The hopper is 13 x 13 x 6 so you can feed it with a shovel. 5 diameter x 16 inch length trommel barrel with classifying screen. Top box is 21 x 7 x 3 with 1/4 classifying plate. Unique spray bar that runs inside of the barrel to spray the material while it tumbles as well as supplies water to the hopper. Multi angle adjustment. Gold trommel scrubber is widely used for cleaning various kinds of difficult-to-wash bulk ore, stone, sand gravel, it is divided into cylinder type and plus screening strip type, the latter can process fine and coarse feed simultaneously, remove or classify the feeding material according to the particle size, 40mm and -40mm. The feed which size -40mm then can be divided into The Mini Gold Trommel Wash Plant is an easily portable Gold Wash Plant that can be towed by an ATV, and can be broken down to its major components in under 1 minute. Complete with 2-stage 60 x 10 Sluice box this Trommel features excellent gold recovery.