Spiral Wheel Gold Panning Machines: Automated Gold Recovery
The wheel can turn at up to 105 revolutions per minute, providing a way to quickly wash away larger pieces of black sand. It is touted to produce 50 times as much gold as hand panning alone. There seems to be some debate over what the best RPM is for gold recovery. It can wash 70 pounds of concentrate an hour.
قرأ أكثر