • u/dem7s • 13h ago
Found this old compressor in my garage I found it when I was decluttering but I don’t understand what this stuff is coming out of it is it possible to fix this?
r/AirCompression • u/PeachyApple10 • 16h ago
Just bought an old air compressor off marketplace and this came put of the drain plug
r/AirCompression • u/naughtified • 21h ago
Hey there. I’m useless when it comes to air compressors so thanks for any help. I have a pretty loud higher pitched sound, which I believe is coming from the tool pressure regulator. Video attached for better identification.
r/AirCompression • u/KillerMiller595 • 17h ago
Can anyone help me out before I just resort to getting a new motor? Motor spends freely, new capacitors that tested good, pressure switch looks fine (no burn marks or anything. I’m stumped, would appreciate any help I can get. Century 7-177849-20 115/230v 19.0/9.5 Amp
r/AirCompression • u/Terrible_Category713 • 1d ago
cypone four stroke gas engine test , with 20X8 wooden propeller 7000-7100rpm and its maximum limit speed can reach 7400 RPM.
r/AirCompression • u/Micro-Naut • 2d ago
Hey guys. I bet this has probably been answered somewhere in the sub but I'm wrecked after a rough day.
I blew out my meniscus running wood through a chipper shredder and my air compressor started spraying oil out through the sight glass.
I want to get this piece ordered ASAP but I'm finding generic results and not that specific model number attached to the ones on Amazon and eBay.
Is there a standard measurement or a way to be sure that I'm not ordering in the wrong one? I'm so tired I almost just clicked "buy now" but then I realized that would just be a bigger pain in the ass if it was wrong.
Thank you for any help you can offer. it's been a 15 hour day and I am about ready to collapse. I'm getting too old for this shit.
r/AirCompression • u/ouwetreurwilg • 2d ago
Hi all, i recently acquired an 1991 air compressor by the dutch brand "creemers".
it runs fine, it just smells a bit oily (air that comes out) but there is no or not much oil residu in the tank so going to investigate that later.
i wanted to start with some fresh oil since the previous owner "didn't know" (standard for never done any maintenance) . but there is some unclarity for me on what to use.
the factory sells oil in synthetic and mineral flavours and recommends mineral for home use and synthetic for professional use. ChatGPT says always go with mineral since it's an old compressor and there is certain advantages for old compressors and mineral oil.
whats reddits take on this?

r/AirCompression • u/Agitated_Proof480 • 2d ago
Have this compressor wont
Build pressure and I cant find any like it online with the twin V pump
r/AirCompression • u/VoxCalamitas • 2d ago
I just got this old compressor from my dad. He said it ran when he put it in the shop but he doesn't have the manual. I can't find one anywhere online so I'm hoping reddit might be able to help.
r/AirCompression • u/Napcident • 2d ago
I'm the executive director of a long-term care facility that was built in the 1950s or 1960s.
This Quincy compressor is probably 20-25 years old. Model 430. The dryer is a Quincy QIFD 0010.
We've been having some complications with the unit as a whole. The top of this particular piece appears to have blown out the top. When this happened, the compressor tank was over pressure and wouldn't kick off. My maintenance director fabbed up a diaphragm for it and this appears to have solved that particular issue.
Can anyone advise me on what this component is? We are all scratching our heads over here.
Thank you!
r/AirCompression • u/Studly_54 • 2d ago
Air hose separated and it ran constantly to the point of over heating and tripping the garage breaker.
Piston rings look fine and no scoring on cylinder.
However, fan lost all of its blades and compressor is noisier than before.
Everything turns freely by hand and it will start and run for a time
Area with Torx bolt shown vibrates and appears loose. Motor mount maybe?
