Designed for a range of projects, from golf course construction to highway development, the D51PX-24 serves as a versatile crawler dozer engineered for accurate, high-speed grading. The PX model is equipped with a high-capacity, wear-resistant dozer blade.
- Exhibits lower ground pressure compared to the D51EX
- Features greater dirt capacity than the D39
- Demonstrates a production increase of up to 15% over the previous model
Product Features and benefits:
Advanced Undercarriage System for Optimal Performance: The Parallel Link Undercarriage System (PLUS) from Komatsu is meticulously designed to ensure even wear, enabling the machine to utilize undercarriage components nearly 100%. This innovative system significantly reduces undercarriage maintenance costs by up to 40% when compared to conventional undercarriage setups. Strengthened rollers and links further contribute to extending wear life by up to two times.
Versatile PAT Dozer with Adjustable Pitch: Enhance productivity and versatility across various applications with the Power Angle Tilt (PAT) dozer blade, featuring an adjustable blade pitch system. This innovative addition expands the machine’s capabilities, providing adaptability in different work scenarios.
Exceptional Blade Visibility for Precision Control: The Komatsu D61, equipped with an innovative super-slant nose design, ensures exceptional blade visibility. This feature not only improves machine control but also enhances overall efficiency and productivity by providing a clear view of the working area.
HST with Electronic Control for Seamless Operation: The fully electronic control system of the Hydrostatic Transmission (HST) ensures complete automatic shifting, enabling smooth and precise control. The Komatsu-designed HST system allows for Quick-Shift or variable speed selection, enhancing the operational flexibility of the machine.
Convenient Easy-Access Maintenance Features: Designed for efficiency in maintenance, the machine incorporates easy-access features. The swing-up fan, assisted by a gas strut lift system, provides convenient access to the radiator, oil cooler, and charge air cooler. The hydraulic fan includes a reversing mechanism for efficient cleaning in case of any obstructions restricting air flow.
Ergonomic Palm Command Control System Lever: Prioritizing operator comfort and ease of use, the machine is equipped with the Palm Command Control System (PCCS) joystick. This ergonomic, low-effort control system manages all directional movements, including machine travel speed and counter-rotation, ensuring a user-friendly and efficient operation experience.
Product Specifications for D51PX-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 x 4.88 in
- Piston Displacement: 275 in³
- Governor: All-speed, electronic
- Horsepower:
- 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 provides infinite speed changes up to 5.6 mph.
- Variable capacity travel motors allow the operator to select the optimum speed.
- Travel control lock lever and neutral switch.
- 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)
- Variable Mode:
- 0–5.6 mph (Forward), 0–5.6 mph (Reverse)
- Quick Shift Mode:
- Final Drive:
- In-shoe mounted, axial-piston-type travel motors with two-stage planetary gear reduction.
- Compact, in-shoe mount reduces the risk of damage by debris.
Steering System:
- Palm Command Control System (PCCS) joystick control for all directional movements.
- Hydrostatic Transmission (HST) provides smooth, powerful turns.
- Fully electronic control enables adjustment in the monitor.
- Minimum Turning Radius: 102 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
- 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): 28 in
- Ground Contact Area: 6,042 in²
- Ground Pressure (with Dozer, ROPS Cab): 4.66 psi
- Track Gauge: 6 ft. 2 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 PAT Dozer): 27,668 lbs.
- Operating Weight (Including PAT Dozer, ROPS Cab, Operator, Full Fuel Tank): 31,438 lbs.
Hydraulic System:
- Closed-Center Load Sensing System (CLSS) 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: 3,983 psi
- Double-acting, piston-type hydraulic cylinders.
Control Valves (for Power Angle Tilt Dozer):
- 3-spool control valve for PAT Dozer with multiple positions for blade lift, tilt, and angle.
- Additional control valve required for ripper with multiple positions for ripper lift.
Further information on this machine can be viewed by visiting this link https://www.komatsu.com/products/dozers/small-dozers/d51px-24
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