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WD Series Elevated Sprocket Bulldozer
Detail
WD7, WD8B and WD9 series bulldozers are track type dozer with elevated sprocket, can be used in transport, desert, oil filed, power station, mine, swamp and large scale soil stone construction.Equipped with power seperating hydraulic mechanic type converter, planetary, power shift and one lever control transmission. Hydraulic direct drive, semi-rigid suspended and hydraulic controls.

WD Series Elevated Sprocket Bulldozer

Features:

1) WD7, WD8B and WD9 series bulldozers are track type dozer with elevated sprocket, can be used in transport, desert, oil filed, power station, mine, swamp and large scale soil stone construction.
2) Equipped with power seperating hydraulic mechanic type converter, planetary, power shift and one lever control transmission.
3) Hydraulic direct drive, semi-rigid suspended and hydraulic controls.
4) Equipped with handy accurate operation system, electric monitoring system and ROPS cabin
5) Ripper and different blade are optional.


Model

WD7

WD8B

WD9

Engine

Model

Cummins NT855-C280S10

Cummins NT855-C360S10

Cummins KTA19-C525S10

Type

Straight vertical, 4 stroke, water cooling, PT pump injection, turbocharged

Flywheel power

169 kw

235 kw

316 kw

Rated speed

2100 rpm

2100 rpm

1800 rpm

Air cleaner

Dry horizontal type with precleaner

Min fuel consumption ratio

235 g/kw.h

235 g/kw.h

235 g/kw.h

Transmission system

Torque converter

Power seperating hydraulic-mechanic type

Transmission

Hydraulic shift, planetary gear, multiple disc clutch, forced lubrication by gear pump, 3 forward and 3 reverse speeds

Steering clutch

Wet,Hydraulic pressed,non-constant engated

Steering brake

Wet,Hydraulic pressed by spring,seperated hydraulic, constant meshed type

Final drive

Two-stage planetary reduction gear mechanism, splash lubrication

Working hydraulic system

Working pressure

18.6 Mpa

22.5 Mpa

18.3 Mpa

Rated flow

194 L/min (2100rpm)

220L/min (2100rpm)

358L/min

Pump

High pressure gear pump

High pressure gear pump

Double vane pump

Track

Type

Delta type,Sprocket is elevated

Delta type,Sprocket is elevated

Delta type,Sprocket is elevated

Track pitch

216 mm

216 mm

240 mm

Track width

560 mm

560 mm

610 mm

Length of track on ground

2890 mm

3280 mm

 

Ground clearance

404 mm

556 mm

517mm

Track gauge

1980mm

2083mm

2250mm

Travel speed

Forward speed

3.9/6.5/10.9 km/h

3.5/6.2/10.8 km/h

3.9/6.7/12.2 km/h

Reverse speed

4.8/8.2/13.2km/h

4.7/8.1/13.9km/h

4.8/8.5/15.1km/h

Undercarriage

Spocket

Segmented

Segmented

Segmented

No. of track rollers each side

7

8

8

Track tension

Hydraulic-adjusted

Hydraulic-adjusted

Hydraulic-adjusted

Blade

Blade type

Straight tilt blade (Angle optional)        

Side tilt blade only       

Side tilt blade only       

Width x Height

3500x1550 mm          

 

 

Max. lift above ground

1170mm

 

 

Grade capability

30°/25°

30°/25°

30°/25°

Blade capacity

8.4 cbm                  

11.24 cbm                  

13.5 cbm                  

Max.digging depth

498mm

582mm

614mm

Ground pressure

71.9Kpa

93Kpa

102Kpa

Overall dimension

7616x3500x3402mm
(with ripper)

7751x3940x3549mm
(with Single Shank ripper only)

8478x4314x3970mm
(with Single Shank ripper only)

Operating weight

23800kgs(without ripper)

37400kgs(without ripper)

44580kgs(without ripper)