Portable compressed air tank

[Gareth Magennis]

wrote in message
news:6845af1b-74c5-4fce-9709-80104f9d3d65@googlegroups.com...

On Wednesday, March 23, 2016 at 8:01:33 PM UTC-4, Gareth Magennis wrote:

wrote in message
news:6beb97dd-2bbd-4af8-b98f-6643afa0eac8@googlegroups.com...

On Tuesday, March 22, 2016 at 5:47:07 PM UTC-4, Gareth Magennis wrote:
Right,


I would really like a very small, cheap, air tank that I can charge
every
now and again at the local garage (i.e. can be filled with a standard
car
tyre pump).
I would also like it to include one of these, to blow all the dust from
the
heatsinks and chassis in Power Amplifiers, amongst other things.

http://www.ebay.co.uk/itm/VINTAGE-1986-HEAVY-DUTY-CLIP-ON-AIR-BLOW-GUN-PORTABLE-AIR-TANK-/281924138448?hash=item41a3fcf5d0:g:QPYAAOSwpzdWrsUq



Does such a thing exist? Are retail tyre pumps powerful enough to charge
these?
I've been Googling but don't know the connector terminology that says
"you
can charge this with your local tyre pump".

I've found lots of portable air tanks aimed at Motorsports, but I'm
really
not sure about the local tyre pump mechanism thingy to charge it.


Cheers,


Gareth.

First, keep a few things in mind.

a) Charging a tire in the field is an entirely different concept than what
you want. Air is subject to Boyle's Law, and the tank size you suggest
would
either require a dangerous amount of pressure in it, or not have enough to
be useful for more than a minute or two - put another way, one minute less
than necessary 100% of the time.

b) Most "gas station thingys" do not have either filters or dryers on
them.
Meaning that the air you are getting will contain a good deal of moisture,
which will also build up in the tank at each charge. If you use a
commercial
compressor, it will also discharge a certain amount of lubricant into the
air. Neither moisture nor lubricants are any good for electronics.

c) As Mr. Allison pointed out rightfully, "canned air" is actually a
compressed liquid, usually 1,1,1,2-tetrafluoroethane, is neither air nor
designed for your purpose. When a liquid changes phase to a gas, and when
that gas is decompressed, it loses heat (gets cold, the principle of
refrigeration). So, "Canned Air" comes on strong, and after a very short
time slows down as the evaporation reduces due to temperature loss.

With all that in mind, if you want to do what you suggest using compressed
air, then invest in "doing it right". Obtain an inexpensive tank-mounted
oil-less compressor *NAME BRAND* (I have a US-made reconditioned (by and
from) Stanley). Obtain a Filter/Dryer (one of a great many is linked).
Then,
get a variety of fittings for different applications. My most useful is a
flexible-wand device, very thin, that I can reach into very tight places
and
give moderate blasts of air. Mine fits behind/under the bench, and other
than startling the cats when it runs, is practically invisible. I have
linked a similar compressor to the one I have, but with a higher profile.
The price is right, however.

Now consider all the other things a good compressor will do for you. Spray
paint, particle blasting, run nail guns or staplers, start DynaJet engines
quickly and safely. I use mine to blow out the water pipes at our summer
house before winter. Works like a charm. Fill tires, automotive or
bicycle,
pressurize pipes for testing purposes, testing miniature steam engines,
and
much more. And, you can purchase after-market rechargeable spray cans, of
course.

http://www.amazon.com/Compressed-desiccant-combination-EQUIPEMENT-COMPRESSOR/dp/B00UEUYHOG

http://www.amazon.com/BOSTITCH-BTFP02011-6-Gallon-Oil-Free-Compressor/dp/B00BF4VQ44

https://www.youtube.com/watch?v=9Gyq3OSwUN8

http://forum.12ozprophet.com/threads/rechargeable-can.137582/

Sorry for the rant, but what is desirable is not always practical, and
what
is practical is not always convenient. This is a nice example of that.
After
purchasing a compressor in anticipation of a major carpentry project -
restoring our summer house after a flood - I am continuously surprised at
the number of additional uses I find for it. The summer house is now
raised
by 8', no more floods.

Peter Wieck
Melrose Park, PA




That might be your experience, I just want to blow the dust off heatsinks
every now and again.

I don't have a Summer House.




Gareth.

Dust + nicotine/kitchen grease/smoke/creosote = nothing what you describe
could handle. Point being, as stated, what is desired is not practical,
what is practical may not be convenient. FULL STOP.

Peter Wieck
Melrose Park, PA





Peter I really don't think you get this at all.

