A gantry crane is a type of crane that consists of a hoist and a beam supported by two or more legs. It is designed to move heavy loads horizontally and vertically, making it ideal for construction sites, warehouses, and shipping yards. Gantry cranes can be found in various sizes, from small models used in workshops to large ones used in shipyards. These cranes are often used to lift and transport materials like steel beams, containers, and machinery. They can be powered manually or by electric motors, and some models are portable, allowing for easy relocation. Gantry cranes are essential for improving efficiency and safety in material handling tasks.