Detailed Introduction of Second-hand Doosan 420-7 Excavator This second-hand Doosan 420-7 excavator is currently on sale for only 75,000 yuan, offering an extremely high cost performance. The overall condition of the equipment is good. There is no bucket or cannon, but it has fallen onto the flatbed truck and can be transported to the construction site you specify at any time. This machine has a working duration of 6,000 hours, which is of medium usage intensity. Both the engine and the hydraulic system have undergone professional testing and maintenance to ensure stable and reliable performance. In terms of power, the Doosan 420-7 is equipped with a high-performance diesel engine, which offers strong power output and smooth operation performance. It can maintain high efficiency even under harsh working conditions. It has good fuel economy, low maintenance cost and is suitable for long-term use. In addition, its advanced electronic control system can automatically adjust the rotational speed according to the actual load, which not only ensures work efficiency but also reduces fuel consumption. The hydraulic system is a major highlight of this excavator. It is equipped with high-quality hydraulic pumps and valves, featuring a fast re2025-12-04 19:51:40