Experience versatility and adaptability with this dozer, the “Swiss Army knife” suitable for various applications, from golf course construction to highway projects. Engineered for precise, high-speed grading, it features a standard parallel link undercarriage system with rotating bushings, reducing wear during high-speed reverse travel. The new Tier 4 Final engine and electronically controlled hydrostatic transmission ensure remarkably low fuel consumption without compromising power.
- Expedite the training of new operators.
- Swiftly transition from mass excavation to finished grading.
- Seamlessly integrate 3D design data into your machinery.
- Empower operators for efficient performance, pass after pass.
Product Features and benefits:
Spreads Fill Material Automatically: Lift layer control enables operators to spread fill from existing terrain with the press of a button. The dozer measures the terrain it tracks over and uses the gathered data to plan the next pass. This can result in achieving double production and consistent layers for compaction quality.
Levels Material Even During Rough Dozing: Tilt steering control automatically tilts the blade to maintain straight travel during rough dozing, reducing operator steering input by up to 80%.
Quick Surface Creation: Operators can easily create a temporary design surface with the press of a button. Combined with other IMC 2.0 functions, the crew can begin stripping or spreading using automated input while waiting for the finish grade model.
Close the Operator Skill Gap: Machine logic enables the dozer to continuously learn the terrain and make calculated decisions for the next pass. Intelligent Machine Control helps reduce the skill gap between new and experienced operators.
Advanced Machine Control: In select situations like auto stripping, rough dozing, spreading, and advanced finish grading, operators can choose nearly 100% machine control auto usage. They can even apply automatic control without having a 3D model.
A Machine that Learns from the Operator: Automatic functions empower the dozer to learn from the operator’s blade input, resulting in increased adaptability, easier operation, and less reliance on operator input.
Outstanding Blade Response for Finish Grading: To deliver exceptional grading performance, IMC enables the dozer to anticipate grade transitions and adjust the blade angle accordingly.
Product Specifications for D51EXi-24:
Engine:
- Model: Komatsu SAA4D107E-3
- Type: 4-cycle, water-cooled, direct injection
- Aspiration: Variable geometry, water-cooled, turbocharged, air-to-air aftercooled
- Number of Cylinders: 4
- Bore x Stroke: 4.21 in x 4.88 in
- Piston Displacement: 275 in³
- Governor: All-speed, electronic
- Horsepower (Net):
- SAE J1995 – Gross: 133 HP
- ISO 9249 / SAE J1349 – Net: 131 HP
- Hydraulic Fan at Maximum Speed – Net: 122 HP
- Rated RPM: 2,200 rpm
- Fan Drive Type: Hydraulic
- Lubrication System:
- Method: Gear pump, force lubrication
- Filter: Full-flow
- EPA Tier 4 Final emissions certified
Hydrostatic Transmission:
- Dual-path, hydrostatic transmission
- Infinite speed changes up to 5.6 mph
- Variable capacity travel motors
- Travel speed (quick shift mode):
- 1st: 0–2.1 mph (Forward), 0–2.5 mph (Reverse)
- 2nd: 0–3.5 mph (Forward), 0–4.0 mph (Reverse)
- 3rd: 0–5.6 mph (Forward), 0–5.6 mph (Reverse)
- Travel speed (variable mode): 0–5.6 mph (Forward), 0–5.6 mph (Reverse)
Final Drive:
- In-shoe mounted, axial-piston-type travel motors
- Integrated two-stage planetary gear reduction
- Compact, in-shoe mount reduces the risk of damage by debris
- Bolt-on sprocket ring with triple labyrinth seal design
Steering System:
- Palm Command Control System (PCCS) joystick control for all directional movements
- Hydrostatic Transmission (HST) for smooth, powerful turns
- Fully electronic control with adjustable settings in the monitor
- Minimum turning radius: 94 in (measured by track marks on the ground at pivot turn)
Undercarriage:
- Suspension: Rigid type
- Track Roller Frame: Monocoque, large section, durable construction
- Rollers and Idlers: Lubricated track rollers
- Sealed & Lubricated Track: Track tension 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 Height: 2.2 in
- Shoe Width (Standard): 22 in
- Ground Contact Area: 4,766 in²
- Ground Pressure (with dozer, ROPS cab): 5.79 psi
- Track Gauge: 5 ft. 10 in
- Length of Track on Ground: 9 ft. 0 in
Service Refill Capacities:
- Coolant: 9.8 US gal
- Fuel Tank: 71.3 US gal
- Engine Oil: 4.2 US gal
- Hydraulic Tank: 17 US gal
- Final Drive (Each Side): 1.5 US gal
- Diesel Exhaust Fluid (DEF) Tank: 5.42 US gal
Operating Weight (Approximate):
- Tractor Weight (including ROPS cab, U frame for Power Angle Tilt (PAT) dozer, rated capacity of lubricant, coolant, full fuel tank, operator, and standard equipment): 26,698 lbs.
- Operating Weight (including PAT dozer, ROPS cab, operator, standard equipment, rated capacity of lubricant, hydraulic control unit, coolant, and full fuel tank): 30,380 lbs.
Hydraulic System:
- Closed-Center Load Sensing System (CLSS) designed for precise and responsive control
- Hydraulic control unit with externally mounted spool control valves
- Piston-type hydraulic pump with a capacity of 26 U.S. gal/min at rated engine rpm
- Relief Valve Setting: 3,974 psi
- Hydraulic Cylinders: Double-acting, piston type
- Blade Lift (2): 3.5 in
- Blade Tilt (1): 4 in
- Blade Angle (2): 3.5 in
- Hydraulic Oil Capacity (Refill):
- Power Angle Tilt Dozer: 17 US gal
Control Valves:
- 3-spool control valve for power angle tilt dozer
- Positions:
- Blade Lift: Raise, hold, lower, and float
- Blade Tilt: Right, hold, and left
- Blade Angle: Right, hold, and left
- Additional control valve required for ripper
- Positions:
- Ripper Lift: Raise, hold, and lower
This bulldozer is designed for precise control, efficient operation, and is equipped with features for various earthmoving tasks. If you have any further questions or need additional information, feel free to ask.
Further information on this machine can be viewed by visiting this link https://www.komatsu.com/products/dozers/small-dozers/d51exi-24
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