Gold hopper classifier This is what you need to speed up sorting the big stones from the small stones , it will classify a shove full of shingle down to 6 mm in minutes, either take home concentrate and process later or run threw you sluice. Similar product ex USA $275 The hopper is filled with pay dirt then submerged in a creek or tub the water floods in threw slots in side of base this fluidises the dirt and washes all the smalls threw a grill, you then tip off the big stuff one way and the concentrate the other way, there is a piece of sluice matting which will catch any gold, you just keep repeating this process The unit is made from 3 mm alloy tread plate. This is a heavy duty construction made to last New Zealand made Gold sluice gold pans Buy now and we will freight free New Zealand wide not rd