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Dozers

D61PXi-24

Mid-size dozers

  • Horsepower (HP) 168 HP @ 2,200 rpm
  • Horsepower (kW) 125 kW @ 2 200 rpm
  • Operating weight (kg) 19 580
  • Operating weight (lbs) 43,167
  • Blade capacity (m^3) 3.81
  • Blade capacity (yd^3) 4.98

Purchase options

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A workhorse for your fleet

Every dozer fleet is built on the workhorses … versatile, powerful machines you rely on day after day, year after year. This dozer was designed from the ground up to fill that role. The Tier 4 Final engine and electronically controlled hydrostatic transmission keep fuel use remarkably low without sacrificing power. A standard parallel link undercarriage system features rotary bushings engineered to extend wear life and lower repair/maintenance costs. In addition to economy and power modes, a high engine rpm H mode helps operators maintain ground speed while operating under heavy loads.

  • Get new operators up to speed quickly
  • Go from mass ex to finished grading faster than ever
  • Fully integrate 3D design data into your machines
  • Empower operators to work efficiently, pass after pass

Features and benefits

Learns as it works

Learns as it works

With proactive dozing control, even your less experienced operators can automatically cut/strip from existing terrain. The dozer measures the terrain it tracks over and uses that data to plan the next pass. Can improve productivity by up to 60% versus previous generation.

Spreads fill material automatically

Spreads fill material automatically

Lift layer control automatically lets your operators spread fill from existing terrain with the press of a button. The dozer measures the terrain it tracks over and uses the data it gathers to plan the next pass. Attain up to double your production and achieve consistent layers for compaction quality.

Levels material even during rough dozing

Levels material even during rough dozing

Tilt steering control automatically tilts the blade to maintain straight travel during rough dozing. Reduces operator steering input by up to 80%.

Quick surface creation

Quick surface creation

Operators can create a temporary design surface with the press of a button. Combined with other IMC 2.0 functions, your crew can begin stripping or spreading using automated input while waiting for the finish grade model.

Close the operator skill gap

Close the operator skill gap

Machine logic allows the dozer to continuously learn the terrain and make calculated decisions for the next pass. Intelligent Machine Control helps lessen the skill gap between new and experienced operators.

Advanced machine control

Advanced machine control

In select situations — auto stripping, rough dozing, spreading, advanced finish grading — operators can opt for nearly 100% machine control auto usage. They can even apply automatic control without having a 3D model.

A machine that learns from the operator

A machine that learns from the operator

Automatic functions give the dozer the ability to learn from operator's blade input, resulting in more adaptability, easier operation and less reliance on operator input.

Outstanding blade response for finish grading

Outstanding blade response for finish grading

To deliver unparalleled grading performance, IMC enables the dozer to look ahead at grade transitions and alter the blade angle accordingly.


Specifications

Metric Imperial (US)
Expand all

  • Suspension: Oscillating-type with equalizer bar and pivot shafts
  • Track roller frame: Monocoque, large section, durable construction
  • Rollers and idlers: Lubricated track rollers
  • Type of shoes (standard): Single grouser
  • Number of track rollers (each side): 8
  • Number of shoes (each side): 46
  • 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.
  • Grouser height (in): 2.3
  • Grouser height (mm): 57.5
  • Shoe width (standard)(mm): 860
  • Shoe width (standard)(in): 34
  • Ground contact area (cm^2): 54 440
  • Ground contact area (ft2): 58.6
  • Ground pressure (with standard shoe)(ISO 16754)(psi): 4.61
  • Ground pressure (with standard shoe)(ISO 16754)(kg/cm^2): 0.32
  • Ground pressure (with standard shoe)(ISO 16754)(kpa): 31.78
  • Track gauge (mm): 2 130
  • Track gauge (ft): 7 ft. 0 in
  • Length of track on ground (mm): 3 165
  • Length of track on ground (ft): 10 ft. 5 in

  • Hydrostatic transmission features: 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.
  • Reverse

    • 1st reverse (kph): 0 - 4.1
    • 1st reverse (mph): 0 - 2.5
    • 2nd reverse (mph): 0 - 4.0
    • 2nd reverse (kph): 0 - 6.5
    • 3rd reverse (kph): 0 - 9.0
    • 3rd reverse (mph): 0 - 5.6
    • Travel speed reverse (variable mode) (kph): 0 - 9.0
    • Travel speed reverse (variable mode) (mph): 0 - 5.6
  • Forward

    • 1st forward (kph): 0 - 3.4
    • 1st forward (mph): 0 - 2.1
    • 2nd forward (kph): 0 - 5.6
    • 2nd forward (mph): 0 - 3.5
    • 3rd forward (kph): 0 - 9.0
    • 3rd forward (mph): 0 - 5.6
    • Travel speed forward (variable mode) (kph): 0 - 9.0
    • Travel speed forward (variable mode) (mph): 0 - 5.6

