【 Doosan 300-7 Second-hand excavator with Hammer This Doosan 300-7 second-hand excavator with hammer is a very popular medium-sized excavator in the market. It not only has a powerful digging force but is also equipped with a breaker, making it highly suitable for operations in complex environments such as mines and construction sites. This machine has a working time of 4,500 hours, which is in the golden period of mechanical performance. It not only ensures the stability of the equipment but also avoids the problems of the initial running-in of new machines. In terms of power, this excavator is equipped with an efficient Cummins engine, with a maximum power output of 210 horsepower, ensuring strong power output and excellent fuel economy. Meanwhile, the advanced electronic control system can automatically adjust the engine speed according to the actual working conditions, achieving the best working efficiency and fuel consumption ratio. The hydraulic system adopts Doosan's unique intelligent hydraulic technology. By optimizing the design of pumps and valves, the entire machine operates more smoothly and stably, with a faster response speed. It can easily handle both precise excavation and heavy-load operations. In addition, its out2025-12-04 09:03:16