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Home > Equipment > Dozers-Crawlers > D51EX-22

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Dozers-Crawlers - D51EX-22

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Overview

​The Komatsu D51EX-22 dozer, a 13 tonne, 97kW hydrostatic drive crawler dozer fitted as standard with a straight PAT (power/angle/tilt) blade and factory plumbed to take Topcon 2D and 3D machine control systems. This dozer has the new 'unique' cab-forward design, tapered bonnet delivering industry leading visibility. This means improved machine control which results in increased efficiency and productivity.

The unique cab-forward design on Komatsu's new series of small and mid-size dozers has been achieved by moving the radiator to the rear - which also allows for excellent access to engine and transmission components providing easy maintenance of these main components.

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Specifications

Engine

Model
Komatsu SAA4D107E-1
Horsepower, Gross - SAE J1995 (kW)
99 
Horsepower, Net - ISO 9249 (kW)
97
Horsepower, Net - SAE J1349 (kW)
97
Rated RPM
 2200
Fan drive method
Hydraulic
Displacement (litre)
6.69
Number of cylinders
6
​Related Information The engine is a high pressure common rail injection system that is Tier III compliant. The unit also has an automatically controlled hydrostatic driven fan with a cleaning function.​

Weights

Operating weight - total (kg)
13560
Blade weight (kg)
 
Ripper weight (kg)
850

Operation / Application

Blade capacity, standard (m3)
2.7
Blade type, standard
PAT
Blade length, standard (mm)
3045 
Blade height (mm)
1110
Blade cut depth (mm)
461
Ripper type
Fixed
Ripper depth (mm)
428
Related information
Blade
The Power-Angle-Tilt (PAT) blade offers a wide range of working positions, thus ensuring an optimal position for grading efficiency. Blade durability is obtained from a large diameter ball. 

Driveline

Transmission type
Hydrostatic
Number of speeds, Fwd / Rev
3 / 3
Maximum speed, Fwd / Rev (km/h)
9.0 / 9.0
Steering system
Hydrostatic Steering System
Related information
Variable speed or quick shift mode can be selected to achieve maximum effficiency. 

Undercarriage

Shoe size & type
560mm, Single grouser
Link type
PLUS
Related information
Undercarriage life is extended through an oscillating track frame and self adjusting idler support. 

Hydraulic System

Type
Closed-centre Load Sensing System (CLSS)
Related information
 

Dimensions

Length, overall (mm)
 
Track length on ground (mm)
2745
Track gauge (mm)
1790
Height to top of cab (mm)
2997
Ground clearance (mm)
385
Related information
 

Service information

Fuel tank (litre)
270

Communication systems

Internal maintenance monitoring
Yes​
KOMTRAX Satellite tracking
 Yes
Hourly fuel usage
 

Standard Fitment

​ENGINE & RELATED ITEMS
- Komatsu SAA6D107E-1 engine.
- Air cleaner, double paper element type with dust indicator.
- Air intake pipe with pre-cleaner.
- Cooling fan, rear mounted (swing up), hydrostatic driven & reverse cleaning function.
- Exhaust pipe, elbow type.
- Fuel pre-cleaner - 10 micron; and filter - 2 micron.
 
ELECTRIC SYSTEM
- Alternator, 24V, 60 Ampere.
- Batteries, large capacity 2 x 12V 200Ah.
- Starting motor, 24V, 5.5kW.
 
POWERTRAIN & CONTROLS
- Palm Command Control System (PCCS)
- Hydrostatic Transmission (HST) with counter rotation.
- Hydrostatic Steering System (HSS).
- Final drive, planetary gear double reduction.
- Quick shift and Variable speed selection modes.
 
UNDERCARRIAGE
- Sprockets, segmented teeth type.
- Track rollers x 7, carrier rollers x 2.
- Track roller guards, full length.
- Track shoes, 560mm single grouser.
- Parallel Link Undercarriage System (PLUS), including heavy duty track link.
 
PROTECTORS, GUARDS AND COVERS
- Engine hood and side covers.
- Fenders, standard length.
- Radiator mask, louvre type.
- Under Guards.
 
HYDRAULICS & CONTROLS
- Proportional Pressure Control (PPC) blade joystick.
- Blade cylinder hoses, protected.
- Ripper Hydraulics.
 
SPECIAL ARRANGEMENTS
- EPA Tier III regulation arrangement.
- EU III emission regulation arrangement.
- Poor fuel arrangement (water separator).
 
OPERATOR ENVIRONMENT
- Cabin, integrated ROPS/FOPS, pressurised.
- Seat, air suspension type, fabric, reclining & low back.
- Seat belt 78mm, retractable.
- Air conditioner.
- AM/FM Radio, domestic frequency range.
- Rear view mirror.
- Foot rests, high mount.
- Lunchbox & cup holder.
 
OTHER STANDARD EQUIPMENT
- Lockable filter caps & covers.
- Markings and Caution plates for Australia/NZ.
- Painting, Komatsu standard colouring.
- Front pull hook.
- Work lights, cab mounted front x 3, rear x 2.
- Back-up alarm & warning horn.
- Power supply, 12 volt.
- Komatsu Machine Tracking System (KOMTRAX).
- Beacon, rotating type with guard.
 
WORK EQUIPMENT
- Power Angle Tilt (PAT) blade.
- Ripper assembly, multi shank type, fixed digging angle with three ripper shanks.
 
MAINTENANCE SERVICE EQUIPMENT
- Remote grease points for C frame & equaliser.
 
MATERIALS
- Operation and maintenance manual, two sets.
- Parts book, two sets.
 
WARRANTY
- Premium warranty - 36 months / 6,000 hours.
"Specification is subject to change without notice"

Optional Equipment

​- Komatsu - TOPCON machine control systems
- Rigid drawbar
- Medford forest cabin protection system
- Allied H5CT 'Rescue' hydraulic winch
- Allied H5CH high performance hydraulic winch
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Features

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