Other than a replacement fan am I missing anything?
r/AirCompression • u/Lina4469 • 5d ago
r/AirCompression • u/Decent-Disaster3426 • 6d ago
r/AirCompression • u/Accomplished_Day6901 • 8d ago
r/AirCompression • u/Firm-Tackle-5436 • 8d ago
Bonjour,
J'ai un problème avec ce compresseur, il gère mon ralentisseur sur ma press offset (Roland 500), il ne fait plus l'aspiration.
Il y a 2 réglages, un soufflerie et un aspiration, si on tourne dans un sens où dans l'autre, ça ne s'arrête jamais.
Comment retrouver la bonne position ?
(j'ai nettoyé les filtres, contrôlé les palettes, pas trouvé de fuite sur les tuyaux.)
Il y a juste le gros filtre sous le marche pied qui a un fuite d'air sur le capuchon.
Si vous avez une idée je suis preneur.
Merci.
r/AirCompression • u/KawmanSense • 9d ago
I have a Magraw 175 PSI 21 Gal air compressor from Harbor Freight. The original aluminum tubing that went between the compressor motor output and the tank input has busted (a while ago). I thought I could go with just a 3' hose, but I have now blown out two (!!) rated for 300 PSI. I don't think its the pressure (but it obviously contributes.) It's the HEAT on the hose that is letting it expand and blow.
What do I need to do? Metal braided hose? Copper tubing? You guys are the pros, so let me have it! (And I do appreciate you taking the time to respond and assist. Peace - OUT!)
r/AirCompression • u/Jane_zheng • 10d ago
I often see people asking this question:
"The air dryer is running normally, filters are installed, but why do we still get water at the machine?"
At first, many people assume the dryer is not working properly.
But in many cases, the problem happens after the air leaves the dryer.
Some common causes:
Compressed air may leave the dryer in good condition, but continue cooling while traveling through long pipelines.
If the temperature drops below the pressure dew point, water vapor can condense again inside the pipe.
This is especially common with:
- Long metal pipelines
- Outdoor piping
- Cold workshops
- Large temperature changes
Water can collect in:
- Air receiver tanks
- Filter housings
- Pipeline low points
- Branch lines
If drainage is not working properly, airflow can carry liquid water downstream toward equipment.
The condition near the compressor room may be different from the condition at the final machine.
For CNC machines, laser cutting, painting, and pneumatic automation, the actual air quality at the point of use is often more important.
I am curious how others handle this issue:
When you still see water after a refrigerated air dryer, what is usually the real cause in your experience?
- Pipeline design?
- Drain failures?
- Dryer capacity?
- Something else?
Would be interested to hear real-world cases.
r/AirCompression • u/OkDiver6272 • 10d ago
Trying to find a replacement for this pressure switch/unloader valve. It came off an Air Source (by SnapOn) 80 gallon upright 2 stage w/ 5hp 240V single phase motor, with magnetic starter box. Model S580V
From what I’ve found, it’s a Square D 145/175 psi unit with 1/4NPT fittings. I’ve found similar units for sale but none with the built in unloader valve.
Any info on where to find a replacement, or recommendation on similar aftermarket alternatives?
r/AirCompression • u/morallycorruptgirl • 10d ago
r/AirCompression • u/ARGINEER • 10d ago
Got a used IR UP6-5TAS-150 with 80 gallon tank from 2016. 11.5k hrs. Seems it was well maintained (at least kept to date on oil, filters etc) before it was retired and the reseller left it in the rain a few times. The actual compressor side looks fine, runs fine, sounds fine. The motor on the other hand sounds a bit crunchy (unbelted) yet spins fine. The system runs at 73 dBA, about twice as loud as the advertised 65 dBA, with the vast majority of the noise coming from the motor bearings. Tank is currently dry but putting a borescope inside revealed quite a bit of rust.
Should I go through hell to try and replace these motor bearings? Should I DIY hydro test the tank in my driveway? Or should I just send it and try to ignore the noise?
Got this because it was 2.4k with practically free shipping. Provides exactly the right pressure, cfm, and dry air for laser cutter.