... .reasonabl design 5.ISO9001:2008 It is applicable for the powder and granular materials, such as coal, concrete, sand and stones ... , clay, slag and mineral. It has the advantages of high capacity, lower in energy consumption, reliable operation, good air sealing ... width(mm)Speed(m/s)D1603002001.0D2504003001.25D3505004001.25D4506405001.25 High efficiency bucker elevator