【 Doosan 220-7 Second-hand Excavator This second-hand Doosan 220-7 excavator is priced at only 68,000 yuan and comes with a breaker, offering an extremely high cost performance. Since leaving the factory, the cumulative working time has only been 4,500 hours, which is far lower than the average usage time of similar equipment. This means that it still has a long service life and good mechanical condition. This excavator is equipped with a high-performance engine independently developed by Doosan, which is powerful and has good fuel economy. It can maintain stable output even under complex working conditions. The electronically controlled fuel injection system it adopts can precisely control the fuel injection volume, improve combustion efficiency, reduce emission pollution, and at the same time lower operating costs. In addition, this machine is also equipped with an advanced cooling system, ensuring that the engine temperature remains at the optimal state during long-term operation and extending the service life of the equipment. In terms of the hydraulic system, Doosan 220-7 adopts an efficient load sensing technology, which can automatically adjust the flow and pressure according to the actual operational requirements, making the 2025-12-13 15:06:15