Sealey SB993
hi has anyone any experence in useing this type of sandblast unit
Sealey SB993
Very messy 
yea i expect that what about results and consumpsion of grit
i presume the grit can be swept and reused
It's messy and the grit / sand consumption is quite high- but then sand isn't exactly expensive and if you do the blasting on your lawn
it'll do wonders for waterlogging 
quote:
Originally posted by BenB
It's messy and the grit / sand consumption is quite high- but then sand isn't exactly expensive and if you do the blasting on your lawn it'll do wonders for waterlogging
can normal beach sand be used for sand blasting?
you can use beach sand but its slow.
You can't use that in the garage, the dust in the air apart from being very dangerous to breath would be so thick you couldn't see a thing.
These things are meant be be used outside in an area you will not be building a car. Think massive sandstorm all over the garden.
look in the yellow pages for a powder coat or galvaniser as these people will have a basting room. Their equipment is so high powered it will take
them no time to clean a little chassis and wouldn't be that expencive.
[Edited on 27/11/07 by Mr Whippy]
sand should not be used ! it does real wonders for knackering the lungs, its called sillicosis. These days blasting media are less prone to breaking
up and creating aggressive dust. Total loss blasting is a messy business , if you are going to re-use the media put a tarpaulin up and gather the
media in this but do keep it dry and sieve it before you put it back in the blaster to get out the nasty lumpy bits that you have blown off your
workpiece.
Caber
24vseven try's some home sandblasting...
Rescued attachment sandblasting.jpg
I purchased one some time ago, made up a small cabinet which keeps the blast medium from flying about. It's not a bad bit of kit, but I have
found that my small compressor is really not up to the job, could do with more air flow. Cleaning steel items I have found the electrolosis method to
be better, though a bit slower
. Cheers Ray
quote:
Originally posted by Mr Whippy
24vseven try's some home sandblasting...
quote:
Originally posted by 24vseven
quote:
Originally posted by Mr Whippy
24vseven try's some home sandblasting...
lol
Make sure you get a good dust mask, a paper one is NOT enough. You will want one that seals to your face.
Breathing in any dust is not good for your lungs.
Caber is absolutely correct. Sillicosis was / is a miners disease got through breathing in dusty air.
I used a couple of the cheapo polytarps to form a tent in the garage, as that dust gets everywhere. More importanly into you machines, drills, lathes,
and your Engines it gets EVERYWHERE!!
Make sure you protect your self, and dont forget some decent eyeshields and gloves as well.
I've sandblasted my hand once... and its not that nice.
Please take care.
Also... You will probably need a serious compressor to run a sand blasting pot.
I have a 14CFM one, which is about as big as you can run on a single phase supply (Permanatly wired in, as it wont run on a 13Amp plugtop - blows 13
amp fuses on startup)
My compressor runs continuously when blasting. Its a Clarke Industrial one 14CFM, with a 3HP motor. its damn good but the blaster makes it grunt a
bit.
I welded up a 700mm cube for my blasting cabinet, and it works well.
I used Swimming pool filter sand in it as it was cheap. However it produces a LOT of dust in the cabinet, and I had to make some filters on the air
exhaust to prevent it pouring dust all over the garage.
I built the cabinet after I tried the Tent method!
Its a lot better than doing it in the open air. But then it depends on the size of the piece being blasted.
Better to use the proper blasting meduim as it works better than sand. OK its not as cheap, but much better to use.
thanks for the info its to sand blast uner the bonnet and underside of my mk1 escort so its a little large for a cabinet
the health and saftey aspects are allready covered as i have an air fed resperator ect
as regards air consumption its listed as 3.5cfm at 50 psi
I used one and they are shite I'm afraid.
I built myself a pressure pot blaster, its the only way to do the job, now having done it!
It was free apart from the hose and nozzle.
I cut open a 3ft C02 bottle at the bottom and welded in a 2.5" bsp pipe spigot, capped off with a 2.5" scre in bung.
This is the filler.
I then made a slightly angled tee piece, cut off the valve off the end of the bottle, then drilled and tapped the brass stump of the valve to take a
1/4" bsp fitting, with a 1/4 turn valve then the tee piece.
I then drilled the side of the base of the cylinder (now the top remember) and welded in a hose barb fitting for a 3/8" air hose.
One end of the tee piece is connected to a filtered regulated air supply, which is also tee'd into the welded on hose barb, thus pressurising the
cylinder and blasting air over the tee piece. With the bottle filled with sand etc, and the bottle valve opened, you get a hugely powerful blast of
sand and air from the end of the hose attached to the last leg of the tee.
You control the blast with an air valve before the air feeds on the bottle.
here's a commercial example:
blaster example linky
here's the one from acegrit that I got some ideas from:
acegrit blaster
[Edited on 28/11/07 by NS Dev]
quote:
Originally posted by blakep82
can normal beach sand be used for sand blasting?
quote:
Originally posted by rusty nuts
quote:
Originally posted by blakep82
can normal beach sand be used for sand blasting?
Yes, if you want silicosis or something similar. For the cost of getting it done profesionally is it worth it?
quote:
Originally posted by blakep82
i just wondered if it ws the same. I haven't got a sandblaster, nor do i need one
Had a nasty dream a few weeks ago, someone murdered someone by firing a sandblaster through someones ear, til sand came out the other side... was really quite grim
ok so is somthing like this any better
ebay item no 190178507683
[Edited on 29/11/07 by 24vseven]
that's better, bloody cheap too!!! If they were that cheap when I made mine I wouldn't have bothered!!
The ceramic nozzle is crap though, buy that machine, then buy a tungsten carbide nozzle from acegrit, job done.
ps re. the horrible murder, my blaster will go though a 2" thick paving slab like that!!!
[Edited on 30/11/07 by NS Dev]