- Tail Swing Radius: 2.65 ft / 805 mm
- Track Gauge: 3.94 ft / 1200 mm
- Bucket Offset Rh: 2.5 ft / 760 mm
- Crawler Length: 6.17 ft / 1880 mm
Published dimensions and weight
Komatsu PC20MR-3
Weighing roughly 2.2 t and rated at 20.8 hp, the Komatsu PC20MR-3 is a mini excavator in its size class.
01Published dimensions and weight
Dimensions reference
Measurement reference — not to scale
01Dimensions referenceLength × width × height
02Operating Weight4762 lb2160 kg
03Selected published values48
Mini excavators are commonly used for digging and utility work where access or working space is limited. Published rows for Komatsu PC20MR-3 include published operating weight of 4762 lb / 2160 kg, the published “Tail Swing Radius” field of 2.65 ft / 805 mm, the published “Track Gauge” field of 3.94 ft / 1200 mm. These values describe the published configuration; verify the specific machine's configuration, attachments and records.
- Compare the published “Tail Swing Radius” field (2.65 ft / 805 mm) with the specific machine's configuration and records; options and condition can differ.
- Compare the published “Track Gauge” field (3.94 ft / 1200 mm) with the specific machine's configuration and records; options and condition can differ.
- Compare the published “Bucket Offset Rh” field (2.5 ft / 760 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 Radius2.65 ft805 mm
Track Gauge3.94 ft1200 mm
Bucket Offset Rh2.5 ft760 mm
Crawler Length6.17 ft1880 mm
Boom Swing Angle Lh75 degrees75 degrees
Boom Swing Angle Rh50 degrees50 degrees
Bucket Offset Lh1.68 ft510 mm
Overall Height8.27 ft2520 mm
Overall Width4.76 ft1450 mm
Overall Length12.31 ft3750 mm
Track Shoe Width15255.94 ft250 mm
Undercarriage
Number Of Shoes Per Side3939
Number Of Carrier Rollers Per Side00
Adjustment Of The Track TensionGreaseGrease
Number Of Track Rollers Per Side33
Electrical System
Starter1.4 kW1.4 kW
Operation Voltage12 V12 V
Battery45 Ah45 Ah
Alternator40 A40 A
Engine
Flywheel Horsepower20.8 hp15.5 kw
Piston Displacement68.1 cu in1.2 L
Engine ModelKomatsu 3D76E-6Komatsu 3D76E-6
Engine TypeSwirl chamberSwirl chamber
Power Measured @2500 rpm2500 rpm
Capacities
Fuel Tank7.4 gal28 L
Hydraulic Tank5.1 gal19 L
Engine Oil0.9 gal3.4 L
Coolant0.8 gal3 L
Performance
Travel Speed (Maximum)2.9 mph4.6 km/h
Travel Speed (Minimum)1.8 mph2.8 km/h
Swing Speed8.9 rpm8.9 rpm
Ground Pressure3.9 psi26.9 kPa
Max. Traction Force4541.6 lb2060 kg
Gradeability30 degrees30 degrees
Bucket Digging Force (Iso)4232.9 lb1920 kg
Arm Crowd Force (Iso)3064.5 lb1390 kg
Weights
Operating Weight4762 lb2160 kg
Hydraulic System
Type Of Hydraulic PumpVariable capacity x 1 gear x 1Variable capacity x 1 gear x 1
Max. Oil Flow53.4 x 1 + 15.5 14.1 x 1 + 4.153.4 x 1 + 15.5 14.1 x 1 + 4.1
Hydraulic Motor (Travel)Variable capacity x 2Variable capacity x 2
Hydraulic Motor (Swing)fixed capacity x 1fixed capacity x 1
Max. Pressure Setting3560 psi24545.4 kPa
Auxiliary Hydraulic Flow9.3 gal/min35 L/min
Blade
Blade Width4.8 ft1450 mm
Blade Height11.9 in300 mm
Drive System
Drive MethodHydrostaticHydrostatic
Type Of Travel BrakeHydraulic lock typeHydraulic lock type
Type Of Travel ShoeRubberRubber
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Manufacturer-published specifications.