Vsi sand making machine is a newly researched equipment, with international advanced level. Technology and modern processing equipment make it a leading role in this industry. Vsi sand making machine is widely used for artificial sand, in metal and non-metal ores, cement, refractory material, bauxite, silicon carbide, glass material, 4. Over-vibration device is equipped. There will be alarm when vibration surpasses a stipulated figure. It will stop the machine, in order to protect it. s it possible that center feeding and ring feeding comes together, in order to meet requirement of different stones. In Sandard packaging