New business sand machine uses widely, its performance has reached international leading level, is currently most effective, practical reliable of gravel machine, special suitable for making abrasive, refractory, cement, and quartz sand, and steel sand, and slag powder, and copper ore, and iron ore, and gold sand, and concrete aggregate, and asphalt aggregate, variety hard, and crisp material of finely and in the broken, is a efficient, energy-saving of gravel business sand equipment, than traditional finely machine energy-saving 50%, is currently world Shang advanced of finely machine equipment.