... than 30 metric tons per hour.Structural characteristics for Model S49A vibratory screen machine: 1.A ... alumina, grinding material, glass powder, refractory material.3.Food industry: sugar, salt, alkali, gourmet powder, starch, milk powder, bean milk, yeastsmust, ... oxide.6.Mechanical industry: casting sand, powder metallurgy, electromagnetic material and metal powder.7.Others: carbon black, light ...