JT series 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%.Shicheng Pioneers Mining Machinery Manufacturer Factory has strong technical advantage and production power on rougher jig machines production, and wins customers¡¡¥ support and trust deeply.