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KOMATSU D31PX-22 bulldozer

Permalink : http://product.cmsou.com/detail_NDgy0---.html    Last Updated : 2014-06-17
KOMATSU D31PX-22 bulldozer

KOMATSU D31PX-22 bulldozer

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The D31-22 is the next addition to an all new HST dozer line based on the D51-22 design concepts. Some of these concepts include Super-slant nose, large mid-mount cab, and durable construction. 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 • Rigid track frame with in-shoe final drive • High capacity Power Angle Tilt dozer blade • Adjustable blade pitch 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 (optional) Improved Durability • Increased bushing diameter • Heavy-plate steel used throughout • Dozer frame with steel castings • Strong modular design • New heavy duty HST components Easy Maintenance • Electronic monitor panel with onboard diagnostics • Rear-mount radiator with swing-up electronically-controlled 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 SAA4D95LE-5*
Type4-cycle, water-cooled, direct injection
AspirationTurbocharged, air-to-air aftercooled
Number of cylinders4
Bore x stroke3.74" x 4.53"95 mm x 115 mm
Piston displacement199 in³3.26 ltr
GovernorAll-speed, electronic
Horsepower:
SAE J1995 - Gross80 HP60 kW
ISO 9249 / SAE J1349 - Net78 HP58 kW
Hydraulic fan at maximum speed - Net71 HP53 kW
Rated rpm2200 rpm
Fan drive typeHydraulic (reversible for cleaning)
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
3rd0–5.3 mph
0–8.5 km/h
0–5.3 mph
0–8.5 km/h
Travel speed
(variable mode)
ForwardReverse
0–5.3 mph
0–8.5 km/h
0–5.3 mph
0–8.5 km/h
Final Drive
Minimum turning radius:7'3"2.2 m
As measured by track marks on the ground at pivot turn.
Steering
Minimum turning radius:7'3"2.2 m
As measured by track marks on the ground at pivot turn.
Undercarriage
SuspensionRigid track frame
Track roller frameSolid one-piece, thick steel, durable construction
Rollers and idlersLubricated track rollers
Lubricated tracks:Unique seals minimize the 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)6
Type of shoes (standard)Single grouser
Number of shoes (each side)40
Grouser height1.9"47 mm
Shoe width (standard)24"600 mm
Ground contact area4,061 in²26200 cm²
Ground pressure
(with dozer, ROPS cab)
4.69 psi0.33 kgf/cm² / 32.3 kPa
Track gauge5'5"1650 mm
Length of track on ground7'2"2185 mm
Coolant & Lubricant Capacity (refilling)
Coolant4.8 U.S. gal18 ltr
Fuel tank51.5 U.S. gal195 ltr
Engine oil2.9 U.S. gal11 ltr
Hydraulic tank15.9 U.S. gal60 ltr
Final drive (each side)0.9 U.S. gal3.5 ltr
Operating Weight (APROXIMATE)
Tractor weight:Including ROPS cab, rated capacity of lubricant, coolant, full fuel tank, operator, and standard equipment.
ROPS cab16,138 lb7320 kg
Operating weight:Including PAT dozer, ROPS cab, operator, standard equipment, rated capacity of lubricant, coolant, and full fuel tank.
ROPS cab18,827 lb8540 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 / 22.95"75 mm
Blade tilt / 13.54"90 mm
Blade angle / 23.15"80 mm
Blade pitch1 adjustable linkage
Hydraulic oil capacity (refilling):
Power angle tilt dozer15.9 U.S. gal60 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
Note: Includes one additional spool for fan control.
Additional control valve required for ripper.
Positions:
Ripper liftRaise, hold and lower
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