Mountain Goat Reverse Helix Trommel for gold mining prospecting teknetics Rainproof protection design

Rainproof protection design

5 softbound)

Headphone Storage Case

ORANGE: MESH 100 - Hole Size: 0

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Mountain Goat Reverse Helix Trommel for gold mining prospecting teknetics Rainproof protection designThe Mountain Goat Trommel is a reverse helix system built on the same principle as the huge mining trommels used by large mining companies all over the world, but this is light and portable. The reverse helix system came from the Archimedes Screw Pump invented over 2,000 years ago by the mathematician Archimedes. The Mountain Goat is efficient because the spiral riffles inside of the tube turn and bring the heavy materials up to the high end of the