Mining and Excavation of Inner Mongolia Open Pit Coal Mine

In November 2010, in Inner Mongolia open-pit coal mine, when the temperature was - 40 ℃ in the deep pit of the open-pit coal mine 60 meters below the surface and all coal and soil layers were frozen, Mr. Ni selected a Volvo 360 excavator and equipped with Yichen AF-30RW drum cutter for coal mining. The coal mining effect was amazing, reaching 40 tons per hour. At that time, the coal price was $110 / ton. Mr. Ni smiled and said: "I earned the money for buying your machine in two days."