Small excavator

PC30MR-5

  • Horsepower 18.2 kW @ 2 200 rpm 24.4 HP @ 2,200 rpm
  • Operating weight 3 090 - 3 240 kg 6,812 - 7,143 lbs.
  • Bucket capacity 0.055 - 0.16 m³ 0.07 - 0.21 yd³

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/PC35MR-5/PC45MR-5/PC55MR-5

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Specifications for PC30MR-5

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US system Metric
Engine
Model Komatsu 3D88E-7*
Type Water-cooled, direct injection
Number of cylinders 3
Bore 88 mm
Stroke 90 mm
Piston displacement 1.642 L
Horsepower:
SAE J1995 - Gross 18.2 kW
ISO 9249 / SAE J1349 - Net 18.2 kW
Rated rpm
2 200
Fan drive method for radiator cooling Mechanical

*EPA Tier 4 Final emissions certified

Model Komatsu 3D88E-7*
Type Water-cooled, direct injection
Number of cylinders 3
Bore 3.46 in
Stroke 3.54 in
Piston displacement 100.2 in³
Horsepower:
SAE J1995 - Gross 24.4 HP
ISO 9249 / SAE J1349 - Net 24.4 HP
Rated rpm
2,200
Fan drive method for radiator cooling Mechanical

*EPA Tier 4 Final emissions certified

Hydraulics
Number of selectable
working modes
2
Main pumps:  
Pumps for Boom, arm, bucket, and travel circuits
Type Variable displacement piston x 2
Maximum flow 32 L/min
Pumps for Swing and blade
Type Gear x 2
Swing pump maximum flow 18.7 L/min
Swing pressure maximum 20.1 MPa
Blade pump maximum flow 9.9 L/min
Blade pressure maximum 21.5 MPa
Max auxiliary flow rate
at 20.5 MPa / 2 973 psi
50 L/min
Hydraulic valve 8 spool
Operating method Hydraulic assist
Travel motor:  
Type Variable displacement piston x 2
(with counterbalance valve and travel shaft brake)
Swing motor:  
Type Fixed displacement piston type x 1
(with brake valve and swing shaft brake)
Hydraulic cylinders:
(number of cylinders)
bore x stroke x rod diameter
Boom (1) 85 x 525 x 50 mm
Arm (1) 75 x 595 x 45 mm
Bucket (1) 65 x 490 x 40 mm
Boom swing (1) 80 x 500 x 40 mm
Blade (1) 95 x 135 x 45 mm
Number of selectable
working modes
2
Main pumps:  
Pumps for Boom, arm, bucket, and travel circuits
Type Variable displacement piston x 2
Maximum flow 18.3 gpm
Pumps for Swing and blade
Type Gear x 2
Swing pump maximum flow 4.9 gpm
Swing pressure maximum 2,915 psi
Blade pump maximum flow 2.61 gpm
Blade pressure maximum 3,118 psi
Max auxiliary flow rate
at 20.5 MPa / 2,973 psi
13.2 gpm
Hydraulic valve 8 spool
Operating method Hydraulic assist
Travel motor:  
Type Variable displacement piston x 2
(with counterbalance valve and travel shaft brake)
Swing motor:  
Type Fixed displacement piston type x 1
(with brake valve and swing shaft brake)
Hydraulic cylinders:
(number of cylinders)
bore x stroke x rod diameter
Boom (1) 3.35 x 20.7 x 1.97 in
Arm (1) 2.9 x 23.4 x 1.77 in
Bucket (1) 2.55 x 19.29 x 1.57 in
Boom swing (1) 3.14 x 19.6 x 1.57 in
Blade (1) 3.34 x 5.11 x 1.77 in
Drives and brakes
Steering control
Two levers with pedals
Drive method Hydrostatic
Gradeability 30°
Maximum travel speed (rubber):
(Auto-shift)

High 4.6 kph
Low 2.6 kph
Service brake Hydraulic lock
Parking brake Mechanical disc
Maximum drawbar pull 33 kN 3400 kgf
Steering control
Two levers with pedals
Drive method Hydrostatic
Gradeability 30°
Maximum travel speed (rubber):
(Auto-shift)

