My Vacuum for Large sandblast cabinet

[dirtybiker]

Hello everyone.

I built a large 4*8 ft. sandblaster over the winter. I had the idea of using a blower to clear out the air in the sandblaster instead of a Vacuum well I found out that it was too much pressure and sand was leaking everywhere. I did not want to go with the vacuum because of cost and noise. I did not want to use a cheap shop vac because of the damage to the motor.

Well I decided to go with a vacuum and I found one that was only 20 bucks and with a few modifications and add ons it will work. I have a 55 gallon drum that I am going to use for a water dust trap. As far as the noise is concerned I am going to run 3inch PVC and 3inch flex hose to the other end of my garage in a different room so I will not hear it. If I find that it is too strong I will add a baffle.

I also plan on running a 24v motor controller on it so I can turn it on and off at the blaster without having to run conduit. I can run low voltage wire without conduit to the cabinet.

I might even have a few outlets for a central shop vac also. The great thing about vacuum is you don't have to worry about any loss with long distance.

What are your opinions ideas suggestions?

The picture is one that I found online but mine is the same thing.

 

[Mike Miller]

I've been thinking of using one of HF's dust collectors set up out side my shop the same way. the twenty dollar used shop vac I put on it twenty years ago is getting kind of noisy.

 

[dirtybiker]

I had thought about using one of those also from harbor freight. That was the idea I had before I found this vac. The blower I was using is a squirrel cage type and would have gotten ruined if I used it for a vacuum. My other idea was to setup a venturi with my blower but I decided I would not have been happy with the results.

 

[Regnar]

The great thing about vacuum is you don't have to worry about any loss with long distance.

With longer pipes you will create friction inside and will have loss of suction at the inlet.