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Air systems

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Matt,
I was going to take this query off list but perhaps the others would be
interested in the answer as well?
Is the sort of system you're talking about good enough for running
tools? As in grinders, drills, that sort of thing? What's the best size
tank if you want to keep it as small as possible but still be useful?
Jon.
P.S. Yes, I know I've changed the subject on a reply, but it's still in
the context of the original thread!
 
Hi. If you used 2 x 2.5 gallon tanks that would be enough to run air tools. An on board system will never be as quick to recharge as a proper garage compressor unit, as a garage compressor will run at a minimum of 15cfm (cubic feet per minute). The 12 volt compressors I have go up to about 2.6cfm. But having said that if you have 2 of the 2.5 gal tanks, or a big tank from a lorry, then you could use an air tools for maybe 30 seconds before the compressor kicked in to refill the tanks.
The main use for an on board system is realy to re-inflate tyres, operate air locking diffs, operate air suspension (something I'm looking into) and inflating footballs, boats, air beds, etc.
Going back to the air suspension. I am doing a load of research at the moment regarding air springs. I want to provide a kit that will give better suspension travel and better load carrying. I reckon I could sell a complete kit for about =A31000. This would be 4 x air springs (to replace your coils) 4 x new shocks, on board compressor kit with tank etc, 4 x dash mounted (if you can get your dash apart to fit them!!!) switches and gauges for each spring. As I said, I'm just researching at the moment, and if I do provide a kit it will require a good weekend to fit it and a bit of fabricating, but nothing too tricky. You'd be able to go right down to the bump stops, or right up in the air, maybe giving about 10 inches of travel. And each corner would be independently controlled.
all the best,
Matt
Derbyshire UK.
1991 HDJ80
Landy V8
Bicycle pump and calculator
----- Original Message -----
From: Jon Wildsmith
To: [Email address removed]
Sent: Tuesday, February 15, 2005 4:26 PM
Subject: RE: [ELCO] Air systems
Matt,
I was going to take this query off list but perhaps the others would be
interested in the answer as well?
Is the sort of system you're talking about good enough for running
tools? As in grinders, drills, that sort of thing? What's the best size
tank if you want to keep it as small as possible but still be useful?
Jon.
P.S. Yes, I know I've changed the subject on a reply, but it's still in
the context of the original thread!
--
European Land Cruiser Owners Mailing List
Further Info: http://www.landcruisers.info/lists/
 
I would be interested to know what you get out of a belt driven York
compressor - this is a mod that many 80s drivers have gone for,
although fitting it is a bit fiddly.
--
Regards,
Julian Voelcker
Mobile: 07971 540362
Cirencester, United Kingdom
1994 HDJ80, 2.5" OME Lift, ARB
 
On Tue, 15 Feb 2005 21:46:44 -0000, Matt Savage Land Rover
<[Email address removed]> wrote:
Running air tools off an onboar air compressor is another issue of
duty cycle. Considering that most compressors generate air pressures
in the region of 10 - 15 bar, compressed volume in the tank is on the
low side. What matters here is how quickly the compressor can replace
air in the tank. Most workshop tools use about 7.5 - 8 cfm, and the
compressor needs to keep up with the tool. If 12 volt compressors go
up to about 2.6cfm, that means you can run the tool for a while off
the tank then wait for the compressor to refill the tank, and so on.
I can confirm that with regular workshop tools the 8cfm York SC (plus
a 20L tank) offers a reasonable performance (like the air gun for
undoing wheel nuts). An air grinder requires more sustained action, so
it uses more air and is obviously less efficient. I haven't tried
other tools yet.
I am wondering if any one has come across a hydraulic jack powered by
compressed air. I know about long reach hydraulic jacks that act like
a hi-lift but I never heard about one driven by a compressor.
--
Rgds,
Roman (London, UK)
'92 HDJ80
 
yeah, I can get these. They are about =A3450 from memory. But fitting is a real pain. But they do kick out a whole load of CFMs. I think they are rated at about 12 cfm!
Cheers,
Matt
----- Original Message -----
From: Julian Voelcker
To: [Email address removed]
Sent: Wednesday, February 16, 2005 8:45 AM
Subject: Re: [ELCO] Air systems
I would be interested to know what you get out of a belt driven York
compressor - this is a mod that many 80s drivers have gone for,
although fitting it is a bit fiddly.
--
Regards,
Julian Voelcker
Mobile: 07971 540362
Cirencester, United Kingdom
1994 HDJ80, 2.5" OME Lift, ARB
--
European Land Cruiser Owners Mailing List
Further Info: http://www.landcruisers.info/lists/
 
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Matt
On the subject of compressors...are the Viair 500 and 550 portable
compressors or are they much bigger than the most powerful of the portable
compressors on your site? I=B9m after something that will inflate and deflate
BFGs on my vehicle. I=B9m not looking to power tools, diffs, suspension...but
like anyone, I want to be able to do it as fast as poss and not get
sunstroke waiting for the tyre to inflate. I would also prefer to have a
moveable unit rather than a fixed one under the bonnet. Would prefer to
avoid the complexity of the fitting.
Thanks
--
Jeremy Llewellyn-Jones
07831 458 793
 
Re: [ELCO] Air systemsHi Jeremy,
The 500 and 550 are for an onboard system, and they would not be idea for a portable kit. You need the 40043. This will get your tyres up in no time.
Cheers,
Matt
Derbyshire UK
1991 HDJ 80
1950 Landy 80"
1995 Audi 80
----- Original Message -----
From: Jeremy Llewellyn-Jones
To: [Email address removed]
Sent: Wednesday, February 16, 2005 4:01 PM
Subject: Re: [ELCO] Air systems
Matt
On the subject of compressors...are the Viair 500 and 550 portable compressors or are they much bigger than the most powerful of the portable compressors on your site? I'm after something that will inflate and deflate BFGs on my vehicle. I'm not looking to power tools, diffs, suspension...but like anyone, I want to be able to do it as fast as poss and not get sunstroke waiting for the tyre to inflate. I would also prefer to have a moveable unit rather than a fixed one under the bonnet. Would prefer to avoid the complexity of the fitting.
Thanks
--
Jeremy Llewellyn-Jones
07831 458 793
 
On 16/2/05 20:38, "Matt Savage Land Rover" <[Email address removed]> wrote:
> You need the 40043. This will get your tyres up in no time.
> Cheers,
>
Nice one Matt. I=B9ll be in touch.
Jeremy Llewellyn-Jones
Mob: 07831 458 793
--
 
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