Crane QY55K5C_2 frame adopts a reinforced anti-twist box structure and is made of high-strength steel. At the beginning of the design of the whole machine, it has undergone full life cycle simulation and systematic testing and evaluation to ensure the reliability of its body system. It has undergone raw material testing and manufacturing during the manufacturing process. Three-layer quality control of process inspection and online inspection of the whole machine.

QY55K5C_2 uses low-mounted two-stage outriggers, with a large outrigger span of 6.3m in length and 7.9m in width, low outrigger height, and short vertical cylinder stroke; it has a 15t combined counterweight, which comprehensively guarantees the stability and stability of the crane's long and heavy lifting Work safety.

QY55K5C_2 adopts the most stable U-shaped structure main boom, high lap ratio single-plate boom head, and compact boom tail structure, which fully guarantees the high load-bearing capacity of the main boom without bending or bending, and hoisting is safe and accident-free. Using dual-pump automatic splitting and merging control technology, it realizes the combination of any working conditions of lifting, luffing and rotation, and the coordination of compound actions is good.