Compressor, pulling the trigger

He Man · July 11, 2009, 09:55:19 PM

if i get the eaton one it ll be fine. the HF sand blaster im looking at is 6-25cfm @ 100psi. the eaton spits out 20cfm at 100psi and has a continous duty mode.

the 4 story building.... its a NYC apartment building, your not doing more than a 20x50feet face thats including the area of the windows. ive seen the guys do the near by buildings with ~20hp gas powered one, not much bigger than the 25 gallon ones in about 5 hours from start to finish.

its not like im blasting paint off the brick, its just cleaning the nyc smog. If you were blasting paint of a brick wall, yea im going to agree with you, ive seen this dude blast a 4 story buliding on a corner (2 faces, each face probbaly twice the size of the one i plan on shooting), and theyve been working at it with a truck sized compressor for 4 days before they finished. it had about 1/2 inch of paint on it!!!

im crazy, but i aint crazy enough to waste my time doing someting way over my head. The quote i got on cleaning the face of the building was $4,000 dollars. yea i think splitting the job on a 5hp continous duty compressor into two days is worth my time. Plus i can finnaly get the make the beast with two backsing graffti of my the side of this dudes house...which is actually the wall that is adjacent to my garage. the graffiti removal guys want $1500 bucks to soda blast it off!!!! and i dont mind if it was artful grafftii but it looks like shit. its just covered with grout but you can still see it since the grout is a differnt color.

man im thinking of all the things i can clean. LOL

Langanobob · July 12, 2009, 12:43:42 AM

OK, I'd just assumed you were removing paint. Sounds like just cleaning the brick is a LOT easier. But, for cleaning, wouldn't a good pressure washer work well, and be less of an environmental mess than a sandblast? (don't mean to be continually second-guessing your efforts, just askin...)

ducpainter · July 12, 2009, 04:03:34 AM

Quote from: He Man on July 11, 2009, 04:42:43 PM
<snip>
I just looked at my breaker, i have a two 40amp 110vs comming up, anotehr 40amp two pole breaker is alot! How many amps do most 2 stages take anyway?

Both my single stage and my two stage had 5 hp motors that used 21.9 fl amps. That requires a 30 amp breaker.

Kopfjäger · July 12, 2009, 07:48:13 AM

This thread is uselees without pics.

He Man · July 12, 2009, 10:09:44 AM

Quote from: Langanobob on July 12, 2009, 12:43:42 AM
OK, I'd just assumed you were removing paint. Sounds like just cleaning the brick is a LOT easier. But, for cleaning, wouldn't a good pressure washer work well, and be less of an environmental mess than a sandblast? (don't mean to be continually second-guessing your efforts, just askin...)

Water could work, i would just need a pressurized water blaster + some chemicals, with a soda blaster, it doenst seem to get that much more dirty since it sprays water while it shoots the soda, removing about 50% of the powerder residue. Plus powder is 100% environmentally friendly. That means i wont get a cited for a ticket when Mr. DEP comes in his prius looking to ticket blitz. But water would be cheaper, id have to look into how effective it is at remvoing smog on brick.

21.9 amps on the motor isnt much more than an AC, thats not so bad. Ill call up eaton on monday and see waht their actual usage is. I think they require a 40amps just because of the continous duty mode. From what it seems, the compressor only takes about 100 seconds to fill up 60 gallons at 125psi. I already have a 220v single phase 6 gauge comming out to the 220v outlet. 6 gauge is good for up to 50amps i believe. so it should be fine when i do need continous duty.

ducpainter · July 12, 2009, 05:41:10 PM

I think they require 40 amps because the motor draws more than 30 on start up.

red baron · July 12, 2009, 07:03:57 PM

The performance of any of these relies on how it's plumbed in.

ducpainter · July 12, 2009, 07:07:00 PM

Quote from: trouble on July 12, 2009, 07:03:57 PM
The performance of any of these relies on how it's plumbed in.

He obviously knows that.

Kopfjäger · July 12, 2009, 07:15:22 PM

Quote from: painter on July 12, 2009, 07:07:00 PM
He obviously knows that.

He Man · July 12, 2009, 07:35:11 PM

Quote from: trouble on July 12, 2009, 07:03:57 PM
The performance of any of these relies on how it's plumbed in.

waht do you mean?

red baron · July 13, 2009, 08:05:24 AM

Quote from: painter on July 12, 2009, 07:07:00 PM
He obviously knows that.

another example of my overly requested simley.

ducpainter · July 13, 2009, 01:30:32 PM

Quote from: trouble on July 13, 2009, 08:05:24 AM

another example of my overly requested simley.

...but...

aren't you gonna answer him?

You can flip me off in person when you head east before dimby.

Quote from: He Man on July 12, 2009, 07:35:11 PM
waht do you mean?

Langanobob · July 13, 2009, 01:46:08 PM

He Man, too bad that you're isolated in NYC as I probably have everything you need for this building cleaning job, but I'm 3,000 miles away.

Regardless of whether you go with water or other media, you should practice on an inconspicuous (can't believe I spelled that right the first try

) area first. If you get the nozzle too close, or don't keep the speed even you can easily go too deep in areas and end up with a real splotchy looking job. But probably still better looking than a smog coating.

He Man · July 13, 2009, 06:35:56 PM

Thanks for the heads up langanobob, i woudlnt say im isolated from nyc, your just isolated from me.

i got the quote back from eaton, the motor only eats ~25-30amps when its running the 40amps is prevent it from jumping during on/off situations. but its also a whopping $350 bucks to ship

Harbor freight only charges $75, and ive been looking at local tool shops and wholesalers, grainger, reiss and such. some of them dont carry, or have only a limited supply. I cant believe its so hard to find one locally. of all places too.

NAKID · July 13, 2009, 06:49:45 PM

Have you tried pawn shops?

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Compressor, pulling the trigger