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Excavators

PC45MR-5

Small excavators

  • Horsepower (HP) 38 HP @ 2,400 rpm
  • Horsepower (kW) 28.3 kW @ 2 400 rpm
  • Operating weight (kg) 4 870 - 4 990
  • Operating weight (lbs) 10,737 - 11,001
  • Bucket Capacity (m^3) 0.055 - 0.16
  • Bucket Capacity (yd^3) 0.07 - 0.21

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Komatsu's compact excavators now with 0% financing for up to 48 months

Performance and versatility in a compact hydraulic excavator
Models include: PC30MR-5 E1/PC35MR-5 E1/PC45MR-5/PC55MR-5

Power, precision, and comfort

Komatsu small excavators feature advanced technology for maximum efficiency, improved productivity, lower fuel consumption. They offer reliable performance, excellent forward visibility, and a comfortable operator workspace. Experience power, precision, and comfort with this model.


    Specifications

    Metric Imperial (US)
    Expand all

    • HydrauMind Type: HydrauMind (Hydraulic Mechanical Intelligence New Design) system
    • Number of selectable working modes: 2
    • Main pump

      • Pumps for: Swing and blade
      • Variable Type: Variable displacement, axial piston
      • Maximum flow (US gpm): 40.1
      • Maximum flow (L/min): 153.3
      • Swing pump maximum flow (gpm): 16.6
      • Swing pump maximum flow (L/min): 63
      • Gear Type: Fixed displacement gear
      • Main pumps for: Boom, arm, bucket, and travel circuits
    • Relief valve setting

      • Implement circuits (psi): 3,844
      • Travel circuit (psi): 3,844
      • Swing circuit (psi): 3,133
      • Implement circuits (MPa): 26.5
      • Pilot circuit (psi): 455
      • Implement circuits (kgf/cm^2): 270
      • Blade circuit (psi): 3,133
      • Blade circuit (kgf/cm^2): 220
      • Blade circuit (MPa): 21.6
      • Pilot circuit (kgf/cm^2): 32
      • Pilot circuit (MPa): 3.14
      • Swing circuit (kgf/cm^2): 220
      • Swing circuit (MPa): 21.6
      • Travel circuit (kgf/cm^2): 270
      • Travel circuit (MPa): 26.5
    • Hydraulic cylinders

      • Boom (Number of cylinders – bore x stroke x rod diameter)(mm): 90 x 691 x 50
      • Boom (Number of cylinders – bore x stroke x rod diameter)(in): 3.54 x 27.2 x 1.97
      • Arm (Number of cylinders – bore x stroke x rod diameter)(mm): 80 x 649 x 50
      • Arm (Number of cylinders – bore x stroke x rod diameter)(in): 3.14 x 25.6 x 1.97
      • Bucket (Number of cylinders – bore x stroke x rod diameter)(mm): 70 x 580 x 45
      • Bucket (Number of cylinders – bore x stroke x rod diameter)(in): 2.76 x 22.8 x 1.77
      • Blade (1)(in): 4.33 x 5.5 x 1.97
      • Blade (1)(mm): 110 x 140 x 50
      • Boom swing (1)(mm): 90 x 630 x 50
      • Boom swing (1)(in): 3.54 x 24.8 x 1.97
    • Hydraulic motors

      • Travel: 2 x axial piston motor with parking brake
      • Swing: 1 x axial piston motor with swing holding brake

    • Drive method type: Hydrostatic
    • Maximum drawbar pull (kgf): 4 280
    • Maximum drawbar pull (lbs): 9,436
    • Service brake type: Hydraulic lock
    • Parking brake: Mechanical brake
    • Gradeability: 30°
    • Maximum travel speed

      • High (mph): 2.9
      • High (kph): 4.6
      • Low (kph): 2.6
      • Low (mph): 1.6

    • Swing reduction: Planetary gear
    • Holding brake/Swing lock: Mechanical disc brake
    • Swing speed (rpm): 9

    • Operating weight features (ft): Operating weight including 8 ft. 8 in one-piece boom, 5 ft. 7 in arm, SAE heaped 0.18 yd3 bucket, blade, rated capacity of lubricants, coolant, full fuel tank, operator, and standard equipment.
    • Operating weight features (mm): Operating weight including 2 640 mm one-piece boom, 1 695 mm arm, SAE heaped 0.14 m3 bucket, blade, rated capacity of lubricants, coolant, full fuel tank, operator, and standard equipment.
    • Shoes size (in): 16
    • Shoes size (mm): 400
    • ROPS cab, rubber shoe

      • Ground pressure ISO 16754 with ROPS cab, rubber shoe (kg/cm^2): 0.29
      • Ground pressure ISO 16754 with ROPS cab, rubber shoe (psi): 4.12
      • Ground pressure ISO 16754 with ROPS cab, rubber shoe (kPa): 28
      • Operating weight with ROPS cab, rubber shoe (lbs): 11,001
      • Operating weight with ROPS cab, rubber shoe (kg): 4 990
    • ROPS canopy, rubber shoe

