required air flow for small sandblaster

[GEB]

80gl 2 stage comp go for around $800-$1300 new.
Here's the deal, your not suppose to wait on your compressor!
Most any 80gal will work very well for most of us.
I use my air more than any other tool that I have...and yes I have tools.
Clean oil and filters even a cheap one will last for years, mine is 16 yr's old.
Gene

 

[SPYDERLK]

YES. The Hi side $# it very realistic. Its worth it.
Larry

 

[GT2]

Its been a long time, but when I was in high school I had a job at an equipment rental yard and I had to blast several trailers.
We used a 100cfm trailer mount compressor, like jack hammer compressors.
We also used a pressure pot sand blaster ( I think it held 2 bags of sand at a time). I wore an air fed hood.
Even with this serious equipment it took many hours to get the job done!
If you have a lot of area to do, or some very tough rust to get off, my suggestion is to go rent this equipment and get it over with!
Your going to spend forever with the little compressor systems.

 

[PILOON]

HP rating is voltage X amperage.

Now, if you use startup amps (rather than run amps) you get a higher HP.
Also;
Single phase is stated at 110, 117 or 120 volts so if the mfg uses the 120 figure and then quotes the starting amperage he will get a much higher HP rating than the the guy that uses 110 at run amps.

In acuality REAL one hp 110VAC will draw more than 15 amps running.
(Just look at the amps on the label of an industrial 1hp motor such as Baldor)

Funny how those 'imported' 1 hp rigs never blow the standard 15amp CB, even when you have a half dozen lights in the same circuit.

 

[SPYDERLK]

15A at 110 = 1650W electrical input to get 746W of mechanical power out. Thats pretty inefficient >50%. The better single phase motors are about 70% efficient. I definitely agree with the inflated claims on some special duty motors tho. If you EVER see less than 10 or 12 amps per rated HP at 110V a hearty suspicion should result.
Larry

 

[Renze]

Yes, hiring an Atlas Copco has also come to mind... then i'd just need to convert an old compressor barrel to sand bin....

I think i'd just have to "stick" with the rough wire brushing and thick layer of Tectyl bodywork undercoating from the auto shop, it bites its way into the rust pretty nice.

 

[Donman]

I have a small HVLP paint sprayer that has a vacuum cleaner type air supply motor that really works good and I often wondered if that concept could be used for sand blasting. One weekend I almost started to make a sand trickle device for the end of an electric leaf blower to see how the concept would work (or how much sand I could get in my eyes). What do you think - would High Volumn Low Pressure air carry sand with enough wallop to blast rust?

 

[Bird]

What do you think - would High Volumn Low Pressure air carry sand with enough wallop to blast rust?

Since I've never tried it, I guess I can't say for sure, but as for what I think . . . I don't think it would work at all. I think most paint guns are low pressure while most sandblasting is done at high pressure.

 

[DieselPower]

I to doubt the high volume low preasure system would work for a sandblaster. The sand wouldn't be moving fast enough to do any damage to whatever you were trying to remove.

 

[Donman]

I live ten miles from the Lake Michigan shoreline and know from my former life as a residential builder that none of the cottages on the shoreline used aluminum siding back when it was popular because the high volumn low pressure air (wind) would sandblast the paint off in a matter of days. My leaf blower is rated over 100 mph. Gotta think that would work - just don't know how fast and good.