... clamshell bucket :The clamshell can be opened and closed directly by the hydraulic cylinder1. Made ... and mud,sand,coal,gravel loading .Especially for digging and loading of channel or one side of limited space .Loading and unloading ... vessels,trains,cars . Applicable models: CATERPILLAR, KOMATSU, KOBELCO, HITACHI, KATO, SUMITOMO, etc. PC60, PC100, PC120, PC200, PC300, and ...