雷沃重工FR638D旋挖钻的优点主要包括以下几个方面：1. 高效性能：FR638D旋挖钻配备强大的动力系统和高扭矩液力变矩器，能够提供卓越的工作性能和加工效率。同时，该钻机还具有快速动力切换、液力传动平稳、加速稳定等特点，能够有效提升施工效率。2. 高精度控制：FR638D旋挖钻采用先进的液压系统和智能控制技术，能够实现高精度的单点控制和多点控制。操作简便、响应迅速，能够精确定位并控制钻杆的进退、转动和提升等动作，确保施工质量和安全。3. 多功能配置：FR638D旋挖钻具备多种钻探模式和附件配置，适用于不同的地质条件和施工需求。能够实现钻孔、深孔扩底、螺旋渣土连续杆等作业，灵活多样，可满足各种工程需要。4. 舒适安全：FR638D旋挖钻设计了人性化的驾驶室和工作环境，提供了良好的舒适性和可视性。同时，钻机还配备了安全保护装置和自动故障诊断系统，能够及时发现和排除故障，保障施工作业的安全。总的来说，雷沃重工FR638D旋挖钻具有高效、精确、多功能、舒适安全等多个优点，是一款性能出色、可靠稳定的旋挖钻机。

The advantages of FR638D rotary drilling rig of Leiwo Heavy Industry mainly include the following aspects: 1. High-efficiency performance: FR638D rotary drilling rig is equipped with powerful power system and high-torque hydrodynamic torque converter, which can provide excellent working performance and processing efficiency. At the same time, the rig also features fast power switching, smooth hydraulic transmission and stable acceleration, which can effectively improve the construction efficiency.2. High-precision control: FR638D rotary drilling rig adopts advanced hydraulic system and intelligent control technology, which is capable of realizing high-precision single-point control and multi-point control. With easy operation and quick response, it can accurately locate and control the movement of the drill pipe in and out, rotation and lifting to ensure the construction quality and safety.3. Multi-functional Configurations: FR638D rotary drill is equipped with a variety of drilling modes and attachments configurations, which are suitable for different geological conditions and construction needs. It is able to realize drilling, deep hole bottom spreading, auger slag continuous rod and other operations, which are flexible and diversified to meet the needs of various projects.4. Comfort and safety: FR638D rotary drilling rig is designed with a humanized cab and working environment, which provides good comfort and visibility. Meanwhile, the drill rig is also equipped with safety protection devices and automatic fault diagnosis system, which can detect and remove faults in time to ensure the safety of construction operations. All in all, Lovol FR638D rotary drilling rig has many advantages such as high efficiency, precision, multi-functionality, comfort and safety, which makes it a rotary drilling rig with excellent performance, reliability and stability.