Komatsu D61PXi-24 MID-SIZE DOZERS
Product Feature
Cab Top GNSS Antenna
No blade mounted GNSS antenna(s), cables to worry about damaging with cab top GNSS antenna. Reduced risk of theft due to low visibility as viewed from ground level.
Comfortable Ride with Heated Operator Seat
The operator seat has adjustable lumbar support, tilt and an electric heater. It is easy to adjust to the operator's shape. Also, the standard seat heat makes it possible to work comfortably in the winter.
Easy Maintenance
Planned maintenance and daily checks are the only way to ensure long service life from equipment. That’s why Komatsu designed the D61EX/PX-24 with conveniently located maintenance points to make necessary inspec-tions and maintenance quick and easy.
Electronic Controlled Hydraulic System
The electronic controlled, palm commanded joystick provides precise blade control. New blade angling switch operation provides easier and predictable blade control.
Fuel Efficiency
The HST control system can reduce fuel consumption.
Heavy-Duty Aftertreatment System
This new system combines a Komatsu Diesel Particulate Filter (KDPF) and Selective Catalytic Reduction (SCR). The SCR NOx reduction system injects the correct amount of DEF at the proper rate, transforming NOx into non-toxic water (H2O) and nitrogen gas (N2).
Heavy-Duty Cooled Exhaust Gas Recirculation (EGR) System
The system recirculates a portion of exhaust gas into the air intake and lowers combustion temperatures, thereby reducing NOx emissions. EGR gas flow has been decreased for Tier 4 Final with the addition of SCR technology. The system achieves a dynamic reduction of NOx, while helping reduce fuel consumption below Tier 4 Interim levels.
Heavy-Duty High-Pressure Common Rail (HPCR) Fuel Injection System
The system is designed to achieve an optimal injection of high-pressure fuel by means of computerized control, providing close-to- complete combustion to reduce PM emissions. The system uses high pressure injection, thereby reducing both PM emissions and fuel consumption over the entire range of engine operating conditions. The Tier 4 Final engine has advanced fuel injection timing for reduced fuel consumption and lower soot levels.
Komatsu Auto Idle Shutdown
Komatsu auto idle shutdown automatically shuts the engine down after idling for a set period of time to reduce unnecessary fuel consumption and exhaust emissions. The amount of time before the engine is shutdown can be easily programmed from 5 to 60 minutes.
Komatsu Variable Geometry Turbocharger (KVGT) system
The KVGT system features proven Komatsu design hydraulic technology for variable control of air-flow and supplies optimal air according to load conditions. It provides better exhaust temperature management. The Tier 4 final version has an improved propeller design for increased performance.
Multi-Monitor with Troubleshooting Function to Minimize Down Time
Various meters, gauges and warning functions are centrally arranged on the multi-monitor. The monitor simplifies start-up inspection and promptly warns the operator with a lamp and buzzer if any abnormalities occur. In addition, countermeasures are indicated in 4 levels to help prevent major machine problems. Replacement times for required PM services are also indicated.
Parallel Link Undercarriage System (PLUS)
Komatsu's new PLUS provides less downtime, plus longer wear with up to 40% lower undercarriage maintenance costs. Rotating bushings eliminate the cost and downtime for bushing turns, and strengthened rollers and links increase wear life up to two times. With PLUS, individual links can be replaced with common track tools.
PAT Dozer with Adjustable Pitch
A power angle power tilt dozer blade with adjustable blade pitch system is available. This blade is available for the D61EXi/PXi-24 machines. The hydraulic blade tilt, angling function (and manually adjustable blade pitch) expand versatility and productivity in a variety of applications.
PCCS
The low-effort PCCS joystick controls all directional movements, including machine travel speed as well as counter-rotation.
Rear view monitor system
On the large LCD color monitor, the operator can view, through one camera, areas directly behind the machine. This camera can be synchronized with reverse operation.
Selectable Working Mode
P mode is the mode designed for powerful operation and maximum production. E mode is designed for general dozing applications providing adequate speed and power while saving energy. For fuel reduction and energy saving, the monitor panel allows the operator to easily switch the working mode, depending on the work at hand.
Stroke Sensing Hydraulic Cylinders
Robust stroke sensing hydraulic cylinders employ proven Komatsu sensor technologies for accurate finish grade performance. Stroke sensing angle cylinder allows machine control system to know the angle of the blade.
Unrivaled Blade Visibility
The D61EXi/PXi-24 incorporates Komatsu's super-slant nose design. Komatsu's innovative design provides excellent blade visibility for improved machine control and increased efficiency and productivity.
Engine
Model | |
Komatsu SAA6D107E-3* |
Type | |
4-cycle, water-cooled, direct injection |
Aspiration | |
Komatsu Variable Geometry Turbocharged, air-to-air aftercooled, cooled EGR |
Number of cylinders | |
6 |
Bore x stroke | 107 mm x 124 mm | 4.21" x 4.88" |
Piston displacement | 6.69 ltr | 408 in³ |
Governor | |
All-speed and mid-range, electronic |
Horsepower: | |
|
SAE J1995 - Gross | 127 kW | 170 HP |
ISO 9249 / SAE J1349 - Net | 125 kW | 168 HP |
Rated rpm | |
2200 rpm |
Fan drive type | |
Hydraulic |
Lubrication system: | |
|
Method | |
Gear pump, force lubricationn |
Filter | |
Full-flow |
*EPA Tier 4 Final emissions certified |
Final Drive
In-shoe mounted axial piston type travel motors with integrated two-stage planetary gear reduction. Compact in-shoe mount reduces risk of damaged by debris. Bolt-on sprocket for easy displacement.
