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D320

D320 bulldozer, a high powered bulldozer, is developed based on introducing technology of Komatsu D155A-1A of Japan, and has passed the quality and performance acceptance inspection by Komatsu laboratory. D320 bulldozer boasts safety, reliability, strong traction, superior operation, flexible and easy control, and convenient maintenance. Its technical specification and reliability index are up to high grade level. The bulldozer is recognized as superior product and famous brand product of Chinese mechanical industry.
 
Technological Advantages of D320 Bulldozer
1. High coefficient of power reserve of the engine, high torque output, low oil consumption and reliable operation.
2. Hydraulic rotary transmission, automatic speed regulation, and shift without stopping the machine.
Bulldozer
3. Final drive by hard ovaloid edge trimming gear, with large carrying capacity and long life.
4. The bulldozing unit can move upwardly, downwardly, and also sideways. Controlled by hydraulic servomechanism, the machine is easy to operate. The hard wearing push broach has high bearing capacity and strong abrasion resistance.
5. The new steering hydraulic control valve ensures flexible operation, labor saving, and high efficiency.
6. The novel and beautiful hexagonal cab boasts a broad vision, better ventilation and excellent airproof property.
7. New integrated three-level warning and electronic monitoring device, matched instrument display and three-level warning.
8. 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

 

 

 

ENGINE

Model

CUMMINS NTA855-C360S10

Type

Water cooling, turbocharged, Aftercooled

Flywheel power (kW)

239

Rated speed (r/min)

2000

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)

207

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.

Bevel gear

Helical bevel gear, Splash lubricated

Steering clutch

Wet, multiple disc clutch, spring loaded, Hydraulic-released

Steering brake

Wet, band brake, operated with hydraulic booster

Final drive

Spur gear, double reduction, splash lubrication

UNDER CARRIAGE

Sprocket

Segmented

Number of track shoes (each side)

7 (5 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/     6.6/     11.5/

Reverse

4.4/     7.8/    13.5/

TRACK

Type

Sealed single grouser

Track pitch (mm)

228.6

Track width (mm)

560

Number of track shoes (each side)

41

Length of track on ground (mm)

3150

Ground clearance (mm)

500

Track gauge (mm)

2140

HYDRAULIC SYSTEM OF WORK EQUIPMENT

Working pressure (Mpa)

13,7

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

335

Pump

CBZ4200 gear pump

Control valve

Hand-operated, plunger type, servo controlling

Cylinder,Boro×Rod×Stroke (mm)

Φ140×Φ75×1340

WORK EQUIPMENT

Blade type

Semi-U blade

Width×Height (mm)

4130x1590

Max.lift above ground (mm)

1560

Max.drop below ground (mm)

560

Pitch adjustment (°)

55

Max.tilt (mm)

1000

Blade capacity (m3)

12.9

Length×Width×Height (mm)

8560×4130×3696

Weight (kg)

35900
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