HYUNDAI ROBEX 320LC-7A CRAWLER EXCAVATOR

Technical Description

The Hyundai ROBEX 320LC-7A is a heavy-duty hydraulic excavator designed for high performance across diverse construction applications. Powered by a turbocharged Cummins QSC 8.3-C engine with a displacement of 506 cu in, it delivers a gross power output of 258 hp (192 kW) and net power of 237 hp (177 kW) at 1750 rpm, generating a maximum torque of 830 lb-ft at 1500 rpm. The machine operates efficiently with a fuel capacity of 126.9 gallons and hydraulic system fluid capacity of 84.6 gallons, supported by a hydraulic pump flow capacity of 137.4 gpm and a relief valve pressure of 5,120 psi. Weighing approximately 70,989 lbs, it features a reinforced box-section lower frame constructed from high-strength steel to endure demanding worksite conditions. Multiple boom and stick configurations enhance versatility, offering max digging depths between 20.3 ft and 27 ft, max cutting heights from 32.7 ft to 35.2 ft, and maximum reach along the ground up to 38.6 ft. Bucket capacities range from 1.2 to 2.8 cubic yards, with a standard reference capacity of 1.9 cubic yards. Dimensions include a track gauge of 8.8 ft, track shoe width of 23.7 in, ground clearance of 1.7 ft, and tail swing radius of 11 ft, optimizing maneuverability. The excavator moves at a top travel speed of 3.3 mph and provides a drawbar pull force of 62,830 lbs. Its swing mechanism delivers a rotation speed of 9.1 rpm with a swing drive fluid capacity of 3 gallons. The cab incorporates advanced ergonomic features with all-weather steel construction, excellent all-around visibility, and vibration minimization via a viscous mounting system. The advanced Computer Aided Power Optimization (CAPO) system automatically adjusts engine and pump power to optimize fuel efficiency and performance under varying load conditions. Additional features include auto deceleration, power boost, self-diagnostic capabilities, and comprehensive instrument panel monitoring for critical systems.