  • Hydraulic system features: Closed-Center Load Sensing System (CLSS) designed for precise and responsive control, and for efficient simultaneous operation.
  • Hydraulic control unit (ltr/min): 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.
  • Hydraulic control unit (U.S. gal/min): All spool control valves externally mounted remote to the hydraulic tank. Piston-type hydraulic pump with capacity (discharge flow) of 171 L/min / 45 US gpm at rated engine rpm.
  • Relief valve setting (psi): 3,974
  • Relief valve setting (kg/cm^2): 280
  • Relief valve setting (MPa): 27.4
  • Control valve: 3-spool control valve for power angle tilt dozer
  • Hydraulic oil capacity (refill)

    • Power angle tilt dozer (US gal): 26.7
    • Power angle tilt dozer (L): 101
  • Number of cylinders

    • Blade tilt /1 (in): 5
    • Blade tilt /1 (mm): 120
    • Blade lift / 2 (in): 4
    • Blade lift / 2 (mm): 100
    • Blade angle / 2 (in): 4
    • Blade angle / 2 (mm): 100
    • Positions

      • Blade lift: Raise, hold, lower, and float
      • Blade tilt: Right, hold, and left
      • Blade angle: Right, hold, and left
      • Ripper lift: Raise, hold and lower
  • Hydraulic cylinders

    • Hydraulic cylinders: Double-acting, piston type

  • Engine Model: Komatsu SAA6D107E-3*
  • Dozers 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 (in): 4.21 x 4.88
  • Bore x stroke (mm): 107 x 124
  • Piston displacement (L): 6.69
  • Piston displacement (in^3): 408
  • Governor: All-speed and mid-range, electronic
  • Footnote: *EPA Tier 4 Final emissions certified
  • Horsepower

    • SAEJ1995 - Gross (kW): 127
    • SAEJ1995 - Gross (HP): 170
    • ISO 9249 / SAE J1349 - Net (HP): 168
    • ISO 9249 / SAE J1349 - Gross (kW): 125
    • Rated RPM: 2,200
    • Fan drive type: Hydraulic
    • Hydraulic fan at maximum speed - net (kW): 113
    • Hydraulic fan at maximum speed - net (HP): 152
  • Lubrication system

    • Filter: Full-flow
    • Method: Gear pump, force lubrication

  • Fuel tank (US gal): 98.3
  • Fuel tank (L): 372
  • Diesel Exhaust Fluid (DEF) tank (L): 20.5
  • Diesel Exhaust Fluid (DEF) tank (US gal): 5.4
  • Coolant (US gal): 11.9
  • Coolant (L): 45
  • Engine oil (US gal): 7.2
  • Engine oil (L): 27
  • Final drive (L): 8.1
  • Final drive (US gal): 2.2
  • Hydraulic tank (L): 101
  • Hydraulic tank (US gal): 26.7

  • Operator weight (approximate): Operating weight: Including PAT dozer, ROPS (ISO 3471) cab, operator, standard equipment, rated capacity of lubricant, coolant and full fuel tank.
  • Tractor weight

    • Tractor weight (kg): 18 440
    • Tractor weight (lbs): 40,653
    • Tractor weight inclusions: Including ROPS (ISO 3471) cab, C frame for PAT dozer, rated capacity of lubricant, coolant, full fuel tank, operator and standard equipment.
  • Operating weight

    • Operating weight (lbs): 43,167
    • Operating weight (kg): 19 580

  • Steering system features: 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.
  • Minimum turning radius (in): 91
  • Minimum turning radius (m): 2.3

  • Final drive features: 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.
Metric Imperial (US)
  • Air cleaner, double element with dust indicator
  • Alternator, 90 ampere/24V
  • Backup alarm
  • Batteries, 200 Ah/2 x 12V
  • Battery disconnect switch
  • Blade lift cylinders
  • Color monitor, LCD
  • Curved exhaust pipe
  • Decelerator pedal (single pedal)
  • Engine hood
  • Engine intake centrifugal precleaner
  • Engine, swing open side cover
  • Engine shutdown secondary switch
  • Fluid sampling ports
  • Front pull hook
  • High mount foot rests
  • Horn, warning
  • Hydraulic driven radiator cooling fan with reverse clean mode
  • Hydraulics for rear equipment
  • intelligent Machine Control 2.0
  • KOMTRAX 
  • Komatsu Diesel Particulate Filter (KDPF)
  • Locks, filler caps and covers
  • Radiator mask, heavy-duty, swing up
  • Radiator reserve tank
  • Remote mounted equalizer bar greasing
  • ROPS Cab**
    • Air conditioner
    • Cab accessories
      • 12V power supply (2 ports)
      • Cup holder
      • Rearview mirror
      • Rear view monitoring (1 camera)
      • Bluetooth/USB compatible radio with remote AUX plug (3.5 mm)
      • 76 dBA
    • LED worklights
  • Seat, air suspension, fabric, heated low back, headrest
  • Seat belt, 76 mm 3", retractable
  • Seat belt indicator
  • Sealed electrical connectors
  • Side-by-side rear mounted cooling package
  • Starting motor, 5.5 kW/24V
  • Steering system, hydrostatic
  • Tie off points standard (ISO 14567)
  • Track roller guards, center and end sections
  • Track shoe assembly
    – Heavy-Duty lubricated rotary bushing (PLUS) track
    • 24" single grouser shoe (EX)
    • 34" single grouser shoe (PX)
  • Transmission with variable and customizable quickshift
  • Transmission, hydrostatic
  • Underguards, heavy duty
    • Engine
    • Transmission
  • Variable Geometry Turbocharger (VGT)
  • Water separator

