Our Saw-tooth Wave Jig is a new type of energy saving and high efficient gravity separation equipment and developed based on the traditional Sine Wave Jig. The difference between Saw-tooth Wave Jig and Sine Wave Jig is that the pulsation curve for jigging is saw-tooth wave shape, with speedy upward flow and slow downward flow. Descriptions Our Saw-tooth Wave Jig is a new type of energy saving and high efficient gravity separation equipment and developed based on the traditional Sine Wave Jig. The difference between Saw-tooth Wave Jig and Sine Wave Jig is that the pulsation curve for jigging is saw-tooth wave shape, with speedy upward flow and slow downward flow. Bed layer is elevated integrally and slowly dropped with a long effective loose time, allowing significant increase of handling capacity for unit screen surface, decrease of lower limit of grain size recovery and large save of make-up water for under size fraction. In practice, contrast of Saw-tooth Wave Jig and Sine Wave Jig shows up raises of recovery of Saw-tooth Wave Jig: Sn:3.01%, W:5.5%, Pb:1.63%, Zn:2.04%. Advantages and Characteristics 1 High capacity 2 High concentration ratio and high recovery 3 Easy to install, operate and maintain 4 The pulsation curve is saw-tooth wave shape facilitate heavy mineral to settling 5 Saving water 30-40% than ordinary jig 6 The pulsation speed very easy adjusted by regulator 7 Can achieve a good result in processing such as placer gold, tungsten,iron, tin, hematite, copper, tantalum-niobium, titanium, manganese, barite, zirconium, chrome and gemstone etc