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Understanding the Key Structure of a Crawler Crane Boom
Dec 15,2025
The boom is the core working component of a crawler crane, determining its lifting height, load capacity, and operational flexibility. As the main structural arm of the machine, the boom is closely connected to the other components of the crawler crane, forming the framework that supports heavy lifting operations.
Crawler crane booms are generally classified into two types: lattice booms and telescopic booms. Each design offers unique advantages depending on the lifting environment.
A lattice boom consists of welded truss sections connected by high-strength pins, forming a lightweight yet robust truss structure. This design offers excellent stability and high lifting capacity, making it ideal for long-term heavy lifting operations. It is also closely related to the crane's overall "component composition," where each boom segment contributes to the crane's mechanical strength.
In contrast, a telescopic boom uses nested rectangular or hexagonal segments that extend and retract via a hydraulic system. This structure allows for quick installation, height adjustment, and greater mobility, making it suitable for operations requiring frequent repositioning or rapid deployment. While telescopic booms offer greater flexibility, they are highly dependent on the integrity of the hydraulic system and must adhere to strict "safe operation requirements" to ensure structural reliability during lifting.
The condition of the boom also affects the long-term value and depreciation of the crane. Well-maintained boom cranes—free from structural fatigue or deformation—have higher market value. This aligns with typical "depreciation assessment criteria," where boom integrity is considered one of the most critical factors in calculating the price of a used crawler crane.
Both lattice booms and telescopic booms require regular inspection of pins, welds, connections, and alignment. Understanding the characteristics of each boom type helps users select the appropriate crane configuration, ensuring safer lifting and extending the equipment's lifespan. For technical support or replacement crawler crane parts, please feel free to contact us.
Keyword:
crane boom
lattice boom crane
crawler crane boom
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