Komatsu GD955-7 Motor Grader Specifications

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The Komatsu GD955-7 Motor Grader is a high-performance machine engineered for large-scale earthmoving, road building, and mining applications. Powered by a robust 426 HP Tier 4 Final Komatsu SAA6D140E-7 engine, it delivers exceptional torque of 2150 Nm and smooth operation with its full power shift transmission and torque converter. Featuring a massive 15.24 L displacement and advanced hydraulics producing 315.2 L/min flow, the GD955-7 ensures precision grading and outstanding productivity. Its 6.1 m optional moldboard, 32° total oscillation angle, and 130° blade rotation offer unmatched versatility. With a reinforced frame, 48.57-ton operating weight, and cutting-edge operator comfort systems, this grader is built for performance in the most demanding job sites. It’s the ultimate solution for long haul road maintenance, heavy-duty grading, and large-scale infrastructure development.

Komatsu GD955-7 Motor Grader Specifications

PERFORMANCE (Moldboard/Blade)

Blade Height
0.960m
Blade Length
5.489m
Blade Rotation Angle
130°
Blade Tilt Angle
14°
Max Depth of Cut
0.498m
Max Lift Above Ground
0.542m

ENGINE

Displacement
15.24L
Engine Brand
Komatsu
Engine Model
SAA6D140E-7
Engine Power
426HP
Fuel Tank Capacity
717L
Max Torque
2150Nm
Rated Speed
1900rpm

OPERATING WEIGHT & LOAD CAPACITY

Front Axle Load
14070kg
Operating Weight
48.57Ton
Rear Axle Load
34500kg

DIMENSIONS

Ground Clearance
710mm
Overall Height
3.990m
Overall Length
13.200m
Overall Width
3.685m

HYDRAULIC SYSTEM

Hydraulic Flow Rate
315.2L/min
Hydraulic Pressure
275.0Bar

TRANSMISSION & PERFORMANCE

Max Travel Speed
44.4 km/h
Number of Gears (Fwd/Rev)
8F/8R
Transmission Type
Full power shift with torque converter and lockup

STEERING & TURNING

Oscillation Angle
32°
Steering Angle
50°
Steering Type
Hydraulic power steering
Turning Radius
9.3m

BRAKE SYSTEM

Parking Brake Type
Spring applied, hydraulically released wet disc
Service Brake Type
Wet multiple-disc, hydraulically actuated

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