NKD120 bulldozer is rigid suspended, power shift, hydraulically controlled and track-type. It is applicable for road construction, water and electricity engineering, farmland leveling, port building, mining and other engineering conditions.
Main specifications
(Standard type: angle blade, straight tilting blade is optional)
Overall dimensions (L × W × H) : 4336 × 3372 × 2845 mm
Operation weight : 12.0t
Flywheel power : 81kW
Max. drawbar pull: 94 kN
(The efficient force depends on weight and ground surface adherence)
Ground pressure (at operating weight): 61 kPa
Min. ground clearance: 315 mm
Grade ability: Straight 30 ° Side 25 °
Working efficiency : 2.5 m 3 /kW · h ( Angle )
Capacity of single blade: 3.1 m 3 ( A )
Diesel engine
Manufactured factory: YITUOLUOYANG ENGINE CO., LTD
Model: LR6105ZG 60A
Type: 6 cylinder in-line,water-cooled, 4 stroke, turbocharged
Number of cylinders-bore ╳ stroke: 6-105 × 125mm
Total piston displacement: 6.5L
Rated RPM: 2000r/min
Rated power: 90kW
Oil consumption (at rated power output)
Fuel consumption: ≤ 235g /kW · h
Lube oil consumption: ≤ 1.6g /kW · h
Max. torque (1400-1500r/min): ≥ 515 N · m
Cooling method: closed circulation water cooling
Starting method: by electric at 24V
Damper and transmission
Damper absorb impact and shock through friction disc and damping spring.
Planetary, power shift transmission with three speeds forward and three speeds reverse. Speed and direction can be quickly shifted.
Forward Reverse
First speed 2.32 km/h First speed 3.05 km/h
Second speed 4.46 km/h Second speed 5.59 km/h
Third speed 7.93 km/h Third speed 9.93 km/h
Steering and braking
The steering clutch is tighten by pressured springs and separated hydraulically with oil-type,multi-powder-metal discs.
The brakes are oil,two-direction floating band with mechanism foot pedals. Hydraulically actuated hand levers combine steering and braking in one control.
Final drive
The final drives are double reduction with spur gear and unitary sprocket, which are sealed by floating oil seal for easy service.
Undercarriage
The undercarriage is box-type welded section.The track rollers, carrier rollers and front idlers have the same floating seals which are long-service life and seal well. Hadraulically adjusted, springs absorb impact.
Number of track rollers: 3 single-flange on each side
2 double-flange on each side
Number of carrier roller : 1 on each side
Number of front idler: 1 on each side
Track type: single grouser shoe, sealed.
Track adjuster type: hydraulically adjusted
Pitch: 175 mm
Numbers of shoe: 38
Width of shoe: 460 mm
Length of track on ground: 2200 mm
Implement hydraulic system
It consists of implement pump, hydraulic oil tank, valves, cylinders, oil filters and lines. It is controlled by disc type, multiple valve. Operation is flexible and convenience.
Pump type: gear oil pump
System output : 123 L /min
System pressure: 12 MPa
Basic hydraulic system
It is composed of steering brake and transmission double hydraulic System. The transmission system is cooled forcely.
Pump type: Gear oil pump
System output: 72.5/ 46.5 L /min
System pressure: 1.96/2.6 MPa
Cab
The cab with adjustable seat features low noise and wide visible range .
Service refill
Fill location Capacity(L)
Radiator and diesel engine water: 35
Lubricating system of diesel engine Oil: 20
Flywheel house Oil: 1.25
Transmission Oil: 30
Bevel gear case Oil: 70
Final drive(each) Oil: 30
Implement hydraulic system Oil: 90
Fuel tank Oil: 190
Track roller, carrier roller, front idler(each) Oil: 0.35
Blade specifications
Blade Angle Straight tilting
Width 3372 mm 2988 mm
Height 963 mm 1010 mm
Max digging depth: 350 mm 350 mm
Max ground clearance: 850 mm 800 mm
Tilting angle: 8 °
Horizontal swing angle: 25 °
Blade capacity: 3.1 m 3