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
171 ltr/min / 45 U.S. gal/min at rated engine rpm.
Hydrostatic Transmission
Dual-path, hydrostatic transmission provides infinite speed changes up to 9.0 km/h 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.
Operating Weight (APROXIMATE)
Tractor weight: | |
Including ROPS cab, U frame for power angle tilt dozer, rated capacity of lubricant, coolant, full fuel tank, operator, and standard equipment. |
D61PXi-24 | 18440 kg | 40,653 lb |
Operating weight: | |
Including Power Angle Tilt dozer, ROPS cab, operator, standard equipment, rated capacity of lubricant, hydraulic control unit, coolant, and full fuel tank. |
D61PXi-24 | 19580 kg | 43,167 lb |
Service Refill Capacities
Coolant | 45 ltr | 11.9 U.S. gal |
Fuel tank | 372 ltr | 98.3 U.S. gal |
Engine oil | 27 ltr | 7.2 U.S. gal |
Hydraulic tank | 101 ltr | 26.7 U.S. gal |
Final drive (each side) | 8.1 ltr | 2.2 U.S. gal |
DEF tank |
20.6 ltr |
5.4 U.S. gal |
Steering System
PCCS joystick control for all directional movements. Pushing the joystick forward results in forward machine travel, while pulling it backward 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. HST eliminates steering clutches and brakes, providing smooth powerful turns. Fully electronic control enables smooth control. The PCCS utilizes shift buttons to increase and decrease speed.
Product Parameter
Model | |
Komatsu SAA6D107E-3* |
Type | |
4-cycle, water-cooled, direct injection |
Aspiration | |
Komatsu Variable Geometry Turbocharged, air-to-air aftercooled, cooled EGR |
Number of cylinders | |
6 |
Bore x stroke | 107 mm x 124 mm | 4.21" x 4.88" |
Piston displacement | 6.69 ltr | 408 in³ |
Governor | |
All-speed and mid-range, electronic |
Horsepower: | |
|
SAE J1995 - Gross | 127 kW | 170 HP |
ISO 9249 / SAE J1349 - Net | 125 kW | 168 HP |
Rated rpm | |
2200 rpm |
Fan drive type | |
Hydraulic |
Lubrication system: | |
|
Method | |
Gear pump, force lubricationn |
Filter | |
Full-flow |
*EPA Tier 4 Final emissions certified |
Relief valve setting | 27.4MPa 280 kg/cm² |
3,974 psi |
Hydraulic cylinders | |
Double-acting, piston type |
Hydraulic cylinders: | Number of cylinders | Bore |
Blade lift | 2 | 100 mm 4" |
Blade tilt | 1 | 120 mm 5" |
Blade angle | 2 | 110 mm 4" |
Hydraulic oil capacity (refilling): | |
|
Power angle tilt dozer | 101 ltr | 26.7 U.S. 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 |
Travel speed (quick shift mode)* | Forward | Reverse |
1st | 0-3.4 km/h 0-2.1 mph |
0-4.1 km/h 0-2.5 mph |
2nd | 0-5.6 km/h 0-3.5 mph |
0-6.5 km/h 0-4.0 mph |
3rd | 0-9.0 km/h 0-5.6 mph |
0-9.0 km/h 0-5.6 mph |
Travel speed (variable mode) | 0-9.0 km/h 0-5.6 mph |
0-9.0 km/h 0-5.6 mph |
*Quick shift speeds are adjustable in the monitor. |
Tractor weight: | |
Including ROPS cab, U frame for power angle tilt dozer, rated capacity of lubricant, coolant, full fuel tank, operator, and standard equipment. |
D61PXi-24 | 18440 kg | 40,653 lb |
Operating weight: | |
Including Power Angle Tilt dozer, ROPS cab, operator, standard equipment, rated capacity of lubricant, hydraulic control unit, coolant, and full fuel tank. |
D61PXi-24 | 19580 kg | 43,167 lb |
Coolant | 45 ltr | 11.9 U.S. gal |
Fuel tank | 372 ltr | 98.3 U.S. gal |
Engine oil | 27 ltr | 7.2 U.S. gal |
Hydraulic tank | 101 ltr | 26.7 U.S. gal |
Final drive (each side) | 8.1 ltr | 2.2 U.S. gal |
DEF tank |
20.6 ltr |
5.4 U.S. gal |
Minimum turning radius |
2.3 m | 91" |
Suspension | |
Oscillating-type with equalizer bar and pivot shafts |
Track roller frame | |
Monocoque, large section, durable construction |
Rollers and idlers | |
Lubricated track rollers |
Lubricated tracks | Parallel Link Undercarriage System (PLUS) with lubricated rotating bushings for extended system wear life and lower maintenance costs. | Track tension is easily adjusted with grease gun. |
Number of track rollers (each side) | |
8 |
Type of shoes (standard) | |
Single grouser |
Number of shoes (each side) | |
46 |
Grouser height | 57.5 mm | 2.3" |
Shoe width (standard) | 860 mm | 34" |
Ground contact area | 54440 cm² | 8,438 in² |
Ground pressure (with dozer, ROPS canopy): |
35.0 kPa 0.36 kgf/cm² |
5.12psi |
Track gauge | 2130 mm | 7'0" |
Length of track on ground | 3165 mm | 10'4" |