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220 Hp Tractor Dozer

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.

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  • WD220Y
  • WORLD
  • WD220Y
Engine
ModelCummins   NT855-C280S10
TypeStraight   vertical, 4 stroke, water cooling, PT pump injection, turbocharged
Flywheel power162   kw
Rated speed1800   rpm
No. of cylinder-bore x stroke6-139.7x152.4   mm
Starting methodStarting   motor, 24V, 11kw
Battery24V(12Vx2)-195AH
Air cleanerDry   horizontal type with precleaner
Min fuel consumption ratio218   g/kw.h
Transmission system
Torque converter3   element, single stage, single phase
TransmissionHydraulic   shift, planetary gear, multiple disc clutch, forced lubrication by gear pump,   3 forward and 3 reverse speeds
Bevel gearHelical   bevel gear, splash lubricated
Steering clutchWet   type, multiple disc, spring loaded, hydraulic released
Steering brakeWet   band brake, operated with hydraulic booster and valve inner linkage
Final driveSpur   gear, double reduction, splash lubricated
Working hydraulic system
Working pressure13.7   Mpa
Rated flow257   L/min (2000rpm)
PumpCBT3160   gear pump
Control valveHand-operated,   plunger, servo controlling
Cylinder bore x rod x stroke120x70x1054   mm
Track
TypeSealed   single grouser
Track pitch216   mm
Track width560   mm
No. of track shoes each side38
Length of track on ground2730   mm
Ground clearance405   mm
Track gauge2000   mm
Travel speed
Forward speed3.6/6.5/11.2   km/h
Reverse speed4.3/7.7/13.2km/h
Under carriage
SpocketSegmented
No. of track rollers each side6   (4 single and 2 double)
Track tensionHydraulic-adjusted


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