柳工QY70起重(zhòng)机(jī)的优点有：1. 起重(zhòng)能(néng)力强：柳工QY70起重(zhòng)机(jī)的最大额定起重(zhòng)量达到70吨，适用于(yú)大型项目的吊装作业，能(néng)够满足较大规模的起重(zhòng)需求。2. 工作范围广：该起重(zhòng)机(jī)的工作范围广，横置臂长度可达52米，最大起重(zhòng)力矩可达2450 kN·m，能(néng)够满足不同场地和工程的起重(zhòng)要求。3. 操作灵活方(fāng)便：柳工QY70起重(zhòng)机(jī)采用全液压操作系统，操作简单灵活，具有重(zhòng)复作业、流畅移动等功能(néng)，提高了工作效率。4. 稳定性好：起重(zhòng)机(jī)具有自动平衡系统，能(néng)够保持稳定的工作状态，减少了起重(zhòng)过程中的晃动和风险，提高了施工安全性。5. 外(wài)观美观：柳工QY70起重(zhòng)机(jī)外(wài)观设计精美，造型大气，线条流畅，符合现代工程机(jī)械的外(wài)观审美标准。6. 维护方(fāng)便：该起重(zhòng)机(jī)的维护保养较为简单方(fāng)便，主要部件易于(yú)更换和维修，减少了停工时间和维修成本。7. 环保节能(néng)：柳工QY70起重(zhòng)机(jī)采用先进的动力系统和液压系统，具有低噪音、低排放、高效节能(néng)的特点，对环境影响较小。总体来说，柳工QY70起重(zhòng)机(jī)具有承载能(néng)力强、工作范围广、操作方(fāng)便、稳定性好、维护方(fāng)便等优点，适用于(yú)各种大型工程的起重(zhòng)作业。

The advantages of LiuGong QY70 crane are: 1. strong lifting capacity: the maximum rated lifting capacity of LiuGong QY70 crane reaches 70 tons, which is suitable for lifting operations of large-scale projects, and can meet the lifting needs of a larger scale. 2. wide working range: the crane has a wide range of working range, with a traversing jib length of up to 52 meters, and the maximum lifting torque of up to 2,450 kN-m, which can meet the lifting requirements of different venues and engineering Flexible and convenient operation: LiuGong QY70 crane adopts full hydraulic operating system, which is simple and flexible to operate, and has the functions of repeated operation and smooth movement, which improves the working efficiency.4. Good stability: the crane has an automatic balancing system, which maintains a stable working condition, reduces the shaking and risk during the lifting process, and improves the safety of the construction.5. Beautiful appearance: the appearance design of LiuGong QY70 crane is exquisite, and it can meet the requirements of different sites and projects. 6. QY70 crane appearance is beautifully designed, atmospheric modeling, smooth lines, in line with the aesthetic standards of the appearance of modern construction machinery.6. Convenient Maintenance: the maintenance of the crane is relatively simple and convenient, and the main components are easy to replace and repair, reducing downtime and maintenance costs.7. Environmental Protection and Energy Saving: LiuGong QY70 crane adopts an advanced power system and hydraulic system, which has a low noise, low emissions, high efficiency and energy saving, which has less impact on the environment. Overall, LiuGong QY70 crane has the advantages of strong carrying capacity, wide working range, convenient operation, good stability, easy maintenance and so on, which is suitable for lifting operations of various large-scale projects.