I only want to blow dust off a heatsink. I can actually do this myself by
taking a big breath and blowing hard.
But I really don't want to do that, and I don't want a large compressor plus
tank I have to store somewhere to do this for me.
I'd have bought one years ago if I had wanted to do so, I have been well
aware of these things for years.

Inventing reasons I need something else to shift nicotene, grease, smoke etc
is not helpful.
Full Stop.



By the way, I have an emergency tyre in the boot of my car, that claims it
is charged to 60psi.
I bet I could fit an attachment to this to provide short bursts of air that
would be far more effective than anything I can do by blowing hard, and it
has the right attachment for blowing up at any local garage.
http://www.puretyre.co.uk/tyre-information/tyre-definitions/space-saver-tyre/

I just need a smaller tank to do the same job.



Gareth.

 

[T i m]

On Tue, 29 Mar 2016 00:34:20 +0100, "Gareth Magennis"
<soundserviceleeds@outlook.com> wrote:

<snip>

I only want to blow dust off a heatsink. I can actually do this myself by
taking a big breath and blowing hard.

I've done that for someone on an overheating PC but using a thin tube
to better direct the air and get my face out of the way. ;-)

But I really don't want to do that, and I don't want a large compressor plus
tank I have to store somewhere to do this for me.

I've not read the entire thread but I have a very portable and
'adequate' instant / oil-free, non reservoir compressor I regularly
use for blowing out PC heatsinks and cases and have done so for many
years now (to good effect).

http://nbwelly.en.made-in-china.com/product/EeyQOYrlbXWg/China-1-5HP-Oil-Free-Portable-Air-Compressor-Without-Tank.html

http://tinyurl.com/hn3xonj

My mate (who owns his own PC repair shop) has the exact same and has
been using his for a similar period. The only thing against them, you
do need power and they are pretty noisy (but aren't generally running
for long). Personally, I leave mine just inside an external door, just
close the door on the hose and blow the item clean outside (so not so
noisy).

<snip>

By the way, I have an emergency tyre in the boot of my car, that claims it
is charged to 60psi.
I bet I could fit an attachment to this to provide short bursts of air that
would be far more effective than anything I can do by blowing hard, and it
has the right attachment for blowing up at any local garage.
http://www.puretyre.co.uk/tyre-information/tyre-definitions/space-saver-tyre/

I just need a smaller tank to do the same job.

As I believe has already been mentioned, you don't get a lot of
'compressed air' when you aren't compressing it to very high pressures
so you may be stuck with something that is still reasonably bulky. A
spare wheel may well be good enough and as you say, already has the
right connections, at least for inflation. ;-)

I bought one of these to do exactly the sort of thing you were talking
of:

http://www.toolstation.com/shop/Power+Tools/d40/Air+Compressors+%26+Accessories/sd3147/Trade+24L+Air+Receiver/p19659

http://tinyurl.com/zjonb68

I have to admit I've not used it yet but I hope to soon, both to
expand the capacity of my small silent workshop compressor (Bambi) and
to have something in the indoor workshop for the odd small blowing out
job (that I can re-charge myself down the workshop on the other
compressor).

Cheers, T i m

 

[Gareth Magennis]

"T i m" wrote in message news:3ekkfb9h7n1hagj2h45imjq8p3knmf1794@4ax.com...

On Tue, 29 Mar 2016 00:34:20 +0100, "Gareth Magennis"
<soundserviceleeds@outlook.com> wrote:

<snip>

I only want to blow dust off a heatsink. I can actually do this myself by
taking a big breath and blowing hard.

I've done that for someone on an overheating PC but using a thin tube
to better direct the air and get my face out of the way. ;-)

But I really don't want to do that, and I don't want a large compressor
plus
tank I have to store somewhere to do this for me.

I've not read the entire thread but I have a very portable and
'adequate' instant / oil-free, non reservoir compressor I regularly
use for blowing out PC heatsinks and cases and have done so for many
years now (to good effect).

http://nbwelly.en.made-in-china.com/product/EeyQOYrlbXWg/China-1-5HP-Oil-Free-Portable-Air-Compressor-Without-Tank.html

http://tinyurl.com/hn3xonj

My mate (who owns his own PC repair shop) has the exact same and has
been using his for a similar period. The only thing against them, you
do need power and they are pretty noisy (but aren't generally running
for long). Personally, I leave mine just inside an external door, just
close the door on the hose and blow the item clean outside (so not so
noisy).

<snip>

By the way, I have an emergency tyre in the boot of my car, that claims it
is charged to 60psi.
I bet I could fit an attachment to this to provide short bursts of air that
would be far more effective than anything I can do by blowing hard, and it
has the right attachment for blowing up at any local garage.
http://www.puretyre.co.uk/tyre-information/tyre-definitions/space-saver-tyre/

I just need a smaller tank to do the same job.

