Komatsu GD955-7R Motor Grader Specifications
GradersMotor Grader Specs
The Komatsu GD955-7R motor grader is a heavy-duty machine purpose-built for mining and large-scale construction applications across Australia. Engineered to deliver exceptional blade pull and precision grading, this model is highly regarded for its ability to build and maintain haul roads, ensuring optimal haul truck efficiency and reduced cycle times in demanding environments.
Equipped with a powerful Komatsu engine and an advanced power shift transmission with a lock-up torque converter, the GD955-7R combines high productivity with excellent fuel efficiency. Its robust frame, spacious operator cab, and state-of-the-art control systems make it a reliable and operator-friendly choice for tier-one mining operations and major infrastructure projects.
Details
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Machinery Specifications
Technical Specification
| Specification | Value |
|---|---|
| Blade Width (Standard) | 5.5m (18ft) |
| Blade Width (Optional) | 6.1m (20ft) |
| Maximum Blade Pull | 28,100kg |
| Minimum Turning Radius | 8.4m |
| Transmission Type | Power shift with torque converter lock-up |
| Forward Speeds | 8 |
| Reverse Speeds | 8 |
| Maximum Lift Above Ground | 640mm |
| Maximum Drop Below Ground | 695mm |
| Maximum Shoulder Reach (Left) | 2,310mm |
| Maximum Shoulder Reach (Right) | 2,310mm |
| Blade Tip Angle (Forward) | 40° |
| Blade Tip Angle (Backward) | 5° |
| Overall Length | 11,530mm |
| Width Over Tyres | 3,415mm |
| Height to Top of Cab | 4,265mm |
| Wheelbase | 7,100mm |
| Ground Clearance | 440mm |
Engine Specification
| Engine Specification | Value |
|---|---|
| Engine Model | Komatsu SAA6D140E-7 |
| Engine Type | Water-cooled, 4-cycle, direct injection, turbocharged, aftercooled |
| Net Power | 317kW (425hp) @ 1,900rpm |
| Gross Power | 318kW (426hp) @ 1,900rpm |
| Displacement | 15.24L |
| Number of Cylinders | 6 |
| Fuel Tank Capacity | 715L |
Additional Information
The Komatsu GD955-7R features an advanced dual-mode transmission that allows operators to select between torque converter mode for high tractive effort and direct drive mode for fuel-efficient, high-speed grading. The spacious, ROPS/FOPS-certified cab is designed with low-effort fingertip controls, excellent all-round visibility, and an integrated rearview camera system to maximise safety on busy mine sites. Additionally, Komatsu’s KOMTRAX telematics system comes standard, providing real-time machine health monitoring, fuel consumption data, and location tracking to optimise fleet management and minimise unscheduled downtime.
Reliable machinery for every project
Quality performance for construction industry needs.
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