The GD955-7 provides operators with the control and precision required for constructing and maintaining haul roads catering to truck fleets of 100 tons and above, making it a valuable addition to Komatsu's motor grader lineup. Distinguished by its substantial horsepower and robust blade downforce pressure, this new machine ensures efficient grading performance. Engineered by Komatsu for enhanced grading efficiency and reduced maintenance needs, the GD955-7 boasts faster working travel speeds compared to its predecessor.
- Horsepower: 426 HP @ 1900 rpm (313 kW @ 1900 rpm).
- Operating weight: 104,323 lb. (47,320 kg).
- Mouldboard: 18-ft (5.5 m) standard, with an optional 20-ft (6.1 m) mouldboard.
Despite its considerable size, the GD955-7 exhibits excellent maneuverability, capable of executing tight U-turns on a standard 100-ton class haul road without requiring a full wheel cut or course correction. Its long wheelbase and a substantial 27-degree articulation angle enable a tight turning radius, providing maneuverability in narrow haul road applications within confined spaces and around obstacles.
The newly adopted long-life circle bearing ensures smooth and precise rotation of the mouldboard, eliminating the need for circle play adjustments or replacing wear plates. Combined with a standard auto-lubrication system, the GD955-7 is designed to minimize planned and unplanned maintenance downtime, thereby extending the overall operational life.
Joseph Sollitt, Director of Mining Support Equipment at Komatsu Ltd., emphasized, "With significant enhancements in operating weight, blade downforce pressure, and working travel speeds, this new motor grader in its size class proves to be a strategic choice for increased efficiency at our customer's mine sites."
by Jane Bentham