1. Increase the rotor speed of the vertical shaft impact sand making machine, increase the linear speed of the aggregate in the crushing cavity (this system is 65m/s), increase the sand formation rate and the stone powder content of the crushed sand, and at the same time reduce the fineness of the sand. number. 2. Adjusting the feed gradation of the vertical shaft impact crusher can greatly improve the sand making effect. 3. The <5mm aggregate produced by the production line system after coarse crushing and medium and fine crushing has a high stone chip content. The process prevents this part of the aggregate from producing finished materials, and allows all the <5mm aggregates after medium and fine crushing to enter the vertical shaft impact crusher for shaping. To control the quality of finished sand. https://www.lzzgmachine.com/service-parts/product-knowledge/how-to-adjust-the-fineness-of-basalt-sand-making.html