利勃海尔LTM1400-7.1起重机(jī)具有以下优点：1. 高承载能力：利勃海尔LTM1400-7.1起重机(jī)承载能力高达400吨，能满足大部分工(gōng)程项目的起重需求。2. 长臂长度：起重机(jī)配备了领先行业的63米长臂，可实现更大范(fàn)围的起重作(zuò)业。3. 稳定性高：利勃海尔LTM1400-7.1起重机(jī)配备了全球首款单个电机(jī)驱动的8轮K眼字型支腿，支腿部分采用新一代设计，使起重机(jī)能够在各种复杂的工(gōng)况下保持稳定。4. 可靠性强：起重机(jī)采用了高强度钢材和优质的液压系统，具有较高的可靠性和抗风性能。5. 便于移动：起重机(jī)具有自驱动功能，可以快速地从一个工(gōng)地移动到另一个工(gōng)地，提高工(gōng)作(zuò)效率。6. 操作(zuò)方便：起重机(jī)配备了全液晶显示屏的智能化操作(zuò)系统，使操作(zuò)更加方便和精确。7. 多功能性：利勃海尔LTM1400-7.1起重机(jī)可以配备各种附属设备和配件，如夹(jiā)具、吊具等(děng)，可以进行不同类型的起重作(zuò)业。总之，利勃海尔LTM1400-7.1起重机(jī)具有高承载能力、长臂长度、稳定性高、可靠性强、便于移动、操作(zuò)方便和多功能性等(děng)优点，适用于各类起重作(zuò)业。

Liebherr LTM1400-7.1 cranes have the following advantages: 1. high load capacity: Liebherr LTM1400-7.1 cranes have a load capacity of up to 400 tons, which can meet the lifting needs of most projects. 2. long boom length: the cranes are equipped with an industry-leading 63-meter long boom, which enables a wider range of lifting operations. 3. high stability: the Liebherr LTM1400-7.1 crane is equipped with the world's first single motor-driven 8-wheeled K-eye outriggers, and the outrigger part adopts a new generation design, which enables the crane to maintain stability under various complicated working conditions. 4. High reliability: the crane adopts high-strength steel and high-quality hydraulic system, which provides high reliability and wind resistance. 5. Convenient to move: the crane is equipped with a self-driven function, which allows it to be quickly move from one site to another to improve work efficiency.6. Easy to operate: the crane is equipped with an intelligent operating system with a full LCD display, which makes the operation more convenient and precise.7. Multifunctionality: Liebherr LTM1400-7.1 cranes can be equipped with a variety of ancillary equipment and accessories, such as clamps, spreaders and so on, which allow them to carry out different types of lifting operations. In a word, Liebherr LTM1400-7.1 crane has the advantages of high load capacity, long boom length, high stability, high reliability, easy to move, easy to operate and multifunctionality, which is suitable for all kinds of lifting operations.