SPE-705 vacuum welding boom is controlled by electric remote control, equipped with a retractable vacuum arm and vacuum cover that support 360° rotation, which can efficiently collect and deal with smoke and harmful gases generated in the welding process, greatly improving the working environment of the workshop. The wire feeding bracket can load 80-120kg. Wire feeders, cables, gas hoses and other components are mounted on the welding arm to avoid scattering these components on the ground and affecting the welding efficiency.