The Link-Belt 145 X4S DZ is a compact hydraulic excavator in the Link-Belt X4S series, designed for general earthmoving, utility work, site preparation, and material handling. As part of the 145-size class, it is typically used on construction sites where maneuverability, transportability, and efficient digging performance are important. The X4S platform is associated with updated operator controls, fuel-efficient engine management, and service access designed to support daily operation. The DZ designation identifies a specific configuration within the model line. This excavator is commonly referenced for trenching, grading, backfilling, and light demolition applications in commercial and residential construction environments.