The Dahan QTZ63 (DH5013A) is a robust 5–6 t capacity hammerhead (top‑kit) tower crane featuring a 50 m jib, modular mast sections (1.5–1.6 m square), and up to 140 m anchoring height—ideal for mid-rise urban construction and civil projects. With a stable tip load of 1.3 t and hoisting speeds ranging from 10–80 m/min, it ensures smooth operations supported by variable-frequency drives and overload safety mechanisms. Key features include robot-welded Q345B steel components, PLC-based diagnostics, torque and height limiters, and CE/ISO certification for global safety compliance. The top-kit design allows quick erection and compact layout, enhancing site coordination efficiency. Supported by Dahan’s global service network across 50+ countries, this crane offers reliable performance for contractors focused on productivity and safety