According to the furnace selected by the operator on the control panel, the crane clasps the basket and puts it down inside the said furnace. After the treatment, the operator selects the unloading cycle by pressing the button linked to the furnace that contains the basket. The crane automatically performs all manoeuvres needed to remove the lid from the furnace, pull out the basket, put it down, reposition the lid and move up to the parking area of load hoppers.