【 Premium Recommendation 】 The 2021 Longgong 550 excavator, with the same configuration as the Sany Heavy Industry 550, has an actual working time of only 7,000 hours. This equipment not only boasts outstanding performance but also offers an extremely high cost-performance ratio. The brand-new equipment, which was originally very expensive, can be owned here for just over 400,000 yuan. In terms of the power system, this machine is equipped with a high-performance engine, ensuring strong power output and smooth operation under various complex working conditions. Whether it is excavation, loading or crushing operations, they can all be handled with ease, demonstrating outstanding work efficiency. In addition, its advanced fuel injection technology has significantly improved fuel economy and reduced operating costs. The hydraulic system adopts core components of internationally renowned brands, ensuring the stability and reliability of the entire system. The precise control response and excellent digging force make the operation more flexible and effortless. Even when facing hard rocks, tasks can be completed with ease. Meanwhile, the optimized hydraulic circuit design effectively reduces energy loss and further enhances work efficiency2025-12-11 07:47:52