What material is primarily used in the construction of a lattice-boom crane?

A lattice-boom crane is primarily constructed from thin steel, which provides the necessary strength and structural integrity required for heavy lifting operations while maintaining a lightweight design. The use of thin steel allows for the boom to have a high strength-to-weight ratio, which enhances the crane's ability to reach extended heights and carry substantial loads without compromising stability.

Thin steel is also preferred because it offers good resistance to bending and deformation under load, ensuring that the crane can operate safely and efficiently in various conditions. Moreover, steel's durability contributes to the longevity and reliability of the crane, making it suitable for diverse applications in construction and industrial settings.