A gantry crane is a type of mobile gantry on the ground, equipped with brake-equipped load-bearing wheels that allow it to move across the surface. It is suitable for lifting items on the ground. The mobile gantry crane, also known as a gantry frame or hoisting frame, is an excellent choice for lifting ranges of 125-2000kg. Its advantages include mobility, simple structure, quick disassembly and installation, small footprint, and can be moved to another location using a small car for installation and use. It can serve as a material handling and turnover bearing tool, as well as an auxiliary operation tool for lifting goods, making it a common lifting equipment in modern warehousing and logistics. The lifting forms of the mobile gantry include electric hoists and hand-pulled hoists, available in voltages of 220V and 380V, and walking forms include electric trolleys and manual trolleys. They are divided into manual push movement and electric walking, and can be selected according to usage needs.