HVI Impact sand making machine

The impact sand-making machine operates through a combined working principle involving both "stone-on-stone" and "stone-on-iron" crushing modes. As material falls into the feed hopper, it enters the high-speed rotating impeller via the central feed port. Inside the impeller, the material is rapidly accelerated and collides with a separate stream of material that is free-falling after rebounding. Together, these materials impact against either a material liner (in the stone-on-stone mode) or impact blocks (in the stone-on-iron mode). They then rebound diagonally upward toward the top of the vortex chamber, where their direction of motion is altered, causing them to deflect downward. Here, they collide with material being ejected from the impeller channels, forming a continuous "curtain" of material. Consequently, each individual particle within the vortex crushing chamber undergoes multiple cycles—ranging from two to several times—of impact, friction, and grinding, before being discharged through the outlet at the bottom.