The Link-Belt 350 X4 is a hydraulic excavator in Link-Belt's X4 series, designed for general earthmoving, site development, utility work, and material handling. It is typically equipped with a fuel-efficient diesel engine, advanced hydraulic controls, and an operator cab configured for visibility, comfort, and productivity. The 350 X4 is commonly used in construction and excavation applications that require digging force, reach, and cycle efficiency. As part of the Link-Belt excavator lineup, it is associated with reduced emissions, electronic monitoring, and service access features intended to support routine maintenance and machine uptime on job sites.