Simon
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| posted on 16/1/22 at 05:02 PM |
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Bead blaster
I've just bought a small (quiet), approx 11cfm/50 litre tank compressor by Hyundai and thinking about a blast cabinet.
Most seem to be 15+ cfm @ 80psi but surely I can run smaller hoses and slightly higher pressure? Toying with the idea of vapour blaster (will
fabricate bits I need).
Feasible or should I have got bigger (too noisy) compressor?
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indykid
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| posted on 16/1/22 at 05:47 PM |
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If you want to blast in 10 second bursts, you might be onto a winner, but my experience says you're about 100litres of air receiver and 5 CFM of
compressor short.
For odd jobs where you can put up with the inconvenience of waiting for the compressor to catch up, you'll probably get by but if you plan to do
a lot of work with it, I'd rethink your compressor. An auxillary receiver (47kg propane bottle) will help mask the spikes in demand and
stabilise supply pressure, but the compressor will still be running flat out.
Is the pump belt drive or direct drive? Belt drive is significantly easier to live with in terms of noise than direct drive.
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perksy
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| posted on 16/1/22 at 05:59 PM |
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I tried something similar once and came to the conclusion you need the biggest capacity tank and compressor you can afford and find room for
I rigged it up for soda blasting and it was ok for short bursts but as said above the motor was constantly running 
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theconrodkid
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| posted on 16/1/22 at 06:08 PM |
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i had a sandblaster at my buisness, the compo was a huge three cylinder affair and the tank the size of a submarine but the tank was emptied very
quickly, to do a propper job the pro,s use something like a tow along compo as used on road repairs.... i think you get the picture
who cares who wins
pass the pork pies
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gremlin1234
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| posted on 16/1/22 at 11:07 PM |
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in simple terms, that compressor will supply the cabinet at best just a couple of minutes, and then take another 5 to recharge. it can be done...
ps wear ear protectors.
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nick205
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| posted on 17/1/22 at 02:06 PM |
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When I built my MK Indy the bits I wanted blasted I wanted painted/powder coated as well. The blasting was generally to remove corosion and old
scaggy paint. I didn't have the kit to hand at home so used powder coaters who did the blast and coat service. The only exception I re,member
was the Sierra front uprights, which I cleaned up using wires brushes and wire brush cups in an angle grinder. Then masked certain bits and painted
with red oxide primera and black from rattle cans.
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ReMan
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| posted on 20/1/22 at 11:05 PM |
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quote:
Originally posted by Simon
I've just bought a small (quiet), approx 11cfm/50 litre tank compressor by Hyundai and thinking about a blast cabinet.
Most seem to be 15+ cfm @ 80psi but surely I can run smaller hoses and slightly higher pressure? Toying with the idea of vapour blaster (will
fabricate bits I need).
Feasible or should I have got bigger (too noisy) compressor?
I love the vapour aqau blaster concept.
So watching with interest.
www.plusnine.co.uk
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cliftyhanger
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| posted on 21/1/22 at 01:12 PM |
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quote:
Originally posted by ReMan
I love the vapour aqau blaster concept.
So watching with interest.
Have you seen the YouTube video where the bloke uses an old dishwasher to build a aqua blaster? Ideal with stainless interior. Needs a submersible
pump, big bucket and the only big expense us the blaster nozzle.
And I heard you get an additive for the water to stop flash rust.
Very tempting.....
I tried sandblasting years so, 3hp 50l compressor. It blasted an area the diameter of a pencil, slowly. This was after I built a ply box, lined it
with steel and bought a blast gun. Thought it would be ideal for doing wheels and stuff but no.
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mark chandler
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| posted on 25/1/22 at 11:06 PM |
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I have tried with single phase, 3hp compressor direct drive - very noisy, 3hp belt drive with big tank quieter, then looped them both together and
still ran out of puff after 30 seconds.
Picked up a very old diesel road compressor for £250 as a non-runner, the injectors on the Perkins 4203 were all jammed up, it had been standing for
years £79 replaced these and I now have unlimited high pressure air and it’s probably quieter than electric mess.
For blasting you need something that can really deliver air I am afraid.
I do know of someone that got a pair of big single phase motors and used these to power a rebuilt compair screw compressor for a blast cabinet, it
needs a 32 amp supply….
[Edited on 25/1/22 by mark chandler]
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