徐工(gōng)QY20K5起重(zhòng)机具有以下优点：1. 高(gāo)承载能力：徐工(gōng)QY20K5起重(zhòng)机具有20吨的起重(zhòng)能力，能够应对大部分起重(zhòng)作业需求。2. 卓越的安全性能：徐工(gōng)QY20K5起重(zhòng)机配备有完善的安全保(bǎo)护装置(zhì)，如超重(zhòng)、超载、超高(gāo)、超限等多种保(bǎo)护装置(zhì)，确保(bǎo)施工(gōng)过程中的安全可靠。3. 灵(líng)活性强：徐工(gōng)QY20K5起重(zhòng)机可360度旋转，配备多段式折叠臂，能够在狭小的工(gōng)作空间内完成复杂的起重(zhòng)作业，提高(gāo)施工(gōng)效率。4. 操控简便：徐工(gōng)QY20K5起重(zhòng)机采用液压驱动，配备操作平台，操作简单便捷，可以迅速(sù)熟悉操作技巧。5. 低运输成本：徐工(gōng)QY20K5起重(zhòng)机整机重(zhòng)量较轻，容易 进行拆装和运输，降低运输成本。6. 低能耗：徐工(gōng)QY20K5起重(zhòng)机采用先进的液压系统和电控系统，具有低能耗的特点，节能环保(bǎo)。7. 可靠性强：徐工(gōng)QY20K5起重(zhòng)机采用高(gāo)强度钢材制造，结构牢固，具有良好的承载性能和稳定性，能够适应各种复杂环境的作业需求。总之，徐工(gōng)QY20K5起重(zhòng)机具有高(gāo)起重(zhòng)能力、安全可靠、灵(líng)活性强、操控简便等优点，适用于各种工(gōng)地起重(zhòng)作业需求。

XCMG QY20K5 crane has the following advantages: 1. high load capacity: XCMG QY20K5 crane has a lifting capacity of 20 tons, which can cope with most of the lifting needs. 2. excellent safety performance: XCMG QY20K5 crane is equipped with perfect safety protection devices, such as overweight, overload, overheight, over the limit, and other protective devices, to ensure that construction is safe and reliable. 3. flexible: XCMG QY20K5 crane can be rotated 360 degrees, equipped with multi-section folding jib to complete complex lifting operations in a narrow workspace, and improve the efficiency of the work. 4. Strong flexibility: XCMG QY20K5 crane can be rotated 360 degrees, equipped with multi-segment folding jib, able to complete complex lifting operations in a small workspace, improve construction efficiency.4. Simple operation: XCMG QY20K5 crane is hydraulically driven, equipped with an operating platform, easy and convenient to operate, and you can quickly familiarize yourself with operating skills.5. Low transportation costs: XCMG QY20K5 crane is lightweight and easy to operate. Crane weight is light, easy to disassemble and transport, reduce transportation costs. 6. low energy consumption: XCMG QY20K5 crane adopts advanced hydraulic system and electronic control system, with low energy consumption, energy saving and environmental protection. 7. strong reliability: XCMG QY20K5 crane is made of high-strength steel, solid structure, good load-bearing performance and stability, and can adapt to a variety of complex environments. It can adapt to the operational needs of various complex environments. In short, XCMG QY20K5 crane has the advantages of high lifting capacity, safety and reliability, flexibility, easy to maneuver, etc., applicable to a variety of site lifting needs.