earlier this year I bought a generic 10 gallon pressurised from here
https://www.martynsbargains.com/sb1...le-gun-grit-blast-pot-mattis-sandblaster.html
I am only an occasional user and got it to clean some parts that would be too big to do in my tiny cabinet blaster.
http://www.mig-welding.co.uk/forum/threads/benchtop-blasting-cabinet-modifications.71897/
the first thing I needed to do was to weld the axle to the two legs as the legs bent the first time I needed to take it up some steps in my garden.
I dont like blasting gun handle it came with as the abrasive media soon wore away the rubber sealing part, which then allowed the air compressed air to escape and the media grit to build up at the nozzle, so that next time you opened the valve you had to wait for the media build up to clear. also the spring loaded handle was tiring to use for long periods. luckily the ceramic nozzles are a perfect fit in 15mm plumbing fittings, so Im now using a 15mm lever valve (from toolstation) 1/2" bsp connector and 1/2" tail to 1/2" bsp fitting. this seems to be working better than the original setup, the only disadvantage is that it doesnt turn off automatically, you have to operate the lever. you can persuade 15mm copper pipe to fit the rubber hose so you only really need to buy a valve to try it.
the blast nozzles appear to be the same as these
https://www.machinemart.co.uk/p/replacement-nozzles-for-clarke-cpsb100-sandbla/
Im using recycled crushed glass media, and although its not supposed to be recycled I'm doing this because I don't have space to store a tonne of this and keep it dry and having to dispose of the used media. the glass media breaks down to dust fairly quickly which is why its not normally recycled (it can be used twice but no more).
so to catch the abrasive grit to recycle it, I use a pop up toilet tent, used like this with the door open. I've managed to blast a couple of holes in the back of it, which are now covered up with duct tape. you still get dust covering the area arround the work area, but the vast majority of media is kept in the pop up tent, and the media that isnt, I dont bother trying to recycle again as its mainly fine dust.
this is teh pop up tent I use and it is easy enough to put down too.
https://www.olproshop.com/products/olpro-wc-pop-up-toilet-tent
I did get another one first with poles, but it cant stand up on its own without guy ropes, but this one can. the fabric from the other one may end up being used to repair the holes in this one
I bought 250kgs of media as thats all the space I have for it, and got fine grade, which is 0.2mm to 0.5mm, and even with the fine grade I'm impressed with how it shifts even flaky rust. I may have been better off getting a medium fine grade which is a bit coarser, but the fine grade still works.
so here's now I "recycle" it. I've got a couple of lab sieves from ebay for 0.18mm and 0.6mm
http://www.ebay.co.uk/itm/352132316715
so I sweep the used media from the tent into a bucket (on the right) and then sift the dust out of that into the 0.18mm sieve. its best not to put too much abrasive in the sieve and its easiest to shake it over some mesh over a bucket. if the mesh in the sieve appears to to opaque turn it over and brush the dust out of the holes in the mesh
the sifted abrasive (with the dust removed) is then sifted in the 0.6mm sieve in the top of the blaster. this is to remove the larger debris ( so the valves and nozzle dont get blocked). when I've finished sifting the used media, I then top up the blaster with unused media for next time.
https://www.martynsbargains.com/sb1...le-gun-grit-blast-pot-mattis-sandblaster.html
I am only an occasional user and got it to clean some parts that would be too big to do in my tiny cabinet blaster.
http://www.mig-welding.co.uk/forum/threads/benchtop-blasting-cabinet-modifications.71897/
the first thing I needed to do was to weld the axle to the two legs as the legs bent the first time I needed to take it up some steps in my garden.
I dont like blasting gun handle it came with as the abrasive media soon wore away the rubber sealing part, which then allowed the air compressed air to escape and the media grit to build up at the nozzle, so that next time you opened the valve you had to wait for the media build up to clear. also the spring loaded handle was tiring to use for long periods. luckily the ceramic nozzles are a perfect fit in 15mm plumbing fittings, so Im now using a 15mm lever valve (from toolstation) 1/2" bsp connector and 1/2" tail to 1/2" bsp fitting. this seems to be working better than the original setup, the only disadvantage is that it doesnt turn off automatically, you have to operate the lever. you can persuade 15mm copper pipe to fit the rubber hose so you only really need to buy a valve to try it.
the blast nozzles appear to be the same as these
https://www.machinemart.co.uk/p/replacement-nozzles-for-clarke-cpsb100-sandbla/
Im using recycled crushed glass media, and although its not supposed to be recycled I'm doing this because I don't have space to store a tonne of this and keep it dry and having to dispose of the used media. the glass media breaks down to dust fairly quickly which is why its not normally recycled (it can be used twice but no more).
so to catch the abrasive grit to recycle it, I use a pop up toilet tent, used like this with the door open. I've managed to blast a couple of holes in the back of it, which are now covered up with duct tape. you still get dust covering the area arround the work area, but the vast majority of media is kept in the pop up tent, and the media that isnt, I dont bother trying to recycle again as its mainly fine dust.
this is teh pop up tent I use and it is easy enough to put down too.
https://www.olproshop.com/products/olpro-wc-pop-up-toilet-tent
I did get another one first with poles, but it cant stand up on its own without guy ropes, but this one can. the fabric from the other one may end up being used to repair the holes in this one
I bought 250kgs of media as thats all the space I have for it, and got fine grade, which is 0.2mm to 0.5mm, and even with the fine grade I'm impressed with how it shifts even flaky rust. I may have been better off getting a medium fine grade which is a bit coarser, but the fine grade still works.
so here's now I "recycle" it. I've got a couple of lab sieves from ebay for 0.18mm and 0.6mm
http://www.ebay.co.uk/itm/352132316715
so I sweep the used media from the tent into a bucket (on the right) and then sift the dust out of that into the 0.18mm sieve. its best not to put too much abrasive in the sieve and its easiest to shake it over some mesh over a bucket. if the mesh in the sieve appears to to opaque turn it over and brush the dust out of the holes in the mesh
the sifted abrasive (with the dust removed) is then sifted in the 0.6mm sieve in the top of the blaster. this is to remove the larger debris ( so the valves and nozzle dont get blocked). when I've finished sifting the used media, I then top up the blaster with unused media for next time.