High 2.85 mph
Low 1.61 mph
Service brake Hydraulic lock
Parking brake Mechanical disc
Maximum drawbar pull 7,495 lbf.
Undercarriage
Center frame X-frame
Track frame Box-section
Track type Sealed
Track adjuster Greased gun
Number of carrier rollers (each side) 1
Number of track rollers (each side) 4
Center frame X-frame
Track frame Box-section
Track type Sealed
Track adjuster Greased gun
Number of carrier rollers (each side) 1
Number of track rollers (each side) 4
Coolant and lubricant capacity (refilling)
Engine 6.7 L
Hydraulic system 20 L
Cooling system 3.3 L
Fuel tank 41 L
Final drive (each side) 0.6 L
Engine 1.77 US gal
Hydraulic system 5.3 US gal
Cooling system 0.87 US gal
Fuel tank 10.8 US gal
Final drive (each side) 0.15 US gal
Operating weight (approximate)
ROPS canopy, rubber belt track 300 mm  
Operating Weight 3,090 kg
Ground pressure ISO 16754 26.7 kPa
ROPS cab, rubber belt track 300 mm  
Operating Weight 3,240 kg
GGround pressure ISO 16754 29.3 kPa
ROPS canopy, rubber belt track 12”  
Operating Weight 6,812 lbs.
Ground pressure ISO 16754 3.87 psi
ROPS cab, rubber belt track 12”  
Operating Weight 7,143 lbs.
GGround pressure ISO 16754 4.25 psi
Blade
Width x height 1 550 x 355 mm
Width x height 5 ft. 1 in x 1 ft. 2 in

ENGINE

  • Air cleaner, double element with auto dust evacuator
  • Cooling fan, suction type

ELECTRICAL SYSTEM

  • Alternator, 12 V/55 A
  • Auto-decelerator
  • Battery, 1 x 12 V/58 Ah
  • Front travel light
  • Starting motor 12 V/1.7 kW
  • Working light on boom

HYDRAULIC SYSTEM

  • Auxiliary hydraulics with one-way/two-way flow selector valve
  • Foot control for auxiliary hydraulics
  • ISO/SAE pattern change valve

GUARDS AND COVERS

  • Fan guard
  • Thermal guard

UNDERCARRIAGE

  • Shoe, 300 mm rubber shoe

OPERATOR ENVIRONMENT

  • 12 V x 1 power supply
  • Automatic two-speed travel control
  • High resolution 3.5” LCD color monitor
  • Lock lever auto lock function
  • Rear view mirrors (RH, LH) 
  • Retractable seat belt, 78 mm
  • Suspension seat
  • Travel alarm
  • Two-post ROPS (ISO 3471) canopy

WORK EQUIPMENT

  • Arms — 1240 mm arm assembly with piping
  • Backfill blade
  • Booms — 2285 mm boom assembly with piping

OTHER EQUIPMENT

  • Auto idle shutdown
  • KOMTRAX®
  • Quick release buttery terminal (-)
  • Swing holding brake
  • Counterweight — 260 kg

ENGINE

  • Air cleaner, double element with auto dust evacuator
  • Cooling fan, suction type

ELECTRICAL SYSTEM

  • Alternator, 12 V/55 A
  • Auto-decelerator
  • Battery, 1 x 12 V/58 Ah
  • Front travel light
  • Starting motor 12 V/1.7 kW
  • Working light on boom

HYDRAULIC SYSTEM

  • Auxiliary hydraulics with one-way/two-way flow selector valve
  • Foot control for auxiliary hydraulics
  • ISO/SAE pattern change valve

GUARDS AND COVERS

  • Fan guard
  • Thermal guard

UNDERCARRIAGE

  • Shoe, 12" rubber shoe

OPERATOR ENVIRONMENT

  • 12 V x 1 power supply
  • Automatic two-speed travel control
  • High resolution 3.5” LCD color monitor
  • Lock lever auto lock function
  • Rear view mirrors (RH, LH) 
  • Retractable seat belt, 3"
  • Suspension seat
  • Travel alarm
  • Two-post ROPS (ISO 3471) canopy

WORK EQUIPMENT

  • Arms — 48.8" arm assembly with piping
  • Backfill blade
  • Booms — 90" boom assembly with piping

OTHER EQUIPMENT

  • Auto idle shutdown
  • KOMTRAX®
  • Quick release buttery terminal (-)
  • Swing holding brake
  • Counterweight — 518 lb 

UNDERCARRIAGE

  • Road Liner track, 300 mm

OPERATOR ENVIRONMENT

  • Cab with A/C, radio ready, auxiliary input (3.5 mm jack) read
  • Proportional joysticks

WORK EQUIPMENT

  • Buckets
    — 300 mm
    HD bucket
    — 457 mm
    HD bucket

    — 610 mm
    HD bucket
  • Hydraulic thumb
  • Mechanical quick coupler

UNDERCARRIAGE

  • Road Liner track, 12"

OPERATOR ENVIRONMENT

  • Cab with A/C, radio ready, auxiliary input (3.5 mm jack) read
  • Proportional joysticks

WORK EQUIPMENT

  • Buckets
    — 12" HD bucket
    — 18" HD bucket
    — 24" HD bucket
  • Hydraulic thumb
  • Mechanical quick coupler
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