potential high flow rate 12v air compressor

[stumped]

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?

[RoldIT]

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

[chimpboy]

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

[Area54]

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

[-Scott-]

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

Cheers,

Scott

[bogged]

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

[grazza]

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.

[DamTriton]

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.

[grazza]

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!

[customhilux]

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.

[bazzle]

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

[Ingenious-Eng]

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

[Guy]

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 ..

[stumped]

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...

[Wooders]

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

[Nev62]

$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.