Technical Description
The Hyundai ROBEX 250LC-7 is a hydraulic excavator designed for heavy-duty construction and excavation tasks. It features a turbocharged Cummins B5.9-C 6-cylinder, water-cooled diesel engine with a displacement of 359 cubic inches delivering a gross power of 173 hp (163 hp net) at 2000 rpm and maximum torque of 522 lb-ft at 1500 rpm, ensuring robust performance and fuel efficiency. The hydraulic system includes a pump flow capacity of 118.4 gpm and operates at a relief valve pressure of 4690 psi, supporting powerful and precise boom, stick, bucket, and swing functions. The machine supports four boom and stick configurations, with maximum digging depths ranging from 19.9 ft to 24.8 ft, maximum cutting heights up to 32.6 ft, and horizontal reaches up to 35.2 ft, allowing adaptation to various job site requirements.
The excavator's maximum bucket capacity ranges from 1.1 to 2.0 cubic yards, with a reference bucket size of 1.5 cubic yards. Its undercarriage is equipped with 51 shoes per side, 9 track rollers per side, and a 23.7-inch shoe size, providing a track gauge width of 8.5 ft and ground clearance of 1.6 ft. The machine has a maximum travel speed of 3.4 mph and a drawbar pull of 48,559 lbs, with ground pressure at 7.3 psi for stability on different terrains. Swing speed is rated at 12.6 rpm, and the tail swing radius of 9.8 ft helps maneuverability in confined spaces.
The operator cab height is 9.9 ft, and overall shipping dimensions include heights around 11.6–11.8 ft and lengths from 32.6 to 33 ft depending on the boom/stick configuration. Fuel capacity is 89.9 gallons, hydraulic fluid capacity 79.3 gallons, engine oil capacity 6.4 gallons, and cooling system fluid 11.9 gallons. Electrical system runs on 24 volts with a 50-amp alternator. This combination of power, reach, and hydraulic capability makes the Hyundai ROBEX 250LC-7 suitable for a wide range of excavation, loading, and heavy lifting operations.
