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D220

To meet the market demand, D220 bulldozer is developed by absorbing advanced techology from abroad. It boasts reasonable overall arrangement, beautiful design, flexible and comfortable driving, superior performance, convenient maintenance, safety and reliability.
 
Technological Advantages of D220 Bulldozer
 
1. Reasonable mechanism, superior performance, and high technology content.
2. High coefficient of power reserve of the engine, high torque output, low oil consumption, and high reliability.
3. Hydraulic rotary transmission, automatic speed regulation, and shift changing without stopping the machine.
4. It has the final drive by serration and ovaloid edge trimming gear, ensuring uniform bearing and stable transmission of the driving medium, and also extending life time of the driving medium.
Bulldozer
5. Convenient operation, user-friendly design, with two handles on both sides.
6. Innovative ROPS-FOPS protective device, guarding against junk and turning over of the bulldozer.
7. New integrated three-level warning and electronic monitoring device, matched instrument display and three-level warning.
8. The novel and beautiful hexagonal cab boasts a broad vision, better ventilation and excellent airproof property.
9. A wide variety of optional equipment, such as U-shaped shovel, angular shovel, air-conditioned cab, wing shelter, tridentate scarifier, hot spot, ether starting aid and other protective devices, etc.
10. It has multiple innovative products, pipelayer, for example.
 

 

 

ENGINE

Model

CUMMINS NT-855-C280S10

Type

Straight vertical four-stroke, water cooling, PT pump injection, turbocharged

Flywheel power (kW)

162

Rated speed (r/min)

1800

Number of cylinders-bore×stroke (mm)

6-139.7×152.4

Starting method

Starting motor 24V 11kW

Battery

24V (12V×2)-195AH

Air cleaner

Dry horizontal type, precleaned cyclone air cleaner

Min fuel consumption ratio (min)

218

TRANSMISSION SYSTEM

Torque converter

3 element, single stage, single phase

Transmission

Planeary gear, multiple-disc clutch, Hydraulic actuated, forced lubrication by gear pump, 3 forward and 3 reverse speeds Electrical-hydraulic control for model VSD220

Bevel gear

Helical bevel gear, Splash lubricated

Steering clutch

Wet, multiple disc clutch, spring loaded, Hydraulic-released Electrical-hydraulic control for model VSD220

Steering brake

Wet, band brake, operated with hydraulic booster and valve inner linkage Electrical-hydraulic control for model VSD220

Final drive

Spur gear, double reduction, splash lubrication

UNDER CARRIAGE

Sprocket

Segmented

Number of track shoes (each side)

6 (4 single, 2 double)

Track tension

Hydraulic adjusted

Floating seals are used in all track rollers,carrier rollers,sprocket and front idlers

TRAVEL SPEED (km/h)

　

1st/     2nd/    3rd/

Forward

3.6/     6.5/     11.2/

Reverse

4.3/     7.7/    13.2/

TRACK

Type

Sealed single grouser

Track pitch (mm)

216

Track width (mm)

560

Number of track shoes (each side)

38

Length of track on ground (mm)

2730

Ground clearance (mm)

405

Track gauge (mm)

2000

HYDRAULIC SYSTEM OF WORK EQUIPMENT

Working pressure (Mpa)

13,7

Rated delivery (L/min) (2000r/min)

257

Pump

CBT3160 gear pump

Control valve

Hydraulic-operated, plunger type, servo controlling

Cylinder,Boro×Rod×Stroke (mm)

Φ120×Φ70×1054

WORK EQUIPMENT

Blade type

Straight tilt blade

Width×Height (mm)

3725x1315

Max.lift above ground (mm)

1210

Max.drop below ground (mm)

540

Pitch adjustment (°)

55

Max.tilt (mm)

735

Blade capacity (m3)

5.45

Length×Width×Height (mm)

7095×3725×3517

Weight (kg)

25500
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