利勃海尔LR1400/2起重机有以下优点：1. 高起重能力：利勃海尔LR1400/2起重机具有最大起重能力达到400吨的特点，适用于各种大型工程项目。2. 多功能性：该起重机可以搭载不同类型的附件和配件，如钢丝绳吊具、抓斗、破碎锤等，可以适应不同的工作需求。3. 长臂设计：利勃海尔LR1400/2起重机的臂长可达到约167米，可以覆盖较大的工作范围。4. 强大的动力系统：该起重机采用了高性能的液压传动系统和电动机，可提供稳定和可靠的动力。5. 先进的操作控制系统：利勃海尔LR1400/2起重机配备了先进的电子控制系统，操作简便、准确，提高了工作效率和安全性。6. 高度可调节性：该起重机具有可调节的支腿和护墙板，可以适应不同几何形状的工作场地。7. 先进的安全性能：利勃海尔LR1400/2起重机配备了各种安全装置，如载荷限制器、倾覆保护装置等，确保操作安全。

Liebherr LR1400/2 cranes have the following advantages:1. High lifting capacity: Liebherr LR1400/2 cranes feature a maximum lifting capacity of up to 400 tons, which is suitable for a variety of large-scale projects.2. Versatility: The crane can carry different types of attachments and accessories, such as wire rope spreaders, grabs, crushing hammers and so on, which can be adapted to different working requirements.3. Long boom design: the boom length of Liebherr LR1400/2 crane can reach about 167 meters, which can cover a large working range. 4. Powerful power system: the crane adopts high-performance hydraulic transmission system and electric motor, which can provide stable and reliable power. 5. Advanced operation and control system: Liebherr LR1400/2 crane is equipped with advanced electronic control system, which makes operation simple and accurate, which improves working efficiency and safety.6. Height adjustability: the crane has adjustable outriggers and siding, which can be adapted to work sites with different geometries.7. Advanced safety performance: Liebherr LR1400/2 cranes are equipped with a variety of safety devices, such as load limiter, tipping protection device, etc., to ensure the safety of operation.