XCMG C-series excavators have recived extensive attention overseas due to their excellent cost performance under th national Ⅱ emission standards. This series of models all adopt reinforced chassis, which reduces the height of the undercarrige, enhances the stability of the whole machine during work, strengthens the structure of the traction, and makes the human foot more convenient for people to get on and off. The new cab has a more beautiful appearance. Structural strength and rigidity are higher, safer, wider field of view, more spacious pedal space; new multi-function color LCD monitor, more friendly man-machine interface, new maintenance time reminder function, can remind users on time; use upgrade the new controller improves the overall performance of the machone. The working device uses a more wear-resistant gasket of reinforced resin material to reduce noise and reduce the occureence of abnormal noise. The engine exhaust system uses a flexible connection to reduce air leakage. Occurrred; imported fuel filter, improved oil and water separation capacity, large capacity water cup, reduced maintenance times, increased water level alarm, reminding drivers to maintain in time.