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雷薩重機BJ5449THB-XF（L9-61米）泵車具有以下優點：1. 長臂設計：該型號泵車配備了61米的長臂，可以覆蓋更大的工作范圍，適用于高層建筑和大型工程項目。2. 高效性能：該泵車采用了先進的液壓系統和雙泵雙回路技術，提供了更高的泵送壓力和更大的輸送量，可以快速高效地完成工作任務。3. 穩定性強：該泵車配備了大功率發動機和穩定的底盤結構，能夠在不平坦的路面上保持穩定運行，提供更安全可靠的工作環境。4. 操控方便：泵車采用了電控比例液壓技術，操作簡單靈活，可以精確控制泵送速度和泵送壓力，提高工作效率。5. 維護方便：泵車采用了模塊化設計，各部分可以獨立維護，更換部件方便快捷，降低了維護成本。6. 安全可靠：泵車配備了多重安全保護裝置，如限位開關、溢流閥等，確保了工作過程中的安全性。總的來說，雷薩重機BJ5449THB-XF（L9-61米）泵車以其優異的性能、穩定的運行和高效的工作能力，成為現代建筑施工中不可或缺的設備之一。

LESA HEAVY MACHINERY BJ5449THB-XF (L9-61m) pump truck has the following advantages:1. Long boom design: this model pump truck is equipped with a 61m long boom, which can cover a larger working range and is suitable for high-rise buildings and large-scale projects.2. High-efficiency performance: this pump truck adopts an advanced hydraulic system and double pumps and double circuits technology, which provides a higher pumping pressure and a bigger conveying capacity, and can complete the work tasks quickly and efficiently.3. High stability: this pump truck is equipped with a high-power engine and a stable chassis structure, which can keep running stably on uneven roads and provide a safer working environment. It can complete the work task quickly and efficiently.3. Stability: The pump truck is equipped with a high-power engine and stable chassis structure, which can maintain stable operation on uneven road surface and provide a safer and more reliable working environment.4. Convenient manipulation: The pump truck adopts electronically-controlled proportional hydraulics, which is simple and flexible in operation, and it can accurately control the pumping speed and the pumping pressure, and improve the working efficiency.5. Convenient maintenance: The pump truck adopts modular design and double-pump double-loop technology, which provides higher pumping pressure and higher delivery volume, and can complete the work tasks quickly and efficiently. 6: The pump adopts modularized design, each part can be maintained independently, and it is convenient and quick to replace the parts, which reduces the maintenance cost.6. Safe and Reliable: The pump is equipped with multiple safety protection devices, such as limit switches, relief valves, etc., which ensures the safety of the working process. All in all, with its excellent performance, stable operation and efficient working ability, Leesa Heavy Machinery BJ5449THB-XF (L9-61m) pump truck has become one of the indispensable equipments in modern building construction.