Yisheng machinery provide YS-XD50 portable high-speed boring and welding all-in-one machine is the best engineering maintenance equipment, equipment operation only need a person to complete, equipment from the design concept to processing are to the site as the starting point, The actual operation difficulty of workers is greatly reduced, so that maintenance personnel more handy. Main application scope: all kinds of construction machinery structure on the rotary hole, hinged hole, shaft pin hole repair welding after processing, or reaming after adding hole sleeve; Excavators, loaders, pressure machines, cranes and other core hole repair and processing, porous side by side, one-time positioning of the porous processing, to ensure the concentricity of porous。