Tag Archives: motor graders

Komatsu offers up another haul road maintenance tool with GD955-7 motor grader

Mining equipment, Mining maintenance, , , , ,

Komatsu has introduced the new GD955-7 motor grader to the North American market, saying the machine offers operators the control and precision needed to build and maintain haul roads for truck fleets of 100 tons (91 t) and up.

This powerful new machine stands out with its 426 horsepower at 1,900 rpm (313 kW at 1,900 rpm) and powerful blade downforce pressure for efficient grading performance, the OEM says. It comes with an operating weight of 47,320 kg and a standard 5.5-m moldboard (6.1-m moldboard is optional).

“With faster working travel speeds compared to the previous model, Komatsu engineered the GD955-7 to increase grading efficiency while helping reduce maintenance requirements and total cost of ownership,” it said.

Despite its large size, the GD955-7 offers excellent manoeuvrability, executing tight U-turns on a standard 91-t class haul road without the need to fully cut the wheel or course correct, the company says. The long wheelbase and large, 27° articulation angle allow a tight turning radius and provide manoeuvrability 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, Komatsu added. 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.

“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,” Joseph Sollitt, Director of Mining Support Equipment at Komatsu Ltd, said.

Milestone Cat 24 Motor Grader set for Rio Tinto’s Pilbara operations

Mining equipment, Mining maintenance, Mining services, Steel and iron ore, , , , , , , , , , ,

Twenty-seven years after introducing the Cat® 24 Motor Grader to the mining market, Caterpillar has celebrated the production of its 1,000th unit.

At a ceremony held on September 22, 2022, Caterpillar executives and motor grader production team members gathered in Decatur, Illinois, to celebrate the production and sale of this milestone machine. The grader, destined for Australia, was sold by Cat dealer, WesTrac Pty Ltd, to Rio Tinto’s Pilbara Operations in Western Australia.

During the event, Caterpillar team members heard from both WesTrac and Rio Tinto Iron Ore representatives, through videotaped comments. The milestone machine includes a special 1,000th unit commemorative plate.

In 1995, Caterpillar introduced the Cat 24 Motor Grader specifically designed to build and maintain haul roads at mining sites with ultra-class haul trucks. Now in its third generation, the Cat 24 offers 399-518 kW of power, weighs 61,950 kg, comes with a 7.3 m moldboard – with an 8.5 m moldboard option – and technology as standard to work wide haul roads efficiently, according to the OEM.

Sam Vedhakumar Manoharan, Caterpillar’s Vice President of Product Management, Earthmoving, said: “The Cat 24 Motor Grader was and continues to be a game changer for maintenance efficiency of the wide haul roads necessary for ultra-class trucks. We thank the many global mining operations and dedicated Cat dealers around the world for their loyalty to the Cat 24 grader.”

Today’s Cat 24 Motor Grader features more than 30% higher power, 13% more weight and a longer rebuild life than previous generations. It will also soon feature a high-performance circle design for further improved reliability.

Stephen Jones, Rio Tinto Iron Ore Managing Director of Planning, Integration and Assets, said: “For years, we have used Cat 24 Motor Graders to maintain our haul roads for our ultra-class trucks. The Cat 24 series offers a great combination of power, weight and blade width to support road maintenance coverage for our large mining fleet. We are honoured to receive the commemorative 1,000th 24 Motor Grader, and this represents the third generation we’ve used across our Pilbara mining operations.”