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WD Series Bulldozer
Detail
Bulldozer (or called as crawler bulldozer, track bulldozer, dozer) is mainly used as construction bulldozer for short-distance moving of earth and gravel and other operations, such as excavating and filling road earthwork, excavating and cinder collecting of pits, riverbed and channels, dam filling, ground leveling, trees cutting, roots removing and aggregate operations.

Features:

1) WD165Y bulldozer is equipped with CAT licensed C6121 engine, which adopts semi-rigid suspended, power shift, hydraulically controlled and swing type of sprayed beam .  It is applicable for road construction, water and electricity   engineering farmland leveling, port building, mining and other engineering   conditions. AlsoWD165Y can be fitted with winch system and be used in lumbering.
2) WD220Y bulldozer is manufactured base on the technology of Komatsu D85A-18 and D85A-23 Japan .It passed the examination of the experts group of shanghai economy committee .Its layout is well designed ,its appearance is nice and modern ,it has a high working performance and is reliable in safety. The machine has used in civil industry widely including large mine ground, port, electricity, road building.
3) WD320Y track type bulldozer is design and manufacture technology is solely imported from D155A-1 track type bulldozer of Komatsu. Efficient and Economic, Cummins NTA855-C360 engine with strong traction and low fuel consumption. High efficient in hydraulic mechanical transmission system, excellent function in steering hydraulic operating system, alleviating operation tiredness and improving work efficiency. Comfortable driving operation, hexagon cab, innovative in model, and wide in eyeshot, applying the latest achievement of mechanical and electrical integration with three-stage alarm electron monitor system to ensure machines operating normally. Most reasonable operation system, controlling more conveniently, nimbly and conveniently.


MODEL

WD165Y

WD220Y

WD320Y

Engine

Model

Shangchai C6121ZG57

Cummins NT855-C280S10

Cummins NTA855

Type

Straight vertical, 4 stroke, water cooling, direct injection type

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

Vertical,four-stroke

Flywheel power

122 kw

162 kw

239kw

Rated speed

1850 rpm

1800 rpm

2000rpm

Transmission system

Torque converter

3 element, single stage, single phase

3 element, single stage, single phase

3-elements,single stage.single phase

Transmission

Hydraulic shift, planetary gear, multiple disc clutch, forced lubrication by gear pump

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

Hydraulic actuated,forced lubricated planetary gear

Bevel gear

Helical bevel gear, splash lubricated

Helical bevel gear, splash lubricated

Helical bevel gear splash lubricated

Steering clutch

Wet type, multiple disc, spring loaded, hand-operated with booster and hydraulic released

Wet type, multiple disc, spring loaded, hydraulic released

Wet,multiple disc,spring loaded hydraulically released

Steering brake

Wet band brake, operated with hydraulic booster

Wet band brake, operated with hydraulic booster and valve inner linkage

Wet,band brake,operated with hydraulic booster

Final drive

Spur gear, double reduction, splash lubricated

Spur gear, double reduction, splash lubricated

Spur gear,double reduction splash lubricated

Working hydraulic system

Working pressure

14 Mpa

13.7 Mpa

13.7Mpa

Rated flow

243 L/min (2000rpm)

257 L/min (2000rpm)

335L/min

Pump

Double gear pump

CBT3160 gear pump

Double gear pump

Control valve

Hand-operated, plunger, servo controlling

Hand-operated, plunger, servo controlling

Hydraulic operated pilot control

Track

Type

Sealed and lubricated single grouser or sealed single grouser

Sealed single grouser

Single grouser

Track pitch

203.2 mm

216 mm

228.6mm

Track width

560(510) mm

560 mm

560mm

Travel speed

Forward speed

3.8/6.6/10.6 km/h

3.6/6.5/11.2 km/h

3.6/6.6/11.5 km/h

Reverse speed

4.9/8.5/13.6km/h

4.3/7.7/13.2km/h

4.3/7.8/13.5km/h

Under carriage

Spocket

Segmented

Segmented

Segmented

No. of track rollers each side

6 (4 single and 2 double)

6 (4 single and 2 double)

7(5 single,2double)

Track tension

Hydraulic-adjusted

Hydraulic-adjusted

Hydraulic