JOHN DEERE 620G MOTOR GRADERS

Technical Description

The 2022 John Deere 620G is a four-wheel drive motor grader engineered for versatile road construction and maintenance applications. Powered by a John Deere PowerTech PSS 6.8L turbocharged engine, it delivers 160 kW (215 horsepower) with a peak torque of 1,005 Nm (741 lb-ft), featuring a 40% torque rise for enhanced lugging ability. The six-cylinder engine features series turbocharging with charge-air cooling and full-flow spin-on filtration for reliable performance across varying jobsite conditions. The transmission comprises eight forward and eight reverse gears, enabling precise speed control from 1.8 km/h to 45.5 km/h (28.3 mph) depending on gear selection. The closed-center, pressure-compensated load-sensing hydraulic system maintains maximum pump flow of 212 L/min at 18,961 kPa (2,750 psi), delivering responsive blade and circle control. With a 24-inch moldboard cutting edge and optional 24-inch ripper teeth, the machine achieves impressive blade pull of 14,091 kg (31,066 lb.). Weighing 18,325 kg (40,400 lb.) in standard configuration, the grader features optimal weight distribution across all axles for superior grading performance and stability. The design includes 32 degrees of total axle oscillation and 20 degrees of front wheel lean in each direction, enabling exceptional maneuverability on challenging terrain. Optional automation features like SmartGrade integration, Auto-Shift PLUS, and precision mode enhance operator efficiency and accuracy, making this model ideal for contractors, municipalities, and highway maintenance operations.