Sandblaster!!!

Brian Rupnow · Sep 29, 2024

I am very happy with my sandblaster. One thing that I may change sometime in the future is the angled cone in the bottom. On this sandblaster, the cone is very shallow, meaning that the sand settles on the sides of the cone but doesn't slide down to the bottom of the cone very well. I may make up a cone with steeper slopes to the sides at some point in the future.----Brian

BaronJ · Oct 3, 2024

Brian Rupnow said:
I am very happy with my sandblaster. One thing that I may change sometime in the future is the angled cone in the bottom. On this sandblaster, the cone is very shallow, meaning that the sand settles on the sides of the cone but doesn't slide down to the bottom of the cone very well. I may make up a cone with steeper slopes to the sides at some point in the future.----Brian

Just make up a vibrator ! A solenoid with a loose core attached to the side of the cone. Or a motor with an out of balance rotor, a bit like an electric shaver one.

Mike Ginn · Oct 4, 2024

I just fill the cabinet with 10 to 15Kg of media and no issues. I do however have an air bleed into the mixing chamber in the base to ensure a good air flow.

Randoo · Oct 4, 2024

Mike Ginn said:
I just fill the cabinet with 10 to 15Kg of media and no issues. I do however have an air bleed into the mixing chamber in the base to ensure a good air flow.

What does the air bleed look like?

Mike Ginn · Oct 4, 2024

Hi Randoo
Its called a metering valve - I call it an air bleed valve. Basically It introduces air into the media to increase the flow. The video shows the working arrangement. I used iron pipe fittings to modify my useless blast cabinet. The video shows a short stub valve for the air inlet. I use a flex pipe to a valve mounted on the side of the cabinet so that it is easy to adjust. (my cabinet sits on the floor and has little ground clearance). Without the air bleed I found that after a few minutes the media would not flow freely. It works very well!

Hope that helps
Mike

Randoo · Oct 4, 2024

Mike Ginn said:
Hi Randoo
Its called a metering valve - I call it an air bleed valve. Basically It introduces air into the media to increase the flow. The video shows the working arrangement. I used iron pipe fittings to modify my useless blast cabinet. The video shows a short stub valve for the air inlet. I use a flex pipe to a valve mounted on the side of the cabinet so that it is easy to adjust. (my cabinet sits on the floor and has little ground clearance). Without the air bleed I found that after a few minutes the media would not flow freely. It works very well!

Hope that helps
Mike

Thanks for the reply. I have mine set up as you do with the air valve mounted within easy reach. I thought you might be injecting air to the metering valve or something.