【 Premium Recommendation 】 A second-hand Caterpillar 312D excavator from 2011. This is a medium-sized excavator that has received wide acclaim in the market. This equipment has a working time of only about 10,000 hours. With proper maintenance, it is in good overall condition and has stable and reliable performance. It is suitable for earthwork, excavation, loading and other tasks under various working conditions. In terms of the power system, this 312D is equipped with an original imported C4.4 engine from Caterpillar, with a maximum power of up to 67 kilowatts. It not only has strong power but also excellent fuel economy, ensuring efficient operation while effectively reducing operating costs. In addition, its advanced electronic control technology enables the engine to maintain the best working condition under different loads, thus extending the service life of the machine. The hydraulic system adopts a closed central circuit design, equipped with a high-performance main pump and multi-way valves. It responds quickly, operates flexibly, and can achieve precise control. Whether it is fine excavation or rapid movement, it can handle it with ease. Meanwhile, the excellent heat dissipation capacity ensures the stability of long-term c2025-12-17 19:36:33