What distinguishes a lattice boom crane from a telescopic crane?

A lattice boom crane is characterized by its use of a fixed truss boom design, which consists of a series of interconnected metal rods that form a lattice structure. This construction not only provides significant strength and rigidity for lifting heavy loads but also allows for a lighter overall weight compared to solid booms. The fixed truss boom means that it does not extend or retract like the boom of a telescopic crane, making the lattice boom crane specifically suited for applications where stability and reach are required without the need for changing the boom length.

The other options touch on various features of cranes; however, they do not specifically define the unique aspect of lattice boom cranes. While rotating booms can be found on both types of cranes, with telescopic cranes often having this feature as well, it does not set them apart. Additionally, telescopic cranes may be designed to lift heavier loads and are more space-efficient, but these characteristics do not pertain to the distinguishing feature of the lattice design itself. Thus, the defining characteristic of a lattice boom crane is its use of a fixed truss boom, which provides both stability and capability for particular lifting tasks.