Product Details:
Key Features and Applications
Three-Stage Variable Power Engine
The grader is powered by an 18-liter Perkins 2806D-E18TA diesel engine producing 447 kW at 2,100 rpm. Featuring three-stage variable power output, the powertrain automatically optimizes torque delivery based on load resistance and ground speed. This setup reduces fuel consumption during light-load road transit while providing dependable drawbar pull for deep subgrade cuts and heavy rock clearance.
Mining Heavy-Duty Overload Protection
Engineered for demanding open-pit mine haulage routes, the blade drive incorporates a double friction-disc worm gearbox with automatic overload slip protection. When the 7,300 mm moldboard strikes buried boulders or immovable rock faces, the clutch mechanism slips automatically to shield hydraulic cylinders, circle teeth, and the main frame structure from shock damage.
Load-Sensing Proportional Hydraulics
The hydraulic architecture employs a variable displacement piston pump paired with a load-sensing multi-way valve group. Proportional pilot control valves regulate fluid delivery dynamically to match operator joystick movements, ensuring responsive multi-cylinder composite actions and stable blade positioning during fine grading, slope profiling, and ditch clearing.
Gear-Driven Wet-Brake Axle and Braking Stability
The heavy-duty rear drive axle uses internal gear transmission rather than conventional drive chains, improving power transfer efficiency and distributing driving stresses evenly. Operating safety on steep mine haul ramps is maintained by an oil-immersed wet multi-disc service brake system with dual-circuit hydraulic actuation, ensuring continuous thermal dissipation and long maintenance intervals.
Heavy Mining and Infrastructure Applications
Built for severe operating duty, the GR5505 handles haul road construction and maintenance in large open-pit mines, original topography remediation, subgrade spreading, airport runway leveling, water conservancy embankments, and deep snow clearing across expansive sites.
Technical Specifications
| Parameter | Specification |
| Machine Model | GR5505 |
| Equipment Category | Large Heavy-Duty Mining Motor Grader |
| Operating Weight (Standard) | 74,000 kg |
| Engine Model | Perkins 2806D-E18TA |
| Rated Engine Power | 447 kW (600 HP) |
| Rated Engine Speed | 2,100 rpm |
| Forward Travel Speeds | 8 gears (4.6, 5.9, 8.7, 11.7, 17.7, 25.1, 32.2, 42.7 km/h) |
| Reverse Travel Speeds | 4 gears (4.5, 8.7, 17.2, 32.6 km/h) |
| Maximum Tractive Force (f = 0.75) | 380 kN |
| Maximum Gradeability | 25% |
| Service Brake System | Dual-circuit hydraulic wet-type multi-disc brake |
| Tire Specification | 29.5R29 |
| Minimum Turning Radius | 12.5 m |
Dimensions and Operating Range
| Dimensional & Working Parameter | Technical Data |
| Overall Dimensions (Length × Width × Height) | 16,430 × 4,460 × 4,810 mm |
| Moldboard Dimensions (Length × Chord Height) | 7,300 × 1,025 mm |
| Maximum Blade Lift Height Above Ground | 450 mm |
| Maximum Blade Cutting Depth | 500 mm |
| Blade Cutting Angle Range | 28°–70° |
| Maximum Blade Lateral Tilt Angle | 90° |
| Circle Slew Rotation Angle | 360° |
| Minimum Turning Radius | 12.5 m |
| Maximum Front Wheel Steering Angle | ±48° |
| Maximum Front Wheel Tilt Angle | ±17° |
| Maximum Frame Articulation Angle | ±25° |
Supplier Support and Procurement Services
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Genuine Spare Parts Supply: Complete supply support covers replacement cutting edges, end bits, circle drive wear components, hydraulic seal packages, and scheduled service filters.
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Direct Commercial Procurement: Factory-aligned export pricing, machine configuration matching, and project procurement consultation for mining contractors and fleet operators.
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Technical Documentation: Operating manuals, hydraulic and electrical schematics, maintenance schedules, and remote technical guidance.
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Global Logistics Handling: Heavy-haul equipment transport coordination, modular disassembly, export packaging, containerized or break-bulk shipping, and export customs clearance documentation.
Frequently Asked Questions
What engine and power output are featured on the CNFORCE GR5505?
The GR5505 is powered by an 18-liter Perkins 2806D-E18TA diesel engine delivering a rated output of 447 kW (600 HP) at 2,100 rpm, equipped with three-stage variable power technology.
What are the moldboard dimensions and working reach of this large grader?
The standard heavy-duty moldboard measures 7,300 mm in length and 1,025 mm in chord height. It provides full 360-degree rotation, a maximum blade lift height of 450 mm above ground, and a cutting depth of up to 500 mm.
How does the overload protection system protect the moldboard in mining conditions?
The circle drive utilizes a friction-disc worm gearbox with overload protection. If the blade strikes an immovable embedded rock, the friction clutch slips automatically to absorb peak impact forces and protect hydraulic cylinders and mechanical drive components from shock loading.
What makes the GR5505 suitable for severe open-pit mine haul roads?
The machine combines a 74,000 kg operating weight, 380 kN of tractive effort, an enclosed gear-driven wet-brake rear axle, and load-sensing hydraulics, delivering the structural stability and drawbar power required for wide mining haul paths.
