Dz series vibration sieve basic principle is to use the motor shaft mounted hammer (unbalanced weight), the rotary motion of the motor into a horizontal, vertical, inclined three million sports, then this movement is transmitted to the screen surface, so that the screen s pansion involute sports, so the series is called rotary shaker shaker. Track vibration sieve with material long run, the screen surface efficiency advantages, the regulation under the hammer at both ends of the phase angle can change the trajectory of the material in the screen surface can be the material for fine sieve, sieve probability grading.