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中聯重科ZR140L旋挖鉆的優點包括：1. 強大的受力能力：ZR140L旋挖鉆采用了稠密的鋼板焊接結構和高強度材料，能夠承受大量的工作載荷，具有較高的受力能力。2. 高效的工作性能：旋挖鉆配備了強勁的發動機和液壓系統，能夠以較高的轉速和扭矩進行旋挖作業，提高工作效率和生產率。3. 精準的控制系統：ZR140L旋挖鉆配備了先進的液壓控制系統，具有高度精確的控制能力，能夠實現精準的位置調整和操作，提高工作的精度和可靠性。4. 安全可靠：該型號旋挖鉆具備多重安全保護措施，如限制器、過載保護裝置等，能夠有效保護設備和操作人員的安全，減少事故發生的風險。5. 便捷的維護保養：ZR140L旋挖鉆的維護保養點設置合理，易于維修和保養，節省了維護時間和成本。6. 多功能應用：該型號旋挖鉆可以根據需要配備多種工作裝置，如鉆桿、鉆頭等等，可適應不同的施工需求，提供多種功能和選擇。

Advantages of Zoomlion ZR140L rotary drilling rig include:1. Strong stress capacity: ZR140L rotary drilling rig adopts dense steel plate welded structure and high-strength materials, which is able to withstand a large amount of working load with high stress capacity.2. High-efficiency working performance: the rotary drilling rig is equipped with powerful engine and hydraulic system, which is able to carry out rotary drilling operation with high rotational speed and torque to improve Precise control system: ZR140L rotary drilling rig is equipped with advanced hydraulic control system, which has highly precise control ability, and can realize precise position adjustment and operation, and improve the precision and reliability of work. 4. Safe and reliable: This model of rotary drilling rig is equipped with multiple safety protection measures, such as limiter, overload protection device, etc., which can effectively protect the safety of the equipment and operators, reduce the risk of accidents. 5. Convenient maintenance: The maintenance points of ZR140L rotary drill are reasonably set up, easy to repair and maintain, which saves maintenance time and cost.6. Multi-functional application: This model rotary drill can be equipped with many kinds of working devices according to the needs, such as drilling rods, drilling bits and so on, which can be adapted to the different construction needs and provide a variety of functions and choices.