      • Ground pressure with ROPS canopy, rubber shoe (psi): 3.98
      • Ground pressure ISO 16754 with ROPS canopy, rubber shoe (kg/cm^2): 0.28
      • Ground pressure ISO 16754 with ROPS canopy, rubber shoe (kPa): 27.4
      • Operating weight with ROPS canopy, rubber shoe (lbs): 10,737
      • Operating weight with ROPS canopy, rubber shoe (kg): 4 870

    • Engine Model: Komatsu 4D88E-7*
    • Cooling Type: Water-cooled, 4-cycle, direct injection, cooled EGR
    • Aspiration: Naturally aspirated
    • Number of cylinders: 4
    • Bore (mm): 88
    • Bore (in): 3.46
    • Stroke (in): 3.54
    • Stroke (mm): 90
    • Piston displacement (L): 2.19
    • Piston displacement (in^3): 134
    • Engine Rated (rpm): 2,400
    • Governor: All-speed control, electronic
    • Fan drive method for radiator cooling: Mechanical
    • Horsepower

      • SAEJ1995 - Gross (HP): 39
      • SAEJ1995 - Gross (kW): 29.1
      • ISO 9249 / SAE J1349 - Net (HP): 38
      • ISO 9249 / SAE J1349 - Net (kW): 28.3

    • Fuel tank (US gal): 17.2
    • Coolant (US gal): 2.4
    • Engine (US gal): 2.2 (2.0)
    • Final drive (US gal): 0.2
    • Hydraulic tank (US gal): 14.5 (5.3)
    • Hydraulic tank (L): 55 (20)
    • Coolant (L): 8.9
    • Fuel tank (L): 65
    • Engine (L): 8.1 (7.5)
    • Final drive (L): 0.7

    • Center frame: X-frame
    • Track frame: Box-section
    • Track adjuster: Hydraulic
    • Number of shoes (each side): 39
    • Number of carrier rollers (each side): 1
    • Number of track rollers (each side): 4
    • Seal of track: Sealed
    Metric Imperial (US)
    Engine
    • Air cleaner, double element with auto dust evacuator
    • Cooling fan, suction type
    • Side by side cooling package
    Electrical system
    • Alternator, 12 V/55 A
    • Auto deceleration
    • Battery, 1 x 12 V/72 Ah
    • Starting motor 12 V/2.3 kW
    • Working light on boom
    • Working light on Cab or canopy
    Hydraulic system
    • Auxiliary hydraulics with selector valve
    Guards and covers
    • Fan guard structure
    • Thermal guard
    Undercarriage
    • Shoe, 16" rubber shoe
    Operator environment
    • 12 V x 1 power supply
    • Automatic two-speed travel control
    • Foot operated auxiliary control
    • Foot operated swing boom control
    • Lock lever auto lock function
    • Monitor panel, 3.5" color display
    • Operator identification function
    • Rear view mirrors (RH, LH, rear)
    • Seat belt, 3" retractable
    • Suspension seat (mid height)
    • Travel alarm
    • Travel lamp
    • Two-post ROPS canopy
    Work equipment
    • Arm - 5'7" arm assembly with piping
    • Backfill blade
    • Boom - 8'8" boom assembly with piping
    Other equipment
    • Auto idle shutdown
    • KOMTRAX® Level 5 - cellular based
    • Swing holding brake
    Engine
    • Air cleaner, double element with auto dust evacuator
    • Cooling fan, suction type
    • Side by side cooling package
    Elecrical system
    • Alternator, 12 V/55 A
    • Auto deceleration
    • Battery, 1 x 12 V/72 Ah
    • Starting motor 12 V/2.3 kW
    • Working light on boom
    • Working light on Cab or canopy
    Hydraulic system
    • Auxiliary hydraulics with selector valve
    Guards and covers
    • Fan guard structure
    • Thermal guard
    Undercarriage
    • Shoe, 400 mm rubber shoe
    Operator environment
    • 12 V x 1 power supply
    • Automatic two-speed travel control
    • Foot operated auxiliary control
    • Foot operated swing boom control
    • Lock lever auto lock function
    • Monitor panel, 3.5" color display
    • Operator identification function
    • Rear view mirrors (RH, LH, rear)
    • Seat belt, 76 mm retractable
    • Suspension seat (mid height)
    • Travel alarm
    • Travel lamp
    • Two-post ROPS canopy
    Work equipment
    • Arm - 1695 mm arm assembly with piping
    • Backfill blade
    • Boom - 2640 mm boom assembly with piping
    Other equipment
    • Auto idle shutdown
    • KOMTRAX® Level 5 - cellular based
    • Swing holding brake
    Metric Imperial (US)

    Undercarriage

    • Road Liner track (16")
    • Steel track (16")

    Operator environment

    • Cab with hinged door, air conditioner, radio ready, auxiliary input (3.5 mm jack) ready
    • Proportional Control Joysticks

    Work equipment

    • Angle dozer blade
    • Wide variety of attachments

    Undercarriage

    • Road Liner track (400 mm)
    • Steel track (400 mm)

    Operator environment

    • Cab with hinged door, air conditioner, radio ready, auxiliary input (3.5 mm jack) ready
    • Proportional Control Joysticks

    Work equipment

    • Angle dozer blade
    • Wide variety of attachments