Komatsu PC220-7 excavator is a hydraulic crawler excavator in the 22-ton class, designed for earthmoving, trenching, site preparation, and general construction work. It is powered by a Komatsu diesel engine and uses hydraulic controls for boom, arm, bucket, and swing functions. The PC220-7 is commonly equipped with a standard digging boom, arm, and bucket, with optional attachments depending on application. Typical features include a reinforced undercarriage, operator cab, and service access for routine maintenance. The model is used in construction, utility, quarry, and excavation applications where medium-duty digging and material handling are required.