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731M Motor Grader

Configurations of Motor Grader 731M
1. Engine
Type: water-cooled, four-stroke, turbocharged engine
Model: Cummins QSM11-C310/QSM3
Rated power: 228kW/310ps
Rated speed: 2100rpm
Max. torque: 1424Nm at 1300rpm
2. Gearbox
Model: ZF6WG258 from Germany
Type: power shift, electric hydraulic control, with torque converter
Gear shift position: 6 forward and 3 reverse gears
Travelling Speed
Speed/Shift  1  2  3  4  5  6
Forward  5.2  8.1  12.5  19.1  27.1  40
Reverse  5.2  12.5  27.1  -  -  -
3. Axle of Motor Grader
3.1 Rear axle: self-developed drive axle with differential mechanism, main drive, hub reduction gear, and wet brake from Germany ZF or Italy Graziano.
3.2 Front axle: steering driven axle, with the oscillating angle of 16° (vertical direction). The maximum slant angle of the front wheel is 18°, and the maximum steering angle is 50°, at horizontal direction.
4. Tandem Box
Type: oscillating type
Oscillating angle: 15° at vertical direction
Drive: gear drive
5. Braking System of Motor Grader
5.1 Service brake: double circuit braking system with wet type multi-disc brake. The braking for the engineering vehicle is conducted on the middle and rear wheels.
5.2 Stopping brake: the caliper disc brake is installed on the input end of the main drive.
5.3 Auxiliary braking: for stopping brake and emergency braking of the road grader
6. Hydraulic System of Motor Grader
Load-sensing hydraulic system with the system pressure of 24.5MPa.
7. Frame
Articulated frame
8. Blade
Size: 4920×695 (length×chord height)
Rollback angle: 360°
Max. slant angle (L/R): 67°
Max. grading depth: 470mm
9. Tire of Motor Grader
Type: standard tire
Quantity: 6
Size: 18.00-25, 16PR
10. Electrical System and Instrument
Working voltage: 24V
Instrument: various work lights and instruments
11. Main Technical Specifications
11.1 Operating weight: 24000kg (standard)/27500kg (with rear ripper)
11.2 Overall dimensions: 10500×3140×3650 (standard), 12200×3140×3650 (with rear ripper)
12. Optional Parts for the Road Grading Vehicle
12.1 Rear ripper
12.1.1 Width: 2885mm
12.1.2 Number of tooth: 3 (standard type), maximum: 7
12.1.3 Max. grading depth: 460mm
12.2 Air conditioner