To the present invention is to solve the problem that occurs when the cut to form a carousel and the flange of bending, welding and hoist drums by processing them, particularly iron relates to a tower crane hoist drums for the right size, the tumbler and by replacing the flanges with each casting integrally formed by casting process, the present invention relates to improving the durability and reliability and, further tower crane hoist drum, which can reduce the cost, time and effort for production.
Configuration means for constituting the present inventors tower crane hoist drums for the tower in the crane hoist drum, being of a hollow cylindrical shape and coupled to a traditional, one side of the tumbler times to be formed into the wire guide grooves to the outer peripheral surface continuously doedoe configuration including the other side flange assembly coupled to the other side of the one side flange, the carousel is assembled, the tumbler, one side of the flange and the other flange may be a steel casting that is integrally formed by a casting process, respectively.