Attachment that facilitates the replacement of conveyor belt belts. The attachment has two fixing feet to be used in the unwinding/winding phase and a hydraulically removable column that allows you to hold or release the drum in the middle of the motorized washers. It is possible to move a drum with a diameter of 4 m and a length of 2.25 m, a carrying capacity of up to 25 tons, on which a tape is wrapped. For HTH series, this attachment is only suitable for models HTH 35.12 and HTH 50.14.