As I believe has already been mentioned, you don't get a lot of
'compressed air' when you aren't compressing it to very high pressures
so you may be stuck with something that is still reasonably bulky. A
spare wheel may well be good enough and as you say, already has the
right connections, at least for inflation. ;-)

I bought one of these to do exactly the sort of thing you were talking
of:

http://www.toolstation.com/shop/Power+Tools/d40/Air+Compressors+%26+Accessories/sd3147/Trade+24L+Air+Receiver/p19659

http://tinyurl.com/zjonb68

I have to admit I've not used it yet but I hope to soon, both to
expand the capacity of my small silent workshop compressor (Bambi) and
to have something in the indoor workshop for the odd small blowing out
job (that I can re-charge myself down the workshop on the other
compressor).

Cheers, T i m






Thanks, Tim.

I was a little bit hasty in suggesting a 60 psi spare tyre might be a
solution.
I tried it earlier to realise the valve is just designed for slow filling,
and has a very restricted airflow when deflating.
(Which I knew already but just plain forgot)



Point is, it doesn't take an awful lot of air to blow dust off a heatsink.
I usually brush off what I can before resorting to using my lungs and
blowing off the remaining inaccessible stuff.
Trouble is this always ends up with some in my lungs and nasal passages.


Cheers,


Gareth.

 

[pfjw@aol.com]

On Tuesday, March 29, 2016 at 5:35:00 PM UTC-4, Gareth Magennis wrote:

I was a little bit hasty in suggesting a 60 psi spare tyre might be a
solution.
I tried it earlier to realise the valve is just designed for slow filling,
and has a very restricted airflow when deflating.
(Which I knew already but just plain forgot)



Point is, it doesn't take an awful lot of air to blow dust off a heatsink..
I usually brush off what I can before resorting to using my lungs and
blowing off the remaining inaccessible stuff.
Trouble is this always ends up with some in my lungs and nasal passages.

I dunno - VW for years drove their window washing system from the spare tire (anyone else remember those days?). It was always a memory contest to make sure to refill the tire, or be stranded by the side of the road as the air lines often leaked. Tires were not-so-good in those days as well.

If all you need is that one lungful, consider a small portable tankless compressor ($15 at your nearest auto-supply) and a refillable aerosol can. No more than 100psi in most cases, but it would do what you lungs can do. For that matter, you could fill such a can from the tire, a double-schraeder fill fitting is cheap enough to fabricate.

Betcha if you do this, you _will_ wish for more...

Peter Wieck
Melrose Park, PA

 

[Tim R]

On Wednesday, March 30, 2016 at 1:35:34 PM UTC-4, pf...@aol.com wrote:

If all you need is that one lungful, consider a small portable tankless compressor ($15 at your nearest auto-supply) and a refillable aerosol can.

Do they make those? I could fill it from a bicycle pump.

 

[pfjw@aol.com]

On Wednesday, March 30, 2016 at 1:52:14 PM UTC-4, Tim R wrote:

On Wednesday, March 30, 2016 at 1:35:34 PM UTC-4, pf...@aol.com wrote:


If all you need is that one lungful, consider a small portable tankless compressor ($15 at your nearest auto-supply) and a refillable aerosol can.

Do they make those? I could fill it from a bicycle pump.

http://ecx.images-amazon.com/images/I/41atX8vvK3L.jpg

They sure do. Not much use for high volumes or high pressures, but portable and not overly expensive. The one linked is about US$18 or so. You will note that the one linked also states that it is NOT to be used as a duster. Further research will tell you that this is because there is a tendency to vastly over-pressurize if used for this purpose. Go up in price, and you can get one rated for air only.

http://www.amazon.com/Aluminum-Pneumatic-Refillable-Pressure-Sprayer/dp/B00JKED4MS/ref=pd_sim_86_2?ie=UTF8&dpID=31d3TD-aEQL&dpSrc=sims&preST=_AC_UL160_SR160%2C160_&refRID=1BJBMAA596F3ND47C2BK

Peter Wieck
Melrose Park, PA

 

[Ron D.]

Way back when, maybe 40+ years ago, I was a kid and there was a CO2 tank in the junkyard. Big and heavy. You won't find tanks in the junkyard anymore because of regulations.

I pump it up to about 160 PSI with a male to male coupler. I also have a valve to safely vent it before disconnecting.

My "compressor" has a small tank and is stationary. I can fill the tank and adjust the air in the car tires, but it doesn't last long.

