The Link-Belt 145 X3 Spin Ace is a hydraulic excavator in the Link-Belt X3 series, designed for general earthmoving, utility work, and construction applications. It features a compact operating size for maneuverability in confined job sites while maintaining digging performance and stability. The Spin Ace upperstructure allows the cab and house to rotate within the machine's working envelope, supporting operation in tight spaces. Typical configurations include a diesel engine, hydraulic control system, and excavator boom, arm, and bucket setup. The 145 X3 Spin Ace is used in trenching, site preparation, material handling, and light demolition tasks.