Making a GOLD Concentrator mechine | blue bowl 

I made this gold concentrator mechine to prepare grinded E-waste powder, to get clean powder for further chemical processing.
so this can save much time for this purpose, i call this mechine Auto Panning mechine because this skip washing and panning process for me. you use my design to have it's benefits.
📣you can also my video of making DC MOTOR SPEED CONTROLLER that i used in this video by clicking on link below 👇
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