A compressor (reed based) used for an airbrush would work for your application.

 

[Gareth Magennis]

wrote in message
news:fdb95475-9c6f-4db5-bd89-a31948044974@googlegroups.com...

On Tuesday, March 29, 2016 at 5:35:00 PM UTC-4, Gareth Magennis wrote:

I was a little bit hasty in suggesting a 60 psi spare tyre might be a
solution.
I tried it earlier to realise the valve is just designed for slow filling,
and has a very restricted airflow when deflating.
(Which I knew already but just plain forgot)



Point is, it doesn't take an awful lot of air to blow dust off a heatsink.
I usually brush off what I can before resorting to using my lungs and
blowing off the remaining inaccessible stuff.
Trouble is this always ends up with some in my lungs and nasal passages.

I dunno - VW for years drove their window washing system from the spare tire
(anyone else remember those days?). It was always a memory contest to make
sure to refill the tire, or be stranded by the side of the road as the air
lines often leaked. Tires were not-so-good in those days as well.

If all you need is that one lungful, consider a small portable tankless
compressor ($15 at your nearest auto-supply) and a refillable aerosol can.
No more than 100psi in most cases, but it would do what you lungs can do.
For that matter, you could fill such a can from the tire, a double-schraeder
fill fitting is cheap enough to fabricate.

Betcha if you do this, you _will_ wish for more...

Peter Wieck
Melrose Park, PA



Yes, no doubt I will.

I took 4 Power Amplifiers round to the nearby garage today to blow out using
their airline - we are more friends than business accomplices, and they will
happily let me do that for free.
But I have to load the amps in my car and drive it round there.

And yes, it's great to have a huge tank and massive pressure if you have the
space to keep it in.
Worked a treat, so it did.


I discussed this subject with them, and they pretty much said the same
thing - No, you need big pressure, you need big tank, small tank empties
quickly.
(They are Russian)
Also, big tank with high pressure, if explodes, you damage your building.
Big problem, very dangerous.

My workshop is actually now in a Music Shop. A big tank exploding in there
is not even worth thinking about.
A noisy compressor is not ideal either, and I don't have the space to store
it anyway, being as Retail Space in a city centre is rather expensive.




Gareth.

 

[Gareth Magennis]

I bought this after someone posted a link on this thread:

http://www.amazon.co.uk/FIT-TOOLS-Aluminum-Pneumatic-Pressure/dp/B00YF7Q1TI?ie=UTF8&ref_=pe_385721_126318711_TE_3p_dp_1




As it's aluminium (not aluminum) it should stand up to the water content
of compressed air sources.

I doubt very much it will blow out a Power Amp on it's own, but I have
plenty other uses for an air duster I don't have to keep buying in can form,
and it might just mean I don't have to always cart a big heavy amp to my
local garage to use their mighty airline, as much fun as it is.



Gareth.

 

Phil Allison wrote: "Gareth Magennis wrote:

I only want to blow the dust out of a power amplifier occasionally.
I can buy a can of air do do that, but it is expensive.

** You are labouring under a misconception.

So called "air duster" is not air, but liquefied gas - normally a fluorocarbon.

This allows a small can to hold a useful amount of gas, about 200 litres. A bottle of compressed air would be hold only a few percent of that amount with rapidly diminishing pressure as it is used - IOW almost useless.

You need a continuous supply of compressed air for your tasks.

The usual way to clean a fluff & dust clogged power amps is with a vacuum cleaner and a soft brush. A damp cloth gets most of what is left over.

In cases of sticky contamination or carbon soot from a fire only disassembly and washing in warm water and detergent works.


..... Phil "

And I have seen places like Staples charge up
to US$11(!!) per can for em, ostensibly to
price them out of the range of local teenagers
who love to inhale from them in their spare time
(which could be used doing homework, shoveling
snow or mowing neighbors lawns, soup kitchens,
being active church, or school athletics or 1,000
other useful things). !

 

G-Mac:

I bought mine at the local NAPA. Red, about 22"L
by 11" high, holds max. 125PSI, enough for replacing
air in our cars during fall & winter when they lose
pressure to cold temps. The garage renting the
space to one side lets me fill it 1-2x per year, and
their machine dutifully gets it up to 110-115lbs PSI.
(that last 10psi takes the longest, naturally!).


Most gas station courtesy hoses around here
cannot put more than 80psi into it, so they remain
as backup sources. Someday I will stop this tank
nonsense and just buy a small electric compressor.

