The extension arm is a front-end working device of the excavator specially designed and manufactured to expand the working range of the excavator according to the requirements of the working conditions.

        According to its operation method, it is divided into: building demolition extension arm, deep pit extension arm, piling extension arm, etc.; according to the number of segments, it is divided into: two-stage extension arm, three-stage extension arm, and four-stage extension arm; according to its performance For: fixed extension arm, sliding extension arm, telescopic extension arm, etc.

        Scope of application of excavator extension arm:

        1. Earthwork foundation works.

        2. Deep pit excavation works.

        3. Municipal engineering, river cleaning.

        4. Special purposes, such as building demolition and crushing.