KOMATSU GD623A-1 MOTOR GRADERS

The Komatsu GD623A-1 Motor Grader is a heavy-duty articulated machine designed for precision grading and earthmoving tasks. It features a 12.2 ft (3.7 m) moldboard with a 25.4 in (645 mm) height, providing robust cutting and grading capabilities. Powered by a Komatsu 6D125 6-cylinder engine with a displacement of 674.4 cu in (11,051 cc), it delivers 155.6 hp (116 kW) at 2200 rpm, ensuring reliable performance in demanding conditions. The grader has an overall length of 27.9 ft (8.5 m), a wheelbase of 19.7 ft (6 m), and a width over tires of 7.9 ft (2.4 m), with a blade base of 8.6 ft (2.6 m). Standard operating weight is 27,998.8 lbs (12,700 kg), and it is equipped with 13.00-24-10PR tires for stability and traction. The articulated frame offers a 26-degree articulation angle and a turning radius of 22.7 ft (6.9 m), enhancing maneuverability. The transmission provides six forward gears, with a maximum forward speed of 28.9 mph (46.5 km/h) and reverse speed of 35.3 mph (56.7 km/h). Ground clearance at both front and rear axles is 1.2 ft (355 mm), supporting operation on uneven terrain. Fuel capacity is 75.3 gal (285 L), ensuring extended operation between refueling. This model is engineered for durability, efficiency, and operator comfort in a wide range of construction and maintenance applications.