Blast Cabinet - Dust Extractor?

[robi]

I have a large blast cabinet which is to be used for blasting wheels. I need to buy and attach a dust extractor to it? How powerfull does the dust extractor need to be? There are loads for sale on ebay, just dont know which one to buy.

 

[rtbcomp]

I use a Clarke woodchip extractor, works fine.

You need a good airflow through the cabinet, the air coming out of the nozzle isn't enough, you have to provide an additional air inlet.

To increase the airflow from an extractor, add more filter bags to the output. They should just inflate slightly, too much and the fabric stretches and allows dust through.

This is my setup:

http://www.mig-welding.co.uk/forum/album.php?albumid=1026

 

[brightspark]

as said above a decent 4inch wood extracta .as for colecting the dust that depends on where your sited . i dont bother as i vent mine on me back field and there isnt that much muck anyhow if your in the town or a factory u probably need to filter it