Technical Description
The Hyundai HL770-9 wheel loader is a robust heavy-duty machine with an operating weight of approximately 23,100 kg (50,927 lbs). Powered by a Cummins QSL turbocharged 6-cylinder engine, it delivers a net power output of 277 hp at 2000 rpm and peak torque of 1070 lb-ft at 1400 rpm, complying with Tier 3 emission standards. Its bucket capacity is 5.5 cubic yards (4 m³) heaped and 4.8 cubic yards (3 m³) struck, with a bucket width of 10.2 ft (3 m), facilitating efficient material handling. The loader features a maximum hinge pin height of 14.2 ft (4 m), dump clearance at max raise of 10.2 ft (3 m), and a reach of 4.3 ft (1 m) at maximum lift and dump, providing substantial operational versatility.
The hydraulic system, with a variable axial piston pump delivering 90.4 gal/min (341 l/min), enables a rapid cycle time: raise in 5.4 seconds, dump in 1.3 seconds, and lower in 2.8 seconds. The powershift transmission includes four forward and three reverse gears, with top speeds of 25.5 mph forward and 16.8 mph reverse. Axle oscillation is 26°, improving terrain adaptability. The machine’s dimensions include a wheelbase of 11.5 ft (3 m), width over tires of 9.8 ft (3 m), and a cab height of 11.7 ft (3 m), optimized for operator comfort and maneuverability.
Fuel capacity is 120.8 gallons (454 l), with hydraulic system fluid capacity at 77.2 gallons (291 l). The loader includes advanced features like load-sensing hydraulics and durable components for longevity. It supports 24 V electrical systems with a 70 A alternator, ensuring reliable power supply for onboard electronics and attachments. Tires are size 26.5-25, suited for diverse work environments. This model is engineered for productive, efficient heavy lifting and earthmoving tasks in construction, mining, and industrial applications.
