The present disclosure relates to a boom (1) for a flat-top crane (2). The boom (1) comprises an elongated frame arrangement (3) and a counterweight (4) and being_characterized in that the counterweight (4) is movably attached to the elongated frame arrangement (3) such that it can move along at least 50 % of the length of the elongated frame arrangement (3). The present disclosure also provides a flat-top crane (2) comprising a boom (1) according to boom a tower attachment arrangement (7) for attaching the boom (1) to a tower, the tower attachment arrangement (7) being arranged such that the boom (1) protrudes on both sides of the attachment arrangement. The flat-top crane (3) being characterized in that the counterweight (4) of the boom (1) is movably attached to the boom (1) such that it can pass the tower attachment arrangement (7) and be moved between the protrusions of the boom (1).


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    Title :

    BOOM WITH MOVEABLE COUNTER WEIGHT


    Additional title:

    AUSLEGER MIT BEWEGLICHEM GEGENGEWICHT
    FLÈCHE À CONTREPOIDS MOBILE


    Contributors:

    Publication date :

    2020-11-18


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    B66C Krane , CRANES



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