- Tail Swing Radius: 3.48 ft / 1060 mm
- Track Gauge: 5.12 ft / 1560 mm
- Bucket Offset Rh: 2.89 ft / 880 mm
- Crawler Length: 8.27 ft / 2520 mm
Published dimensions and weight
Komatsu PC55MR-3
The Komatsu PC55MR-3 is a mini excavator of about 5.2 t, built around the Komatsu 4D88E–6 engine.
01Published dimensions and weight
Dimensions reference
Measurement reference — not to scale
01Dimensions referenceLength × width × height
02Operating Weight11375.9 lb5160 kg
03Selected published values61
Mini excavators are commonly used for digging and utility work where access or working space is limited. Published rows for Komatsu PC55MR-3 include published operating weight of 11375.9 lb / 5160 kg, the published “Tail Swing Radius” field of 3.48 ft / 1060 mm, the published “Track Gauge” field of 5.12 ft / 1560 mm. These values describe the published configuration; verify the specific machine's configuration, attachments and records.
- Compare the published “Tail Swing Radius” field (3.48 ft / 1060 mm) with the specific machine's configuration and records; options and condition can differ.
- Compare the published “Track Gauge” field (5.12 ft / 1560 mm) with the specific machine's configuration and records; options and condition can differ.
- Compare the published “Bucket Offset Rh” field (2.89 ft / 880 mm) with the specific machine's configuration and records; options and condition can differ.
02Specifications
Published values, clearly grouped.
Published specifications and measurements are organized by section for quick reference.
Dimensions
Tail Swing Radius3.48 ft1060 mm
Track Gauge5.12 ft1560 mm
Bucket Offset Rh2.89 ft880 mm
Crawler Length8.27 ft2520 mm
Boom Swing Angle Lh85 degrees85 degrees
Boom Swing Angle Rh50 degrees50 degrees
Bucket Offset Lh2.07 ft630 mm
Overall Height8.37 ft2550 mm
Overall Width6.44 ft1960 mm
Overall Length18.21 ft5550 mm
Track Shoe Width1.32 ft400 mm
Undercarriage
Number Of Shoes Per Side39 (steel)39 (steel)
Number Of Carrier Rollers Per Side11
Adjustment Of The Track TensionGreaseGrease
Number Of Track Rollers Per Side44
Electrical System
Starter2.3 kW2.3 kW
Operation Voltage12 V12 V
Battery72 Ah72 Ah
Alternator40 A40 A
Engine
Flywheel Horsepower38.3 hp28.5 kw
Number Of Cylinders44
Piston Displacement133.6 cu in2.2 L
Engine ModelKomatsu 4D88E–6Komatsu 4D88E–6
Engine TypeDirect injectionDirect injection
Power Measured @2400 rpm2400 rpm
Fan Drive TypeMechanicalMechanical
Capacities
Fuel Tank17.2 gal65 L
Hydraulic Tank5.3 gal20 L
Engine Oil2 gal7.5 L
Coolant2.3 gal8.5 L
Operational
Boom Size9.6 ft2.9 m
Boom TypeStandardStandard
Arm Size5.4 ft1.7 m
Arm Crowd Force – Iso2440 kgf2440 kgf
Digging Reach – Maximum20.5 ft6220 mm
Maximum Reach @ Ground Level20 ft6070 mm
Bucket Crowd Force – Iso3980 kgf3980 kgf
Swing Radius3.5 ft1060 mm
Bucket Size – Kga Standard Gp0.2 yd30.2 m3
Digging Depth – Maximum12.5 ft3800 mm
Arm TypeStandardStandard
Performance
Travel Speed (Maximum)2.9 mph4.6 km/h
Travel Speed (Minimum)1.8 mph2.8 km/h
Swing Speed9 rpm9 rpm
Ground Pressure4.1 psi28.3 kPa
Max. Traction Force9435.8 lb4280 kg
Gradeability30 degrees30 degrees
Bucket Digging Force (Iso)8774.4 lb3980 kg
Arm Crowd Force (Iso)5379.3 lb2440 kg
Weights
Operating Weight11375.9 lb5160 kg
Hydraulic System
Type Of Hydraulic PumpVariable capacity x 2 gear x 1Variable capacity x 2 gear x 1
Max. Oil Flow53.5 x 2 + 33.8 14.1 x 2 + 8.953.5 x 2 + 33.8 14.1 x 2 + 8.9
Hydraulic Motor (Travel)Variable capacity x 2Variable capacity x 2
Hydraulic Motor (Swing)fixed capacity x 1fixed capacity x 1
Max. Pressure Setting3840 psi26475.9 kPa
Auxiliary Hydraulic Flow18.5 gal/min70 L/min
Blade
Blade Width6.5 ft1960 mm
Blade Height14 in355 mm
Drive System
Drive MethodHydrostaticHydrostatic
Type Of Travel BrakeHydraulic lock typeHydraulic lock type
Type Of Travel ShoeRubberRubber
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Manufacturer-published specifications.