Has anybody done something specific to minimize the noise from their
compressor aside from hiding it away 100 yards from where you live?
I've got a 1 hp, 3 gallon compressor that I use and it makes a terrible
racket the once or twice a week that I use it. I'm in an apartment so I'm
concerned about affecting the neighbours.
I was thinking of some type of boxed enclosure or mounting it somehow on a
foam rubber base to lessen vibration. Any suggestions?
The trouble with a box enclosure is that it may reduce the air flow required
for cooling too much.
A rubber base is not likely to reduce noise too much, but it is worth a try.
I mounted my compressor on scraps of the composite decking material. This
was to avoid scratching my concrete more than anything, but makes it very
easy to slide the unit around when I need to get behind it.
Your unit sounds to be small enough it could be hung from the ceiling. This
would help vibration but not sound.
Most of the noise is the compressor/motor/cooling fan. Can you install any
sound absorbing material on the walls/ceiling near the compressor? This may
help the neighbours and still allow the unit to cool itself. Insulation
works well for sound absorbing. The more trapped air the better.
I recently upgraded from a 2HP 20 gal unit to a 3HP (rated 7 but this is
hype) 60 gal unit. This is much quieter than the small unit. I doubt you
will be able to upgrade.
I was thinking of an insulated box and if necessary, I could add some type
of small fan for air input. The few times I'm running it per week, I'm only
using it for a total of less then ten minutes each time and during that
period it usually only cycles on once to maintain its pressure. With that
usage, I know it's not going to overheat. However, in the near future I plan
to be running it for some longer periods with a stapler and if I can get the
noise toned down a little, I'm sure I'd find other uses for it too.
I maybe worrying about nothing. I only run it in the daytime and the noise
of it is not that much greater than a noisy vacuum, I was mostly concerned
with vibrations going though the floor to a neighbour's apartment. You have
a good idea about suspending it though, maybe even suspending it inside a
box of some type. I'll try the foam cushion route as a beginning and see how
that works out.
I was just going to make this statement.
My 25 year old Sears direct drive 1 hp compressor is extremely noisy
and it all seems to be coming from the air intake. Can you buy
mufflers for these things?
Should be ok, it's not continuous duty. I had one of those heavy duty impact
printers (remember those?) during the early 1980's and when its on a
printing cycle it sounds like machine gun firing even at half a block away.
Put it in a box and almost all that noise was gone, even without insulation.
For sound absorption, high density underlayment carpet foam pad works
wonders, much better than the stuff they use on high end speaker enclosures.
That's a good idea and convenient too. I'm about to adopt a cat and will be
building a half decent cat tree/scratching post. I was planning on using the
pneumatic stapler I mentioned earlier to cover the tree with carpeting.
It's real nice when a bunch of small projects all seem to coincide with each
While the smaller compressors tend to be louder because of higher RPM's I
wonder if you could simply extend the intake and muffler and simply box that
portion. It may be just enough that you do not have to use a lot of wood
covering the whole set up.
I have been working in an industry that is heavily dependant on compressors
since 1986. In that time, I have seen many compressors die due to lack of
cooling. Heat buildup does matter, a lot. You would have less problem with
compressors used at the hobby level due to light and intermmittant use but
the better the (cool) airflow, the longer it will last.
Yes I agree in an industry setting but for a hobby setting I do not think
heat is going to be a problem. And since a hole is in deed in the box to
let air in for recharging there will be a continuous supply of fresh air
coming in when it is running.
I recall about 20 years ago the compressor room at the dealership that I
worked at. 6-200 gallon compressors 3 on top of 3, that never shut down
until the end of the day. You did not even want to think of walking in the
room where they were at because of the heat. Oddly they were never any
problem the 9 years that we used them and they were far from new when we
bought the dealership.
Heat would be a serious problem for my 30gal Sears oil lubed unit, if
enclosed, even in a "hobbyist" environment. I've run it enough that the
heat coming off the pump feels reminiscent of feeling the heat pouring
off an automotive engine. It doesn't take all that long for it to heat
up, and an oilless unit, I'd expect, would get hotter quicker. One
would have to send some serious amount of air into any type of small
enclosure to keep the unit from overheating.
On Sat, 10 Sep 2005 13:29:40 GMT, the blithe spirit "Leon"
I really want to make one of these for my compressor. The last time
I used it I accidentally left it on. A week later, when I was doing
some intricate work on something else, it unexpectedly kicked in and
I could have lost a finger. Yeah, the intakes are the loudest part of
Use the foam-backed I/O carpet on both the inside and outside of the
smaller U, the inside of the larger, and the inside of the top. Ask
your local carpet places for scrap from a commercial job; free or
cheap. Loose-weave carpet is good, and since it's all hidden, it
shouldn't make much difference if scraps don't match or what color it
is. Make 2 U-shaped plywood pieces and bisquick a top on it (gluing
the carpeting on first.) Route the hose out through either opening,
either of which allows full airflow.
Make a cutout in the smaller U for adjusting the regulator if
necessary and install a padded door on the outside U to get to it.
-this side against the wall-
\|| 4" gap between U's.
||c compressor c|| c = carpeting
||c c|| || and === are ply
The larger U has the top. The smaller is braced in the corners and
nearly full height so the top contacts it, too. Use any old ply for
the inner U, Baltic Birch (unstained Cherry?) for the outer one.
Finish it (no poly) and use it for a work area (if your compressor
is short enough.)
This should bring the noise level down bunches, maybe 6-10dB.
Never ascribe to malice that which can
be adequately explained by stupidity.
Because if you overheat them, they die. The air throughput is not nearly
enough to disapate the amount of heat generated. As metal gets hotter, it
softens, increasing wear. It takes suprisingly little heat for metal to
soften. Solution: cool the pump or make your compressor from inconel.
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