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KOMATSU D51EX-22 bulldozer

Permalink : http://product.cmsou.com/detail_NDgz0---.html    Last Updated : 2014-06-17
KOMATSU D51EX-22 bulldozer

KOMATSU D51EX-22 bulldozer

  • Feature
  • Parameter
All-around Visibility • Super-slant nose design • Cab-forward design • Integrated ROPS/FOPS (level 2) Increased Productivity • Highest HP in its class • Electronically-controlled hydraulically-driven fan • Oscillating track frame with in-shoe final drive • High capacity Power-Angle-Tilt dozer blade Easy Operation/Increased Operator Comfort • Hydrostatic Transmission (HST) with electronic control • Palm Command Control System (PCCS) • New cab damper mounting system • Large and quiet pressurized cab Improved Durability • Heavy-plate steel used throughout • Dozer frame with full steel castings • Modular design • Parallel Link Undercarriage System (PLUS) Easy Maintenance • Electronic monitor panel with onboard diagnostics • Rear-mount radiator with swing-up hydraulically-driven fan • Ground-level daily service checks • KOMTRAX® KOMTRAX® equipped machines can send location, SMR and operation maps to a secure website utilizing wireless technology. Machines also relay error codes, cautions, maintenance items, fuel levels, and much more.
Engine
ModelKomatsu SAA6D107E-1*
Type4-cycle, water-cooled, direct injection
AspirationTurbocharged, air-to-air aftercooled
Number of cylinders6
Bore x stroke4.21" x 4.88"107 mm x 124 mm
Piston displacement408 in³6.69 ltr
GovernorAll-speed, electronic
Horsepower:
SAE J1995 - Gross133 HP99 kW
ISO 9249 / SAE J1349 - Net130 HP97 kW
Hydraulic fan at maximum speed - Net120 HP90 kW
Rated rpm2200 rpm
Fan drive typeHydraulic (reversible)
Lubrication system:
MethodGear pump, force lubrication
FilterFull-flow
*EPA Tier 3 emissions certified
Hydrostatic Transmission
Travel speed
(quick shift mode)
ForwardReverse
1st0–2.1 mph
0–3.4 km/h
0–2.5 mph
0–4.1 km/h
2nd0–3.5 mph
0–5.6 km/h
0–4.0 mph
0–6.5 km/h
3rd0–5.6 mph
0–9.0 km/h
0–5.6 mph
0–9.0 km/h
Travel speed
(variable mode)
ForwardReverse
0–5.6 mph
0–9.0 km/h
0–5.6 mph
0–9.0 km/h
Final Drive
Minimum turning radius:7'10"2.39 m
As measured by track marks on the ground at pivot turn.
Steering
Minimum turning radius:7'10"2.39 m
As measured by track marks on the ground at pivot turn.
Undercarriage
SuspensionOscillating equalizer bar and pivot shaft
Track roller frameMonocoque, large section, durable construction
Rollers and idlersLubricated track rollers
Lubricated tracks:Unique seals prevent entry of foreign abrasive material into pin to bushing clearances to provide extended service life. Track tension is easily adjusted with a grease gun.
Number of track rollers (each side)7
Type of shoes (standard)Single grouser
Number of shoes (each side)44
Grouser height2.1"54 mm
Shoe width (standard)20"510 mm
Ground contact area4,340 in²28000 cm²
Ground pressure
(with dozer, ROPS cab)
6.40 psi0.45 kgf/cm² / 44.2 kPa
Track gauge5'10"1790 mm
Length of track on ground9'0"2745 mm
Coolant & Lubricant Capacity (refilling)
Coolant9.3 U.S. gal35 ltr
Fuel tank71.3 U.S. gal270 ltr
Engine oil5.3 U.S. gal20 ltr
Hydraulic tank16.6 U.S. gal63 ltr
Final drive (each side)1.1 U.S. gal4.0 ltr
Operating Weight (APROXIMATE)
Tractor weight:Including ROPS cab, rated capacity of lubricant, coolant, full fuel tank, operator, and standard equipment.
D51EX-2224,736 lb11220 kg
Operating weight:Including power angle tilt dozer, ROPS cab, operator, standard equipment, rated capacity of lubricant, coolant, and full fuel tank.
D51EX-2228,043 lb12720 kg
Hydraulic System
Closed-center Load Sensing System (CLSS) designed for precise and responsive control and for efficient simultaneous operation.
Hydraulic control unit:
All spool control valves externally mounted remote to the hydraulic tank. Piston-type hydraulic pump with capacity (discharge flow) of 99 ltr/min 26.2 U.S. gal/min at rated engine rpm.
Relief valve setting3,983 psi27.4 MPa / 280 kg/cm²
Hydraulic cylindersDouble-acting, piston type
Number of cylinders:BoreBore
Blade lift / 23.54"90 mm
Blade tilt / 13.94"100 mm
Blade angle / 23.54"90 mm
Hydraulic oil capacity (refilling):
Power angle tilt dozer16.6 U.S. gal63 ltr
Control valves:
3-spool control valve for power angle tilt dozer.
Positions:
Blade liftRaise, hold, lower, and float
Blade tiltRight, hold, and left
Blade angleRight, hold, and left
Additional control valve required for ripper.
Positions:
Ripper liftRaise, hold and lower
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