CATERPILLAR 311C U CRAWLER EXCAVATOR

Technical Description

The Caterpillar 311C U is a compact, utility-class hydraulic excavator engineered for versatility and efficiency in demanding construction environments. Powered by a Cat 3064T turbocharged diesel engine with a displacement of 259.4 cubic inches, it delivers a net power output of 79.2 horsepower (59 kW) at 1800 rpm, ensuring robust performance for a wide range of digging and lifting tasks. The hydraulic system features a pump flow capacity of 57.1 gallons per minute and a relief valve pressure of 4974.8 psi, providing responsive and precise control for both standard and auxiliary attachments. With an operating weight of 26,410 lbs, the 311C U offers excellent stability and traction, while its compact dimensions—including a tail swing radius of 5.8 ft and a width to the outside of tracks of 8.2 ft—make it ideal for working in confined spaces. The undercarriage is equipped with 19.7-inch triple grouser shoes, delivering a ground clearance of 1.5 ft and a maximum travel speed of 3.5 mph (5 kph). The excavator’s working ranges include a maximum digging depth of 18.4 ft, a maximum reach along the ground of 26.6 ft, and a maximum loading height of 19 ft. The standard reference bucket capacity is 0.7 cubic yards, and the machine’s design allows for easy integration of additional tools and attachments. The 311C U combines durability, maneuverability, and operator comfort, making it a reliable choice for general excavation, utility work, and landscaping applications.