The Komatsu PC400-1 is a heavy-duty crawler excavator engineered for demanding construction and material handling applications. This robust machine features a turbocharged Cummins NT855C engine delivering 263 horsepower, providing substantial power for challenging excavation tasks. The excavator's versatile design accommodates multiple attachment configurations, including two backhoe boom/stick options and a loading shovel capability, making it adaptable to diverse job site requirements. With backhoe boom/stick option one, the PC400-1 achieves a maximum cutting height of 35.5 feet and a maximum digging depth of 24.8 feet, while generating an arm crowd force of 35,270 lbs-ft. The second boom/stick configuration extends performance capabilities, reaching 37.4 feet cutting height and 29.5 feet digging depth with 27,117 lbs-ft arm crowd force. When configured as a loading shovel, the machine delivers an impressive 65,035 lbs-ft arm crowd force with a maximum digging depth of 13.9 feet. The machine operates with a 118.9-gallon fuel capacity and 79.3-gallon hydraulic system fluid capacity, supporting extended work periods. The crawler undercarriage features optional shoe widths of 24.1 inches or 30 inches, with ground pressures ranging from 9.3 to 12.1 psi depending on configuration and shoe selection, enabling operation on soft terrain. The PC400-1 weighs approximately 94,800 lbs in loading shovel configuration, travels at a maximum speed of 2 mph, and achieves a swing speed of 7 rpm. These specifications make the PC400-1 ideal for trenching, material loading, and general excavation work.