中联重科ZLJ5151JQZ12H起重机的优点有：1. 强大的起重能力：ZLJ5151JQZ12H起重机拥有高(gāo)达12吨的起重能力，能够应对各种较大的起重任务。2. 高(gāo)度(dù)和(hé)幅度(dù)的可(kě)调性：起重机可(kě)进行360度(dù)无级回转，同时具备最(zuì)大伸臂长度(dù)和(hé)幅度(dù)，能够灵活适应不同的工作(zuò)环境和(hé)要求。3. 稳定性和(hé)安全性：起重机采用先(xiān)进的起重控制系统，具备稳定的工作(zuò)性能和(hé)精准的动作(zuò)控制，能够保证作(zuò)业过程的安全和(hé)顺利进行。4. 高(gāo)效的工作(zuò)效率：起重机配备有强大的动力系统和(hé)灵活的操作(zuò)控制系统，能够高(gāo)效地完成各种起重作(zuò)业，提升工作(zuò)效率和(hé)生产能力。5. 便捷的维护和(hé)保养：起重机采用模块化设计，各个部件可(kě)以快速拆装和(hé)更换，便于维护和(hé)保养，减少停工时间和(hé)维修成本。6. 节能环保：起重机采用先(xiān)进的液压系统和(hé)动力装置，具备较高(gāo)的能源利用效率和(hé)低排放特性，符合节能环保的要求。总的来说，中联重科ZLJ5151JQZ12H起重机具有高(gāo)性能、高(gāo)效率、高(gāo)安全性等优点，适用于各种起重作(zuò)业需求。

The advantages of Zoomlion ZLJ5151JQZ12H crane include: 1. powerful lifting capacity: ZLJ5151JQZ12H crane has a lifting capacity of up to 12 tons, which is able to cope with a variety of larger lifting tasks. 2. height and amplitude adjustability: the crane can carry out 360-degree stepless slewing, and at the same time has the maximum reach and amplitude, which is able to flexibly adapt to the different working Stability and safety: the crane adopts advanced lifting control system, with stable working performance and precise movement control, which can ensure the safety and smooth operation of the work process. 4. Efficient working efficiency: the crane is equipped with powerful power system and flexible operation control system, which can efficiently complete all kinds of lifting operations and improve the working efficiency and production capacity. 5. Convenient maintenance and repair: the crane adopts modular system, which is easy to maintain and repair. 6. Maintenance and repair: the crane adopts modular design, each component can be quickly disassembled and replaced, easy to maintain and repair, reduce downtime and maintenance costs. 6. energy saving and environmental protection: the crane adopts advanced hydraulic system and power unit, with high energy efficiency and low emissions, in line with the requirements of energy saving and environmental protection. Overall, Zoomlion ZLJ5151JQZ12H crane has the advantages of high performance, high efficiency and high safety, which is suitable for a variety of lifting operation needs.