2023 Komatsu Dozers D51PX-24
- Year 2023
- Make Komatsu
- Model Dozers
- Engine Model: SAA4D107E-3 | Fan drive type: Hydraulic
2023 Komatsu Dozers D51PX-24
2023 Komatsu Dozers D51PX-24
An all-around dozer that deliversFrom golf course construction to highway projects, the D51PX-24 is an all-around crawler dozer built for precise, high-speed grading. The PX model has a high-capacity, high-wear resistant dozer blade.
Features may include:
- Lower ground pressure than D51EX
- More dirt capacity than the D39
- Production increased by up to 15% over prior model
- Designed to wear evenly so the machine provides close to 100% usage of undercarriage components, Komatsu PLUS undercarriage lowers undercarriage maintenance costs by up to 40% over a conventional undercarriage. Strengthened rollers and links increase wear life up to two times.
- Expand your productivity and gain more versatility in a variety of applications with a power angle tilt (PAT) dozer blade with adjustable blade pitch system.
- An innovative super-slant nose design provides excellent blade visibility for improved machine control and increased efficiency and productivity.
- Fully electronic control provides complete automatic shifting and enables smooth control. Equipped with Komatsu-designed HST, this machine allows for Quick-Shift or variable speed selection.
- A swing-up fan with a gas strut-assisted lift system provides easy access to the radiator, oil cooler and charge air cooler. The hydraulic fan has a reversing fan for cleaning any objects that are restricting air flow.
- Designed for your operator’s comfort and ease of use, the ergonomic, low-effort palm command control system (PCCS) joystick controls all directional movements, including machine travel speed, as well as counter-rotation.
Engine
Engine Manufacturer
Komatsu
Engine
Model: SAA4D107E-3 | Fan drive type: Hydraulic
Engine Type
4-cycle, water-cooled, direct injection
Aspiration
Variable geometry, water-cooled, turbocharged, air-to-air aftercooled
Cylinder Liners
4
Bore
4.21 in
Stroke
4.88 in
Displacement
Piston: 275 in³
Engine Power
SAE J1995 - Gross: 133 HP | ISO 9249 / SAE J1349 - Net: 131 HP | Hydraulic fan at maximum speed - Net: 122 HP
Rated Engine Speed
2,200 rpm
Lubrication
Method: Gear pump, force lubrication | Filter: Full-flow
Drivetrain
Governor
All-speed, electronic
Transmission
Dual-path, hydrostatic transmission provides infinite speed changes up to 5.6 mph. The variable capacity travel motors allow the operator to select the optimum speed to match specific jobs. Travel control lock lever and neutral switch. | Travel speed (quick shift mode)* Forward: 1st: 0–2.1 mph / 2nd: 0–3.5 mph / 3rd: 0–5.6 mph/ Travel speed (variable mode): 0–5.6 mph | Travel speed (quick shift mode)* Reverse: 1st: 0–2.5 mph / 2nd: 0–4.0 mph / 3rd: 0–5.6 mph/ Travel speed (variable mode): 0–5.6 mph
Drive System
Final drive: In-shoe mounted, axial-piston-type travel motors, with integrated two-stage planetary gear reduction. Compact, in-shoe mount reduces risk of damage by debris. Bolt-on sprocket ring with triple labyrinth seal design.
Steering
Palm Command Control System (PCCS) joystick control for all directional movements. Pushing the joystick forward results in forward machine travel, while pulling it back reverses the machine. Simply tilt the joystick to the left or right to make a turn. Tilting the joystick fully to the left or right activates counter-rotation. Hydrostatic Transmission (HST) provides smooth, powerful turns. Fully electronic control enables smooth control that can be adjusted in the monitor. The PCCS utilizes shift buttons to increase and decrease speed.
Suspension
Suspension
Rigid type
Operational
Ground Pressure
(with dozer, ROPS cab): 4.66 psi
Hydraulics
Hydraulic Type
control unit: All spool control valves externally mounted remote to the hydraulic tank. Piston-type hydraulic pump with capacity (discharge flow) of 26 U.S. gal/min at rated engine rpm. | cylinders: Double-acting, piston type | 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
Maximum Pressure
Relief valve setting: 3,983 psi
Chassis
Frame Type
Track roller frame: Monocoque, large section, durable construction
Dimensions
Turning Radius
Minimum: 94 in
Height
Grouser: 2.2 in
Width
Shoe width (standard): 28 in
Dimensions
Ground contact area: 6,042 in²
Gauges
Track gauge: 6 ft. 2 in
Length
of track on ground: 9 ft. 0 in
Bore
Hydraulic Number of cylinders: Bore (Blade lift/2: 3.5 in / Blade tilt/1: 4 in / Blade angle/2: 3.5 in)
Capacities
Cooling System
9.8 US gal
Fuel Capacity
tank: 71.3 US gal | Final drive (each side): 1.5 US gal | Diesel Exhaust Fluid (DEF) tank: 5.42 US gal
Oil capacity
Engine: 4.2 US gal
Hydraulic Capacity
tank: 17 US gal | oil capacity (refill): Power angle tilt dozer 17 US gal
Weights
Weight
Tractor: Including ROPS cab, U frame for Power Angle Tilt (PAT) dozer, rated capacity of lubricant, coolant, full fuel tank, operator, and standard equipment. : 27,668 lbs.
Weight, In Running Order
Operating: Including Power Angle Tilt (PAT) dozer, ROPS cab, operator, standard equipment, rated capacity of lubricant, hydraulic control unit, coolant, and full fuel tank.: 31,438 lbs.
Features
Features
Rollers and idlers: Lubricated track rollers | Sealed and lubricated track: Track tension easily adjusted w/grease gun | Number of track rollers (each side): 7 | Type of shoes (standard): Single grouser | Number of shoes (each side): 44