Blasting pot

[Burdekin]

Would like to get a blasting pot for mainly car panels and parts etc. I have linked to 14.5cfm compressors together, what would be a good, reasonably priced set-up?

 

[brightspark]

Would like to get a blasting pot for mainly car panels and parts etc. I have linked to 14.5cfm compressors together, what would be a good, reasonably priced set-up?

a cheapo pot of ebay and fit a 3mm carbide nozzle on the end of blast hose or make your own pot it will run nicely @ 90psi with 28cfm

 

[W.olly]

want one myself and thought on making my own but cheap enough at £90 ish new or around half that second hand.i missed out on two last week for less than £60.

 

[henry Kadzielski]

Good morning gents.
We are talking about suction pots I am assuming by the numbers above. As long as you realise that a suction pot will never compete against a pressure pot setup. A suction pot setup dose not generate the same velocity in the abrasive as dose a pressure pot, so you use more grit for the job at hand. If you have the time, it will work, a 3mm nozzel at 100psi will require more than 28cfm. Just a note in blasting the measure rate is determined at 100psi. For every 1psi above 100 you gain 1.5% in performance, with every 1psi below 100 you loose 1.5% in performance. Once you have used pressure blasting equipment and was able to increase the operational pressure, you see for yourself the difference in how it goes, much faster.
In blasting panels you can never go 'too fast'. It seems to take forever to complete a job

 

[Burdekin]

I was talking about a pressure pot, think the other guys as well.

 

[W.olly]

Yep a pressure pot like these.

http://www.ebay.co.uk/itm/Sandblast...690180?hash=item51c09a52c4:g:mk8AAOSw54xUVvWK

 

[rtbcomp]

They're good value for money, I used mine with a couple of 3hp compressors and they will operate larger than 3mm OK. It depends what you're blasting, I did scooter frames and other fairly intricate parts so you don't need a lot of air or you have difficulty holding the workpiece steady while you blast it.

I used the larger nozzles with coarse grit and switched to smaller nozzles as the grit wore down. No need to buy larger nozzles, even the carbide ones wear eventually so a 3mm becomes a 3.5mm and then a 4mm.

 

[W.olly]

They're good value for money, I used mine with a couple of 3hp compressors and they will operate larger than 3mm OK. It depends what you're blasting, I did scooter frames and other fairly intricate parts so you don't need a lot of air or you have difficulty holding the workpiece steady while you blast it.

I used the larger nozzles with coarse grit and switched to smaller nozzles as the grit wore down. No need to buy larger nozzles, even the carbide ones wear eventually so a 3mm becomes a 3.5mm and then a 4mm.

Well thats good to know, i am always wary of cheap gear i dont know.

I will be Soda blasting my GRP boat along the same lines as you with two 3hp compressors, well once i find another and work out best way to pipe it all up.

I got a bargain with the comprsssor i gto a few week back at £70 3hp belt drive and now i expect to find another lol. some chance.

 

[Burdekin]

Best to go for a 20gallon V a 10gallon? Not much difference in price, assume the larger can just go longer with more grit but apparently from that no performance difference?

 

[armalites]

I've got a 20 gallon that I don't use and has only been used a few times but the shipping would be tricky.

 

[W.olly]

Best to go for a 20gallon V a 10gallon? Not much difference in price, assume the larger can just go longer with more grit but apparently from that no performance difference?

For me it will depend on what i can get second hand as the more i spend the more the boat funds drops never get it finished lo.

 

[W.olly]

I've got a 20 gallon that I don't use and has only been used a few times but the shipping would be tricky.

How much and where are you postcode wise.

 

[Burdekin]

http://www.ebay.co.uk/itm/Sandblast...0033&rk=3&rkt=8&mehot=ag&sd=322446683823#rwid

Aberdeen

 

[armalites]

How much and where are you postcode wise.

I'm just north of Hereford

 

[rtbcomp]

The problem with the 20 gall one is that there's a lot of weight on the leg and on mine that has distorted the bottom of the pot where it's welded on. If you're using DIY compressors the smaller pot gives them a chance to have rest as you have to refill it more often.

I used a 20 gall pot in my blast room and a 10 gall with my cabinet.

 

[Burdekin]

I've got a 20 gallon that I don't use and has only been used a few times but the shipping would be tricky.

Thanks. How much are you wanting? Looks about £13 for postage to Aberdeen.

 

[8ob]

Slight derail but has anyone here used one of those sand syphon`s that go on the end of a pressure washer? A mates got one and I used it to clean up an axle, not a bad bit of kit if you can keep the sand dry.

Bob

 

[julianf]

...which also makes me want to ask -

What are the pressure pots like with wet sand?

I got a part blasted once, as a cash job - chap had a road compressor, and just emptied a bag of cheap wet sharp sand into the pot (total loss setup) and it worked. I don't know if this was due to the massive volume of air, or somthing with his pot... Or neither?

 

[brightspark]

...which also makes me want to ask -

What are the pressure pots like with wet sand?

I got a part blasted once, as a cash job - chap had a road compressor, and just emptied a bag of cheap wet sharp sand into the pot (total loss setup) and it worked. I don't know if this was due to the massive volume of air, or somthing with his pot... Or neither?

there totally useless with even damp sand .if it did work must have been a large pot with a big blast jet and sand like slurry or it didn't happen

 

[rtbcomp]

Sounds odd - media must be dry or else it won't flow from the pot into the mixer.

I wouldn't recommend sharp sand either - it's not uniform enough and contains some quite large bits