VOLVO G990 MOTOR GRADERS

Technical Description

The Volvo G990 motor grader is a robust, high-performance machine designed for precise road construction and earthmoving tasks. It features a turbocharged, aftercooled Volvo D9B inline six-cylinder engine with 573 cu in displacement, delivering a maximum power of 277 hp (207 kW) at 1700 rpm and peak torque of 929 lb-ft at 1550 rpm, ensuring strong and efficient operation. The machine measures 31.8 ft in length, with a 21.8 ft wheelbase and a width of 9.1 ft over tires, providing stability and ample reach for grading work. The 14 ft wide moldboard, 31 in high and 1 in thick, supports a max cut depth of 32.5 in, with a blade down pressure of 24,457 lbs and a blade pull capacity up to 37,800 lbs. The circle offers 360-degree rotation, 46° front and 13° rear blade tip angles, and side shifts up to 26.5 in on both sides with additional shifts of 30 in left and 29.5 in right outside tire reach. The hydraulic system includes a 55 gpm axial piston pump operating at 3000 psi relief pressure to ensure responsive blade control. The motor grader supports a max total operating weight of 60,000 lbs with front and rear axle max weights of 18,500 lbs and 42,000 lbs respectively. The fully sequential, direct-drive Volvo HTE 840 powershift transmission provides 8 forward and 4 reverse gears, capable of reaching speeds up to 28.1 mph forward and 19.8 mph reverse. The articulation angle is 21 degrees with a turning radius of 26.8 ft, enhancing maneuverability. It is equipped with 16:00 x 24 G-2 tires and features a 24-volt electrical system with an 80-amp alternator.