PTO driven air compressor - would it work ?

[VladTepes]

Just for the sake of discussion.

What would be involved in using the PTO to drive an air compressor and could it be done at a reasonable price ?

I stress I am not contemplating actually doing it (my max air does me just fine)


Unless...... :twisted: :wink:

[camel_landy]

It probably could be done....

Mind you, if you're not running aircon on a 200/300TDi then you could always use the Aircon compressor mounting (with Aircon compressor if you wanted...).

Mark.

[VladTepes]

But I AM runing aircon.

It's not England here you know :roll:

It's sunny for a start style_emoticons/<#EMO_DIR#>/tongue.gif

(and yes I am reading paul's thread on the air con compressor thingy)

[DEFENDERZOOK]

thats an idea ive been thinking about but havent looked into it yet.

i want to run a york compressor off the PTO cos it wont fit under the bonnet....

[HSVRangie]

Do it

Michael.

[nutgrass]

http://www.4wdworld.com.au/products/maxidrive/

Not sure how up to date this is, but looks like MaxiDrive can gear up there PTO drives to suit.

[Hymie]

Driving the Lawnmower at work today I had the same idea and as soon as I got home searched the forum to see if anybody else had the same idea.
Has anybody actually done it yet?

[uninformed]

LR did this back in the 50s,60s,70s, 80s etc.... I think they were high out put units for construction work. Another option would be to get a compressor from a semi, drive it with a hyd motor and then get the MD hyd pto to run it......if you went this route, you could design the system with a winch in mind and have the whole set up....the MD stuff will drive a pump that will put out 60ltrs/min no worries

[123rover50]

Hey we have been talking air compressors on another thread for ages.
PTO and engine belt driven.
Get with it.

[Hymie]

Hey we have been talking air compressors on another thread for ages.
PTO and engine belt driven.
Get with it.

Thanks, a link to the thread and less sarcasm would be nice.
I only went by the search result that matched my keywords, silly me.

[Lotz-A-Landies]

I have a SIIb with a 4 cyl PTO driven air compressor under the tray, it was used in service a maintenance truck for broad acre wheat harvesters. It will run air tools without problem. I don't know if you would need that much air though, particular with 50 litre air tanks. :D

[stevo]

I run a hydraulic gear pump off mine to run the hyd winch which used to run off the power steering pump, this is on a Disco II

[blitz]

[QUOTE=uninformed; Another option would be to get a compressor from a semi, drive it with a hyd motor and then get the MD hyd pto to run it......if you went this route, you could design the system with a winch in mind and have the whole set up....the MD stuff will drive a pump that will put out 60ltrs/min no worries[/QUOTE]

I think this would be the most efficient and versatile way to go

[superquag]

There's a mob in the US who make winches that run from your power steering pump...

A second PS pump would be easier to mount for those with crowded enginerooms, allowing the air pump and its motor to be mounted anywhere, say under the back somewhere. Or run it off your PTO

Here's a link:- http://www.milemarker.com/products/hydraulic.html

[wrinklearthur]

Today, I tried to bid on a PTO in the UK, it didn't like me doing that, as they only post local! :mad:

There are some nice ones are on line at the moment from Germany, but as always, the price plus postage means a second mortgage. :(

Lets design and make our own PTO's, as most of the later Land rovers have the LT230 transfer box. The top cog can be bought cross drilled and with the engaging dogs, for those who's Disco's, don't have them. :thumbsup:

[uninformed]

Have you tried MR Automotive.....they have pto's. I have a milemaker running off a MD pto with cross hyd pump.

[wrinklearthur]

Have you tried MR Automotive.....they have pto's. I have a milemaker running off a MD pto with cross hyd pump.

Hi Uninformed

Roughly what did your winch setup cost and is it possible, to add a compressor directly to the MD PTO?

[uninformed]

to be honest I cant remember, as I peiced it together over time and fitted it up with the help of a friend. Component wise I have:

9000 Milmaker winch (same winch as the 10000 with a slightly different motor, slighty faster...)

MD hydraulic pto
Cross Hydraulic pump
pressure relief valve
solinoide control valve
remote 12v hand control
spin on oil filter and adaptor housing
in tank filters
resivour tank
hoses and fittings

On my winch I got a double over center type valve block fitted directly to the motor. As these winches have no brake, in the event of a hose faliure, fluid loss I didnt want the winch to unspool.....

as far as running another motor/air compressor, Im guessing I would probably need another or different solinode control, or some type of valve that would divert the hyd fluids to/from the aircomp/motor but sill running through all the filters and pressure relief valve. Assuming that the aircomp motor runs the same/ish flow rates and pressure.

