Cantilever crane and concrete equipment

The utility model discloses a cantilever crane and concrete equipment and relates to the technical field of engineering machines. The cantilever crane and the concrete equipment are used for resolving the problem in the prior art that a cantilever crane box-shaped structure is difficult to form. The cantilever crane comprises an aluminum alloy box-shaped structure, the aluminum alloy box-shaped structure comprises a first concave part and a second concave part, the first concave part and the second concave part are respectively provided with an open end, and the open end of the first concave part and the open end of the second concave part are connected in a butting mode, welded and fixed. According to the technical scheme, the first concave part and the second concave part are spliced into the aluminum alloy box-shaped structure, the aluminum alloy box-shaped structure is easy to form, and therefore manufacturing difficulty is lowered. In addition, the aluminum alloy box-shaped structure is made of aluminum