It is an important factor of sand filling influencing the quality of castings in EPC

and the limiting filling height of vertical tube molding filling can be used to express the capacity of mold filling by un-bonded sand at vibration molding as a result of sensitive to various technological parameters. Dynamic analysis of filling in vertical tube was investigated

and mathematical model of limiting filling height in vertical tube was established. Furthermore

calculated results were analyzed comparatively with experimental ones from an aluminum plant to understand effects of embedding depth and tube aperture of vertical tube on limiting filling height. The results reveal that embedded depth has greatly affected

while tube aperture has slightly affected on limiting filling height. The calculated results are well in agreement with experimental ones.