利勃海尔LTM1200-5.1起重机的优点包括： 1. 高起重能力：LTM1200-5.1起重机具有200吨的起重能力，可以应对各种重型起重任务，包括安装建筑物大型钢结构、吊装桥梁和塔吊等。2. 高性能变幅系统：该起重机配备了6段变幅系统，最大变幅范围达到78米，能够实现精确、高效的起重操作，适用于各种场地条件。3. 灵活性和便携性：LTM1200-5.1起重机采用全地形底盘，具有良好的越野性能和适应性，可以适应各种复杂道路和地形条件。此外，该起重机可以拆卸成较小的零部件，方便快速运输和组装。4. 先进安全系统：LTM1200-5.1起重机具备多项安全功能，包括稳定性控制系统和载荷限制系统等，可确保起重操作的安全性和稳定性。此外，起重机还配备了安全警报装置，用于提醒操作员注意危险情况。5. 操作便捷性：该起重机配备了先进的液晶屏操作系统，操作界面友好直观，操作员能够轻松掌握和使用各项功能，提高了起重操作的效率。同时，起重机还具备灵敏的操纵性和快速反应性，使得操作更加精准和方便。

The advantages of Liebherr LTM1200-5.1 crane include: 1. High lifting capacity: LTM1200-5.1 crane has a lifting capacity of 200 tons, which can cope with a variety of heavy lifting tasks, including installing large steel structures of buildings, lifting bridges and tower cranes, etc. 2. High-performance luffing system: The crane is equipped with a 6-segment luffing system, with a maximum luffing range of 78 meters. It can realize precise and efficient lifting operations and is suitable for various site conditions.3. Flexibility and portability: LTM1200-5.1 crane adopts all-terrain chassis with good off-road performance and adaptability, which can adapt to various complex road and terrain conditions. In addition, the crane can be disassembled into smaller parts for quick transportation and assembly.4. Advanced safety system: LTM1200-5.1 crane is equipped with a number of safety features, including stability control system and load limiting system, etc., which can ensure the safety and stability of lifting operation. In addition, the crane is also equipped with a safety alarm device, which is used to remind the operator of the dangerous situation. 5. Convenience of operation: The crane is equipped with an advanced LCD operating system, with a friendly and intuitive interface, which enables the operator to easily grasp and use the functions, and improves the efficiency of the lifting operation. At the same time, the crane also has sensitive maneuverability and quick response, making the operation more accurate and convenient.