With hyd I believe its all about making the system equal across all fittings/hoses/pumps/motors etc regarding flow and pressure


The winch does work very well. Note, no engine = no hydraulics

[uninformed]

to add the compressor directly to the pto......hmmm, I think the input on the pto is female and has 1 or 2 spline options and mounting options. This would require finding a air/comp that would do this ??????? Now these ptos were specifically designed to run hyd pumps. The other chain driven type pto had a keyed output shaft....and MD use to do a rear facing type. The beauty of hyd is its flexability of mounting etc. Plus they can be very strong systems. Set up cost is not cheap, but to compare a hyd winch with an electric type is a non event, even when the speed is comparable, the hyd will work all day with out breaking a sweat.....its more of a comersial type set up.

[blitz]

There's a mob in the US who make winches that run from your power steering pump...


Bamford who make the winches for the Australian army landrovers also make them up to about 20 000lb for 4wds and then up to huge for industrial purposes. I spoke to them some years ago about a high speed 15 000lb winch set up and they were more than willing to pretty much assemble one to any specs, as it was all off the shelf stuff they already had.

I didnt go through with it as I picked up a warn 9500lb new for a very good price, having said that in hind sight I wish I had gone for the Bamford one

Anyway you could see them and get all the necessary parts to set it up and put a air compressor onthe end instead of a winch

[uninformed]

Bamford were definitly on the SIIA army vehicles, but I believe that the 110's had Tomas pto worm wheel winches. These were up-speced over the civi (equivilant) model. I nearly pulled the trigger on one back in late 90's-00. I think Tomas no more, now maybe taken over by ATS (advanced trailer spares) in Archerfield.

Bamford do still make winches, and a few years ago working on a 2 speed elec/hyd? model....

check this mob out: Advanced Trailer Spares (http://atscables.com.au/) Diana, they sell superwinch and may be of some help to you with yours and your set up???

[Jimmy93]

Reviving an old thread...

I keep thinking about adding a compressor to my pto, but there isnt much room under there (forward facing pto). So I was wondering if I could use an 4bd1 power steering pump connected to my pto as a hydraulic pump and then have a hydraulic motor else where to run a compressor.

Is this a ridiculous idea? Im guessing it will all be pretty heavy for something a simple electric compressor can do, but where is the fun in that!!

[Tins]

Reviving an old thread...

I keep thinking about adding a compressor to my pto, but there isnt much room under there (forward facing pto). So I was wondering if I could use an 4bd1 power steering pump connected to my pto as a hydraulic pump and then have a hydraulic motor else where to run a compressor.

Is this a ridiculous idea? Im guessing it will all be pretty heavy for something a simple electric compressor can do, but where is the fun in that!!

Hey, if Ferrari can make a 4WD supercar by running a normal RWD gearbox/tailshaft/Diff for the back wheels, and another gearbox/diff running off the front of the engine for the front, and make it work ( they did this so there would be no driveshaft under the V12, thus keeping it lower, for CG reasons ), how could your idea possibly be ridiculous?
On a serious note, do you know what sort of pressure/time the pump can deliver? There are some seriously efficient hydraulic motors out there these days. But electric stuff is far easier to place and wire... So, I guess it really depends on how much "fun" you want to have. Just so you know, I have often fantasised about having a PTO powered pump driving a cut off saw so I can cut down the bloody gates that keep appearing on what were tracks... ( Shh, I didn't say that...)

[Jimmy93]

You would want the gearboxes to be light haha

I believe it is 12cc/rev, with relief valve pressure at 1208PSI.

It would be good having a descent air compressor, then all the air tools can be used on it and im sure you could find an air driven angle grinder haha

[VladTepes]

From what I gather Ferrari are likely to have a bigger development budget than Jimmy.

[Tins]

From what I gather Ferrari are likely to have a bigger development budget than Jimmy.

Yeah, possibly....

However, it just shows that a Heath Robinson solution can be made to work.