The machine adopts the principle of suspension vibration. Through the vibration of the vibration motor, under the action of the excitation force, the sand block and the sand block, the sand block and the grid basket collide and rub with each other so that the sand block is broken, and the impurities are removed by screening. The machine has the functions of crushing, screening and primary regeneration. There are two kinds of S56 series and S52 series for users to choose.