Used Caterpillar 312B excavator Dear customer, we are very glad to recommend to you this second-hand Caterpillar 312B excavator with outstanding performance and extremely high cost performance. Since this machine was put into use, its total working time has only been 4,500 hours. For a medium-sized excavator, such a usage duration means it is still in the best working condition. The overall appearance of the machine is well maintained, with no obvious signs of bumps or knocks. The internal structure has also undergone professional testing to ensure its stable and reliable mechanical performance. "Power System This 312B model is equipped with the original imported C4.4 engine from Caterpillar. This engine is renowned for its high efficiency and energy conservation. It not only provides strong power output but also performs exceptionally well in fuel economy. Even in high-load working environments, it can maintain a stable operating state, providing continuous power support for your engineering projects. "Hydraulic System The adoption of an advanced closed center load-sensitive hydraulic system makes the operation more precise and smooth, and the response speed faster. Whether it is digging, loading or leveling the ground, it can all 2025-12-17 12:41:58