The working principle of gold concentrating table is to use the combined action of the specific gravity difference of sorted minerals, alternating movement of bed surface, and transverse oblique water flow and riffle (or notch groove), to allow loose layering of ores on the bed surface and fan-shaped zoning. Then different products can be produced.Concentrating table is applied in roughing, cleaning and scavenging for dressing coarse sand(2- 0.5mm), fine sand (0.5-0.074mm), pulp (-0.074).