* Dozer assembly and rear mounted equipment are not included in base machine standard equipment

** Cab meets ROPS and FOPS Level 2 standards

  • Air cleaner, double element with dust indicator
  • Alternator, 90 ampere/24V
  • Backup alarm
  • Batteries, 200 Ah/2 x 12V
  • Battery disconnect switch
  • Blade lift cylinders
  • Color monitor, LCD
  • Curved exhaust pipe
  • Decelerator pedal (single pedal)
  • Engine hood
  • Engine intake centrifugal precleaner
  • Engine, swing open side cover
  • Engine shutdown secondary switch
  • Fluid sampling ports
  • Front pull hook
  • High mount foot rests
  • Horn, warning
  • Hydraulic driven radiator cooling fan with reverse clean mode
  • Hydraulics for rear equipment
  • intelligent Machine Control 2.0
  • KOMTRAX 
  • Komatsu Diesel Particulate Filter (KDPF)
  • Locks, filler caps and covers
  • Radiator mask, heavy-duty, swing up
  • Radiator reserve tank
  • Remote mounted equalizer bar greasing
  • ROPS Cab**
    • Air conditioner
    • Cab accessories
      • 12V power supply (2 ports)
      • Cup holder
      • Rearview mirror
      • Rear view monitoring (1 camera)
      • Bluetooth/USB compatible radio with remote AUX plug (3.5 mm)
      • 76 dBA
    • LED worklights
  • Seat, air suspension, fabric, heated low back, headrest
  • Seat belt, 76 mm 3", retractable
  • Seat belt indicator
  • Sealed electrical connectors
  • Side-by-side rear mounted cooling package
  • Starting motor, 5.5 kW/24V
  • Steering system, hydrostatic
  • Tie off points standard (ISO 14567)
  • Track roller guards, center and end sections
  • Track shoe assembly
    – Heavy-Duty lubricated rotary bushing (PLUS) track
    • 610 mm single grouser shoe (EX)
    • 860 mm single grouser shoe (PX)
  • Transmission with variable and customizable quickshift
  • Transmission, hydrostatic
  • Underguards, heavy duty
    • Engine
    • Transmission
  • Variable Geometry Turbocharger (VGT)
  • Water separator

* Dozer assembly and rear mounted equipment are not included in base machine standard equipment

** Cab meets ROPS and FOPS Level 2 standards

Metric Imperial (US)
  • Dozer assembly
  • Drawbar, long type
  • Track roller guard, full length

Multi-shank ripper

  • Weight: 3,874 lb
  • Beam length: 7'1"
  • Maximum lift above ground: 1'8"
  • Maximum digging depth: 2'2"
  • Dozer assembly
  • Drawbar, long type
  • Track roller guard, full length

Multi-shank ripper

  • Weight: 1757 kg
  • Beam length: 2170 mm
  • Maximum lift above ground: 560 mm
  • Maximum digging depth: 665 mm

Technology

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Intelligent Machine Control

Productivity is the key to success on your job site, and the faster your crew can reach a state of maximum productivity, the better. Now you have a powerful tool to help make that happen with Komatsu’s Intelligent Machine Control (IMC). Incorporating a host of advanced, proprietary machine technology, IMC gives you the opportunity to take advantage of sophisticated, productivity-enhancing automation and cutting-edge job site design.

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Integrated machine control 100% of the time

The fully integrated dozing control system allows you to perform auto-stripping, auto-spreading and high production dozing, as well as finish grading.

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Smart Construction

Improve accuracy on your job site with Smart Construction — a suite of tech solutions that helps you optimize your operations.

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Infographic

D61PXi-14 Slant Nose Dozer Infographic D61PXi-24 Slant Nose Dozer Infographic

Komatsu Intelligent Machine Control 2.0

Introducing iMC 2.0, with new features like quick-design creation, tilt steering control and lift layer control that allows the operator to auto-spread in consistent layers for proper compaction and drying.

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