... Easy Maintenance Structural characteristics for Model S49B rotary vibration machine: 1.The general motor is used as a driving ... silica sand, alumina, grinding material, glass powder, refractory material.3.Food industry: sugar, salt, alkali, gourmet powder, starch, milk ... powder, bean milk, yeastsmust, pollen, food additive.4.Paper-making industry: whitish soil slush, black and ...