What does gantry welding machine mean?

Gantry welding machine refers to a kind of welding work. According to the relevant information disclosed in the inquiry, the gantry welder is a technician who carries out welding work in large-scale engineering projects such as gantry crane, large-scale mechanical equipment and large-scale steel structure. Gantry crane is a kind of crane that can span large-scale engineering projects. Because its structural shape is similar to the gantry in traditional Chinese architecture, it needs a lot of steel structure welding work, so it is named. Therefore, for the construction of large-scale projects such as portal cranes, large-scale mechanical equipment and large-scale steel structures, it is necessary to hire professional portal welders to complete the relevant welding work.