Outer Limits 4x4 Board

got a mate who's looking into designing/building/selling a heavy duty 12v compressor to run off ur 4by battery.... capable of running air tools and pumping a 35" tyre from flat in around a minute.

will be aiming for up near 8cfm flow and hoping to keep price down around $1000...

who'd be interested in a product like this? what's the competition like from things like endless air or airup?

Pricey. You'd be limiting yourself to a fairly niche market, like comp guys only, with that price.

RoldIT wrote:Pricey. You'd be limiting yourself to a fairly niche market, like comp guys only, with that price.

Maybe... maybe not. I reckon anyone who'd buy a brand new winch would be a potential customer for a compressor of that sort.

Having said that, I don't think I would buy one. I'd sooner go the engine-driven compressor option which is cheaper if you DIY, and probably still cheaper even if you buy everything.

Jason

would have to be more price competitive with current market offerings.

I reckon $500 would be closer to the mark if you want the non-competition crowd.

Cheers,

Scott

stumped wrote:got a mate who's looking into designing/building/selling a heavy duty 12v compressor to run off ur 4by battery.... capable of running air tools and pumping a 35" tyre from flat in around a minute.

will be aiming for up near 8cfm flow and hoping to keep price down around $1000...

who'd be interested in a product like this? what's the competition like from things like endless air or airup?

Endless air at around $600 with mounts is your main competition in that field, or drop $300 off that if you use an old air conditioner compressor, then drop another $280 off the remainder if you can make your own mounts.

most good compressors are around $500 + - a bit... $1000 would be as others have said, fairly closed market to comp people, and a few that like the bling bling accessories and never leave the tar.

YCMBGE

around $500 would be right

i reckon a compressor designed to produce a lot of air from a commonly used motor would be the go. Look at the way the Sanden compressors work (a rotary setup with lots of small pistons) but size it for a common 12V electric motor (like those cheap 2000-4000lb winch motors on eBay)

I reckon there could also be a market for a pump which uses your winch to drive it, to hang off the bullbar when needed. Thats what I am going to look into when I get a winch. I am sure there is a market for a multi-purpose winch - after all its a bloody big motor that should be useful for something more than pulling a cable.

I'm sure there is already a high output compressor available powered by essentially a winch motor, reviewed in one of the 4by mags a couple of months ago.

Another thing, why are those winch-motor compressors so bloody expensive?
I can understand the motors costing a bit but with all the cheap 240V compressors around can a cheap pump be mated up to one?
I mean these things are as much as a full-on winch with gearbox, cable, fairlead and drum!

hey stumped,

how are u going to build em, like style,

piston, vane, screw, gear, etc,

also do u know how many kw you'll need, to move your pump, cause, i think your going to need a big motor to push it.

From my exp it must take about 10 hp to drive a Sanden (endless air type) at 100psi plus.
Ive spent a lot of money burning out winch motors trying to get one to work.
OK up to about 60psi then current draw goes thru the roof keeping it turning at a reasonable speed.

I like the 12v unit sold by (Bigballs I think) for a $1000 but cant afford it :(

Bazzle

Oppissite Lock sell one at around $1200.00 that uses a what appears to be a winch motor connected to a York style A/C compressor, they demo it at 4x4 shows running rattle a gun with out a air tank but it is a bulky unit thou!
Cheers

for those sort current draws you basically need to motor running (like a winch) ..
It would be a pretty hard price tag to swallow when you can do an endless air kinda setup for fewer $$ and rin it forever without worrrying the charging system. As you could easily run a compressor of this tyre of r 20 mions on a club type trip where you have bulk air, so you end up airing up everyone else.
for that kinda dosh a few comp guys may go for it .. but you can also get something well proven for fewer $$.. and that is what comp guys are after. A product that they know will continue to work uner the toughest possible conditions..

that said I sincerly hope that your mate makes a few $$$ out of it and the price can drop to a cost that we mortals can afford ..

thanks guys.... gonna go talk to my mate and see what other info i can get outta him. not sure how much i can say yet, cos some of it would be secret squirrel.

i think if he goes ahead with it, it's gonna be pretty good value for money, he's got his head screwed on right...

IMHO current draw is an issue......
For similar money you couldn't pry with my 9 CFM York from my cold dead fingers......
It fills my 10L tank from 0 to 130 PSI in approx 10 seconds

$139 2.5hp compressor from supercheap and $200 gennie from ebay

But really most guys on here are after the biggest "bang for the buck" and I would think this flows onto the mainstream "joe average". Then again anything is only worth what people are prepared to pay. Just because you want to set the price at $1000 dosent mean it won't sell but maybe not as fast as you would like or need.