Komatsu introduced the GD955-7 motor grader to the North American market.
The GD955-7 offers operators the control and precision needed to build and maintain haul roads for truck fleets of 100 tons and up, Komatsu says.
The company says its new machine offers ample horsepower (426 hp at 1,900 rpm) and powerful blade downforce pressure for efficient grading performance. With faster working travel speeds compared to a previous model, Komatsu says the GD955-7 is engineered to increase grading efficiency while reducing maintenance requirements and total cost of ownership.
Despite its large size, Komatsu says the GD955-7 offers excellent maneuverability. The motor grader can execute tight U-turns on a standard 100-ton-class haul road without the need to fully cut the wheel or course correct. The long wheelbase and 27-degree articulation angle allow for a tight turning radius and provide maneuverability for narrow haul road applications in confined spaces and around obstacles.
The newly adopted, long-life circle bearing allows for smooth and precise rotation of the moldboard while eliminating the need for circle play adjustments or replacing wear plates, according to the company. Coupled with a standard auto-lubrication system, the GD955-7 is engineered to help reduce planned and unplanned maintenance downtime while helping to extend life to overhaul, Komatsu adds.
“With significant increases in operating weight, blade downforce pressure and working travel speeds, this new size class motor grader will be a smart choice for increased efficiency on our customer’s mine sites,” says Joseph Sollitt, director of mining support equipment at Komatsu.
