The Link-Belt 245 X4 DZ SPIN ACE is a crawler excavator in the Link-Belt X4 series, designed for general earthmoving, utility, and site development work. It features the SPIN ACE upperstructure swing system, which allows the cab and counterweight to rotate within a reduced swing radius for operation in confined spaces. The 245 X4 platform is built around a diesel-powered hydraulic excavator configuration with advanced control systems, load-sensing hydraulics, and operator-focused cab features. Typical applications include trenching, grading, material handling, and excavation in urban or restricted jobsite conditions. Exact specifications vary by configuration, attachment, and market.