【 Premium Recommendation 】 Caterpillar 320CU excavator, this is a second-hand construction machinery that is highly praised in the market. Since its commissioning, this machine has accumulated a working time of only 4,500 hours, which is far lower than the average service life of similar equipment, ensuring its good mechanical condition and a relatively long remaining service life. This equipment is equipped with an original imported C7.1 engine from Caterpillar, featuring advanced intercooling technology. It not only effectively reduces the intake air temperature and enhances combustion efficiency, but also significantly improves fuel economy and reduces operating costs. More importantly, the three core components of this excavator (engine, pump, and main valve) have not undergone any disassembly or replacement, ensuring the machine's original working performance and reliability. In terms of the hydraulic system, this machine is equipped with a high-efficiency and energy-saving hydraulic pump and control system independently developed by Caterpillar. It features high operational sensitivity and fast response speed, and performs exceptionally well in both digging force and traveling speed. After professional testing, the entire hydrau2025-12-13 11:29:39