Jig beneficiation belongs to trench sorting operation, which use water as mineral medium, sorting based on the proportion difference of selected minerals and gangue, jigs mostly are diaphragm, stroke and stroke frequency can be flexibly adjusted according to the proportion of selected minerals.

Jigger is fixed sieve formula, used for sorting metal ores, such as tungsten, gold-bearing sands, tin and other selected gravity beneficiation, both for the selection of fine materials and for coarse materials, the maximum feed size is 6-8mm, but in sorting placer individual cases, the maximum particle size is 12mm.