Trommel maker causing quite a stir | TheUnion
A trommel, also known as a cylindrical classifier, is essentially a large pipe used to wash rocks or gold by eliminating dirt and clay to make a clean product used to make concrete or washed sands. This trommel made by Michael Wedel is 10 ½ feet in diameter, 65 feet long and weighs 145,000 pounds and with all associated components 210,000 ...