KMS - 12V compressor on sale

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Fantom

Fantom

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So I am looking through another flyer from the store I love to hate (it keeps eating my pay cheques) and stumbled upon a 30 Amp motor, "heavy duty construction" (no idea what that means), with accesories (not specific), 12Volt Air Compressor for $99.95 (reg 139.95). Does not say what brand but the picture is pretty! Sales on this month.
 
For 24 volt - buy two and wire them in series and feed them into a storage tank with a pressure switch, which trips them on when the pressure drops below 90 psi and off at 120 psi - like the way ARB compressor unit works.
 
Well, I don't want to buy another one, they each draw 30 amps. You've got me thinking that maybe I could just put some other 12 Volt item, like a resistor or something, in series with the compressor. A pressure tank would be nice, but if I'm only going to use it for 10 minutes, do I really need the whole enchilada? I do have a Solar Converter but I think its only good for 20 amps.
 
If it's really cheap just run it on 24 volt. why not? Guys run 12 volt winches on 24 volt. Shorter life is probably going to happen..


30 amps running with 24 volts is going to be about 15 amps. So a bit better. 30 is huge for most 12 volt systems. Your alternator on a 12 volt is less than 60. What is it on a 24 volt cruiser 30?

The York is a nice mod. Hard to find the extra pulley though, thanks Greg for mine!

What you need to know with a 30 amp model is the cfm, and calculate how long it will take to re-fill 4 tires to road pressure. I guess if the engine stays running it should handle it fine.
 
Well the guys on Yotatech were raving about this little unit. They say the compressor pumps up a 35" tire in less than 4 minutes. I was just thinking that if I put some 12 volt load at low amperage in series with the compressor, then maybe it would work out ok. I'd probably only use it about 5 times a year unless I start doing everybody else's tires too. Anyway, I'd leave the motor running and turn off all the other accessories.
 
might worth while to pull the electric motor off it and go see an electrical shop. I wonder if it can be re-wound to let you run it at 24 volts?

http://www.bcae1.com/resistrs.htm read here about using resistors as voltage dividers.

A 30 amp draw compressor though is 360 watts rating. So the resistor would need to very robust. Cooling fins and all.

To halve your voltage, another accessory would need to be considerable in voltage dropping capacity.
 
Scalp said:
I do have a Solar Converter but I think its only good for 20 amps.
Click to expand...

Bill, if it is the load balancer then you simply have to wire the converter into load balance only when the truck is running. Then, simply insure the truck is running when you use the compressor, and hook the compressor to either battery (do not use chassis ground). I have an Extreme Air compressor...12V, and that is how I use it on the BJ74. No problems. A simple way is to use the HD marine switch ala Stones install, or use a HD 24V relay tripped from the underhood powerbox.

hth's

gb
 
This the one on sale?

http://www.kmstools.com/main.php?scripts/products/cat.php?3


It looks very similar to the one I bought awhile ago from t&t

https://forum.ih8mud.com/showthread.php?t=59630

http://www.airzonerecreation.com/catalog/products/1067.htm


I've yet to do really use it, by the time the wheeling day is over and its time to air up, i'm to tired/lazy and just drive home at whatever pressure I was at. Truck still handles fine and the ride is much cushier. I fill up the tires at home with my 120v compressor, which seems to be crapping out again, but thats another story ( I guess there was a reason it was a reconditioned unit on sale)
 
brownbear said:
might worth while to pull the electric motor off it and go see an electrical shop. I wonder if it can be re-wound to let you run it at 24 volts?

http://www.bcae1.com/resistrs.htm read here about using resistors as voltage dividers.

A 30 amp draw compressor though is 360 watts rating. So the resistor would need to very robust. Cooling fins and all.

To halve your voltage, another accessory would need to be considerable in voltage dropping capacity.
Click to expand...

Brownbear: thanks for the info, I probably don't want to go to the expense and trouble of having the motor rewired. Tthe Automotive Electric info was good. :)


Greg: Bill, if it is the load balancer then you simply have to wire the converter into load balance only when the truck is running. Then, simply insure the truck is running when you use the compressor, and hook the compressor to either battery (do not use chassis ground). I have an Extreme Air compressor...12V, and that is how I use it on the BJ74. No problems. A simple way is to use the HD marine switch ala Stones install, or use a HD 24V relay tripped from the underhood powerbox.

Yes the Solar converter is a load balancer. Thanks for the info, I will probably try this technique. :D

~Bill
 
Scalp said:
Yes the Solar converter is a load balancer. Thanks for the info, I will probably try this technique. :D ~Bill
Click to expand...

Bill, shoot me a note from the info@ address for G&S and I will give you a bunch of info on the converter/load balancer.

gb
 
Tjflex:
I bought the air compressor at PepBoys Auto Accessories in Daytona Beach, Florida. I think this is a big chain of stores right across the USA. If you google Master Flow Tsunami MF1050 you will get lots of hits and endorsements. I see that the Canuck Buck is at par right now!
~Bill
 
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