The rapid development of electronic technology, automation technology in the excavator. In the 1970s, in order to save energy consumption and reduce environmental pollution, second-hand excavator price lists, so excavator easy operation and security operations, reduce excavators noise and improve driver working conditions, the modern second-hand digging machine prices, gradually electronics and automatic control technology on mining. With the improvement of the efficiency of the excavator, energy saving, easy operation, safety and comfort, reliability and durability and other aspects of performance requirements, Nanjing second-hand digging machine prices, prompted the hydraulic integration application on the excavator, and make all kinds of Performance has been a qualitative leap. Dragline dragline also called dragline excavators. Its excavation is characterized by: "backwards down weight cut soil." Suitable for Ⅰ, Ⅱ type of soil excavation down below the surface. When working, use a bucket to throw to the inertial force, the price of second-hand digging machine image, farther than digging, digging radius and depth of excavation is large, but not as flexible and accurate backhoe. Especially for large and deep excavation pit or underwater excavation. Imported second-hand digging machine prices, Jin Hao used excavators, used excavator Hohhot price offered by Shanghai Used Construction Machinery Co., Ltd. Jin Hao. Shanghai Jin Hao Used Construction Machinery Co. (www.jinhaosh.cn) is the Shanghai Minhang District, mining machinery leaders, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. Kim Ho used excavators in leadership with the staff warmly welcome all inquiries negotiations to create jinhao used excavators better future.