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Manufacturer-sourced values side by side. No performance equivalence or ranking is applied across different machine classes.

FeatureKubota KX057-4A1ExcavatorCaterpillar 311CExcavator
Excavator TypeMid-Size ExcavatorMid-Size Excavator
Weight11915 kg11979 kg
Horsepower34 kW59 kW
Digging Depth387 cm503 cm
Max Digging Depth387 cm503 cm
Max Vertical Wall Digging Depth173.7 cm442.0 cm
Ground Clearance33.5 cm45.7 cm
Overall Width2353.1 cm249.9 cm
Net Power34 kW59 kW
Gross Power35 kw61 kw
Rated Power2200 RPM—
Hydraulic Pump Flow Capacity42 LPM106 LPM
Hydraulic System Capacity79.1 l160.1 l
Auxiliary hydraulic flow72 LPM—
Operating Weight11915 kg11979 kg
Max Travel Speed5.0 km5.6 km
Min Travel Speed2.9 km—
Swing Speed9.3 RPM10.6 RPM
Cab Height256.0 cm277.4 cm
Blade Lift Height43 cm—
Fuel Capacity68.1 l194.9 l
Auxiliary Fuel Tank37.1 l—
Ground Pressure31.7 kPa41.4 kPa
Boom Swing(Left)70 °—
Boom Swing(Right)55 °—
Max Dumping Height420.6 cm—
Max Digging Height576.1 cm—
Displacement159600.2 cc4244.2 cc
Shoe Size40.1 cm50.8 cm
No of Cylinders4—
Max Digging Radius624.1 cm—
Max Drop below ground42.7 cm—
Max Loading Height—548.6 cm
Max Reach Along Ground—759.0 cm
Overall Length—691.9 cm
Track Length—3139.4 cm
Length of Track on Ground—262.1 cm
Reference Bucket Capacity—0.5 m2
Max Bucket Capacity—0.8 m2
Min Bucket Capacity—0.3 m2
Tail Swing Radius—176.8 cm
Engine Make—Caterpillar
Engine Model—3064 T
Relief Valve Pressure—299 Bar
Aspiration—Turbocharged
Cooling Capacity—17.4 l
Swing Drive Capacity—3.0 l
Engine Oil Capacity—19.7 l
Operating Voltage—Operating Voltage 24 V
Max Cutting Height—780.3 cm
Alternator—45 A
Track Gauge—198.1 cm
Drawbar Pull—9.380 kg
Sourceheavyequipments.net archive (imported 2026-10)heavyequipments.net archive (imported 2026-10)
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Side-by-side specification comparisons generated from the manufacturer-sourced model files. · 7,051