Jigger is fixed screen type, suitable for separating metal ores, such as tungsten and gold-bearing alluvial ores, selected tin ore, etc. It can be used for separating fine-grained materials as well as coarse materials, with a feed size of 6-8mm, but in the individual case of separating alluvial ores, the size is 12mm.

The working principle of jigger: Jigger belongs to the deep trough type in the separation equipment. The jigger has a jigging chamber. Drumming water movement as a mechanism and product discharge mechanism. Jigging chamber sieve plate made of perforated steel, woven iron screen or grate, the water through the sieve plate into the jigging chamber should make the bed rise to a small height and slightly loose state, the density of particles due to the local pressure and settling speed into the bottom layer, the density of particles is small particles are transferred to the upper layer. When the water flow down, the density of fine particles can also be gradually tightened through the bed gap into the lower layer, supplemented by the density of the stratification of the water movement of the drum in the early years of the movement of the piston, the piston room is located in the side of the jigging chamber, the lower part of the connecting, by the eccentric linkage mechanism to drive the piston up and down movement.