Mast crane belongs to the fixed installation of crane, is commonly used in port terminals mast crane, also known as pull rod or bar, is the most simple lifting equipment. Usually made of wood or steel. This kind of crane is simple, convenient installation and lifting weight, construction site restrictions for the characteristics of the small. Especially when hoisting large components and lack of large hoisting machinery, such as lifting equipment more show its superiority. But this kind of crane of the need for more cable wind rope, difficulty moving. In addition, the lifting radius small, flexibility is poor. Mast cranes, therefore, more commonly used in the heavier components, lifting engineering more concentrated, narrow construction site, and the lack of other suitable large hoisting machinery.