Looking to Buy an Air compressor

[VH_man]

well, i have a grand idea for a semi-auto, shell fed marble gun, but i kinda need a compressor first.

my question to yall is what is the smallest size air compressor you reccomend. im looking to spend no more than 120 bucks. right now im eying a .5 gallon air compressor, only 56 bucks.

thanks

[hi]

you would be very unsatified with a .5 gallon compressor. i have a 15 gallon one and it is jus right for my cannons.

if i had a .5 gallon compressor i would get about a shot a day with my big cannon.

i recommend nothing less that 8 gallons. you get what you pay for.

[VH_man]

what about 1.5 gallons?

im looking to use it for rapid-fire applications, not for filling up huuuugggeeee cannons.

and i forgot to mention in rapid-fire applications the chamber is SMALL

[Gepard]

If you've got a 120 bucks then go for the biggest you can.


Even if you get a small one, chances are you won't be able to use it for more than 15mins per 3/4hour as they have duty cycles so they don't overheat.

Michael

[VH_man]

oo heyyy does anyone know where i could just get the compresser part? i have a couple outdated propane tanks in my basement. those would make a mean air chamber. each one of those is like 2 gallons.

[hi]

the problem is that rapid fire cannons, even with small chambers, use tons of air.

with a big compressor it will charge itself, then turn off for a little while, then turn back on. a little one will keep running and running and never get a break.

even 2 gallon compressors are really only good for filling ballons, they will not be able to keep up with you, maybe a shot every 30 seconds or so, but thats not rapid.

if i were you i would check ebay, you can get a decent compressor there.

edit- again, check ebay for just the compressor part.

edit edit- i checked ebay, you can get an 8 gallon compressor, new, for about $110 with shipping. id go with that.

[rednecktatertosser]

My advice is to check the craigslist for your locality. I prefer it over ebay cause you can see what your buying in person before you decide.

[From_Hamsterdam]

what Psi can these cheaper compressors get up to?
is the out put regulated in any way? or do you have to buy a regulator?

my chamber is about 753cm cubed and i need to fire about 7 shots.
7x756=5271 cm cubed about 1.4 gallons for all shots

so if i get a 1.5 gal will the last shot be at a very low pressure?

this website has a handy unit converter:
http://www.engineeringtoolbox.com/volum ... _1034.html

[rednecktatertosser]

I think most of the cheap ones go to around 100-115 PSI and a few go to 125PSI.

[frankrede]

what Psi can these cheaper compressors get up to?
is the out put regulated in any way? or do you have to buy a regulator?

my chamber is about 753cm cubed and i need to fire about 7 shots.
7x756=5271 cm cubed about 1.4 gallons for all shots

so if i get a 1.5 gal will the last shot be at a very low pressure?

this website has a handy unit converter:
http://www.engineeringtoolbox.com/volum ... _1034.html

Only the first shot will be a full pressure

[From_Hamsterdam]

Only the first shot will be a full pressure

so it would be cheaper to make a secondary chamber and pump it up using a normal pump?

[rednecktatertosser]

Cheaper, yes. More practical, No.

[origin unknown]

This factory reconditioned compressor is $20 over your spending limit, but It is your best buy with a 5 hp electric motor, holds 17 gallons, and has a running pressure of 150psi. Here it is: http://www.amazon.com/Campbell-Hausfeld ... 54&sr=1-29

[noname]

I managed to find a 5 gallon 3 hp compressor at Kragen Autoparts for only $90. The compressor pumps fast enough to let me shoot any of my strafers for over a minute (holding down the trigger) without th pressure dropping below 80 psi.