 

[Phil Allison]

hekma...@gmail.com wrote:

And I have seen places like Staples charge up
to US$11(!!) per can for em, ostensibly to
price them out of the range of local teenagers
who love to inhale from them in their spare time

** A 400mL "duster" costs almost A$30 from my local parts supplier.

The store next door will sell you 700mL of Jim Beam for A$39.




..... Phil

 

[Phil Allison]

Gareth Magennis wrote:

I doubt very much it will blow out a Power Amp on it's own, but I have
plenty other uses for an air duster I don't have to keep buying in can form,
and it might just mean I don't have to always cart a big heavy amp to my
local garage to use their mighty airline, as much fun as it is.

** A small scuba diving tank would do the job, you can get 3L ones.

They hold air pressures up to 3000psi or about 200 atmospheres - so you get 600L of air.

Only problem is recharging one.


..... Phil

 

[JW]

On Fri, 1 Apr 2016 04:13:00 -0700 (PDT) Phil Allison
<pallison49@gmail.com> wrote in Message id:
<6446d7de-43d3-46e8-99c1-2a1634d8b4e3@googlegroups.com>:

Gareth Magennis wrote:



I doubt very much it will blow out a Power Amp on it's own, but I have
plenty other uses for an air duster I don't have to keep buying in can form,
and it might just mean I don't have to always cart a big heavy amp to my
local garage to use their mighty airline, as much fun as it is.



** A small scuba diving tank would do the job, you can get 3L ones.

They hold air pressures up to 3000psi or about 200 atmospheres - so you get 600L of air.

Only problem is recharging one.

Welding supply house should be able to do that.
http://igoswelding.com/gases/3609608

This place lists UHP Air

 

[Gareth Magennis]

"Phil Allison" wrote in message
news:6446d7de-43d3-46e8-99c1-2a1634d8b4e3@googlegroups.com...

Gareth Magennis wrote:

I doubt very much it will blow out a Power Amp on it's own, but I have
plenty other uses for an air duster I don't have to keep buying in can
form,
and it might just mean I don't have to always cart a big heavy amp to my
local garage to use their mighty airline, as much fun as it is.

** A small scuba diving tank would do the job, you can get 3L ones.

They hold air pressures up to 3000psi or about 200 atmospheres - so you get
600L of air.

Only problem is recharging one.


..... Phil









Been Googling a bit, and it seems PCP Air Rifles commonly utilise Scuba
tanks, and you can actually get hand pumps that will provide up to 250 bar.
If you are young and fit enough.

http://www.airgunbuyer.com/Showproducts.asp?cat=Charging%20Eqpmt.&SubCat=pumps




Gareth.

 

[Gareth Magennis]

Been Googling a bit, and it seems PCP Air Rifles commonly utilise Scuba
tanks, and you can actually get hand pumps that will provide up to 250 bar.
If you are young and fit enough.

http://www.airgunbuyer.com/Showproducts.asp?cat=Charging%20Eqpmt.&SubCat=pumps








And here's a small tank.
http://www.stealthunter.co.uk/mini-cylinder-field-charging-unit-1269-p.asp


Quite an expensive way to get compressed air, though!




Gareth.

 

[Michael A. Terrell]

thekmanrocks@gmail.com wrote:

G-Mac:

I bought mine at the local NAPA. Red, about 22"L
by 11" high, holds max. 125PSI, enough for replacing
air in our cars during fall & winter when they lose
pressure to cold temps. The garage renting the
space to one side lets me fill it 1-2x per year, and
their machine dutifully gets it up to 110-115lbs PSI.
(that last 10psi takes the longest, naturally!).

Most gas station courtesy hoses around here
cannot put more than 80psi into it, so they remain
as backup sources. Someday I will stop this tank
nonsense and just buy a small electric compressor.

I have a portable compressor from Harbor Freight, and a 240 VAC 60
gallon industrial compressor and tank in my garage. If I cant reach
something with 100 feet of air hose, I use the portable compressor. I
like to clean the dust and crud out of equipment before it goes into the
shop or into my house.

This is the type of portable I have. I caught it on sale for $40.
Then the 60 gallon compressor was given to me when a business moved and
it already had a pair of three phase compressors with 120 gallon tanks.

<http://www.harborfreight.com/1-3-hp-3-gallon-100-psi-oilless-air-compressor-97080.html>

 

[David Lesher]

"Gareth Magennis" <soundserviceleeds@outlook.com> writes:

Right,

I would really like a very small, cheap, air tank that I can charge every
now and again at the local garage (i.e. can be filled with a standard car
tyre pump).

Harbor Freight sells small pancake compressor+tank setups.
Item # 60637, Item # 95275

When on sale, it can be ~$40, as I recall. When it runs out of
air, you add some electricity and make more.


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