Utility digger derricks are usually classified by their capacity rating with the booms fully retracted and fully elevated. This is not a practical working position. A more meaningful comparison of useful lifting capacities can be made when the rating classification is the load which can be lifted by the digger derrick lift cylinder at a ten foot load radius. Lifting capacities at lower boom angles are also important for digger derrick applications.


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    Title :

    Standardization of Digger Derrick Capacity Ratings


    Additional title:

    Sae Technical Papers


    Contributors:

    Conference:

    SAE International Congress and Exposition ; 1983



    Publication date :

    1983-02-01




    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




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