The simple pursuit of screening accuracy will sacrifice the cost of production, and the pursuit of large production will make the accuracy decline. FYBS square shaker is a new design for the above problems, with high precision and high output of high efficiency screening equipment. The square shaker converts the vibration generator into vibration and swaying motion, which is transmitted to the screen body, so that the material is quickly dispersed in the front of the screen in front of the machine, so as to achieve the purpose of efficient screening.