LW550FN wheel loader, upgraded based on a classical type LW500FN, is a medium and long wheelbase type with matched and optimized systems and upgraded performances. In addition to all advantages of LW500FN kept, it is characterized with longer wheelbase, bigger steering angle, upgraded hydraulic system, shovel loading capacity and higher operation efficiency. It is more suitable to shoveling and loading materials. It is widely applied to workplaces, such as coal yard, railway, construction area, stone material factory and so on. Thus, it is reliable, efficient and widely used.