Motor Graders

GD955-7R

GD955-7R weighing more than 47 tonnes, this mining heavyweight boasts a new high power Komatsu engine, and new cabin ergonomics for an effortless, intuitive driving experience. Komatsu designed, developed, and manufactured frames, transmission, and axles, which are ultra-heavy duty, to offer maximum uptime in even the most extreme applications.

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GD955-7R

Powerful

GD955-7R is designed to deliver higher productivity and efficiency in demanding mining operations. The long wheelbase geometry, characteristic of Komatsu graders, provides stability while still allowing sharp turning through wide steering and articulation angles. This maneuverability enables the machine to turn smoothly on a 24 m wide road without wheel cut-off, while the extended blade width and wide articulation angle ensure a broader and more efficient working range.

GD955-7R

First class comfort

Building on our experience in motor grader development, the GD955-7R retains the proven industrial-standard lever pattern to provide precise and intuitive operation. The GD955-7R continues to feature a steering wheel. The redesigned control system reduces arm movement and relieves operator stress thanks to an ergonomic console layout. In addition, increased space behind the seat allows greater rearward seat adjustment, further improving cab comfort and operator positioning.

GD955-7R

Ripper

The frame is highly resistant to bending and twisting, thanks to its large-section structure, use of high-tensile steel plates, simplified design, and optimized plate thickness. This results in a durability life that is twice as long as before. To match the increased machine size, the ripper beam and link have been reinforced, with the number of shanks ranging from three up to seven, providing greater versatility for demanding applications.

GD955-7R

Moldboard

The frame is strong against bending and twisting due to large section structure with high tension steel plates, simplified structure, and optimum plate thickness. The durability life is twice as long as before

GD955-7R

Safety

The standard 14 LED working lamps improve safety and efficiency during night shifts, while the convenient LED access and service lamps further enhance safe operation and maintenance. A 5-camera and 5-radar system provides a comprehensive bird’s-eye view around the machine through the KomVision monitor, complemented by an additional rear-view monitor for the operator. Radar-based object detection supports safer operation when working near other vehicles. For added safety in abnormal situations, a secondary engine shutdown switch is located inside the cab.

GD955-7R

Maintenance

Large hinged, lockable doors are standard and provide easy access to the engine and radiator service points, allowing spin-on filters to be changed quickly. Circuits and fuse sizes are clearly identified in the fuse panel located in the cab, simplifying troubleshooting. The tandem oil check point is conveniently positioned at the end of the tandem, while refueling from the ground ensures safe and easy operation. Engine oil, hydraulic oil, and coolant drains are all strategically placed for efficient maintenance. In addition, the tandem axle step features a punched metal foot plate to provide stable footing during inspection and service tasks.

GD955-7R

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