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Current number of specifications

 
Komatsu PC20MR-3 Mini Excavator

Selected Dimensions

Dimensions
H. Tail Swing Radius2.6 ft in805 mm

Specification

Electrical System
Alternator40 A
Starter1.4 kW
Operation voltage12 V
Battery45 Ah
Engine
Flywheel horsepower20.8 hp15.5 kw
Piston displacement68 cu in1.1 L
ModelKomatsu 3D76E-6
TypeSwirl chamber
Power Measured @2500 rpm
Capacities
Fuel Tank7.4 gal28 L
Hydraulic Tank5 gal19 L
Engine Oil0.9 gal3.4 L
Coolant0.79 gal3 L
Performance
Travel speed (Maximum)2.9 mph4.6 km/h
Travel speed (Minimum)1.7 mph2.8 km/h
Swing speed8.9 rpm
Ground pressure3.9 psi26.9 kPa
Max. traction force4541.5 lb2060 kg
Gradeability30 degrees
Bucket digging force (ISO)4232.9 lb1920 kg
Arm crowd force (ISO)3064.4 lb1390 kg
Undercarriage
Adjustment of the track tensionGrease
Number of Shoes per Side39
Number of Carrier Rollers per Side0
Number of Track Rollers per Side3
Weights
Operating Weight4762 lb2160 kg
Hydraulic System
Type of hydraulic pumpVariable capacity x 1 gear x 1
Max. oil flow53.4 x 1 + 15.5 14.1 x 1 + 4.1
Hydraulic motor (Travel)Variable capacity x 2
Hydraulic motor (Swing)fixed capacity x 1
Max. pressure setting3560 psi24545.3 kPa
Auxiliary hydraulic flow9.2 gal/min35 L/min
Blade
Blade Width4.8 ft in1450 mm
Blade Height11.8 in300 mm
DRIVE SYSTEM
Drive methodHydrostatic
Type of travel brakeHydraulic lock type
Type of travel shoeRubber
Dimensions
Crawler length6.2 ft in1880 mm
Track shoe width15255.9 ft in250 mm
Boom swing angle LH75 degrees
Boom swing angle RH50 degrees
Bucket offset LH1.7 ft in510 mm
Bucket offset RH2.5 ft in760 mm
Track Gauge3.9 ft in1200 mm
Overall length12.3 ft in3750 mm
Overall Width4.8 ft in1450 mm
Tail Swing Radius2.6 ft in805 mm
Overall Height8.3 ft in2520 mm