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

FeatureHitachi EX120-5ExcavatorCaterpillar 311BExcavator
Excavator TypeMid-Size ExcavatorMid-Size Excavator
Weight11793 kg11125 kg
Horsepower60 kW59 kW
Digging Depth518 cm475 cm
Max Digging Depth518 cm475 cm
Max Loading Height594.4 cm530.4 cm
Max Reach Along Ground777.2 cm731.5 cm
Max Vertical Wall Digging Depth466.3 cm417.6 cm
Overall Length759.0 cm725.4 cm
Track Length3474.7 cm3139.4 cm
Length of Track on Ground289.6 cm262.1 cm
Reference Bucket Capacity0.3 m20.5 m2
Max Bucket Capacity0.7 m20.8 m2
Min Bucket Capacity0.2 m20.4 m2
Ground Clearance45.7 cm45.7 cm
Tail Swing Radius213.4 cm213.4 cm
Overall Width249.9 cm249.9 cm
Engine MakeIsuzuCaterpillar
Engine ModelA-4BG1T3064 T
Net Power60 kW59 kW
Gross Power64.4 kW63 kw
Rated Power2100 RPM1800 RPM
Hydraulic Pump Flow Capacity189 LPM216 LPM
Hydraulic System Capacity134.0 l157.1 l
Relief Valve Pressure343 Bar343 Bar
Operating Weight11793 kg11125 kg
Max Travel Speed5.6 km5.6 km
Swing Speed12.7 RPM10.8 RPM
Cab Height274.3 cm277.4 cm
AspirationTurbochargedTurbocharged
Max Torque314.0 Nm—
Cooling Capacity18.5 l15.5 l
Fuel Capacity250.2 l250.2 l
Swing Drive Capacity3.4 l3.0 l
Engine Oil Capacity16.3 l13.2 l
Ground Pressure37.2 kPa38.6 kPa
Number of Carrier Rollers per Side1—
Number of Track Rollers per Side7—
Number of Shoes per Side44—
Displacement4326.2 cc4244.2 cc
Shoe Size50.0 cm50.0 cm
Max Cutting Height835.2 cm768.1 cm
Track Gauge201.2 cm201.2 cm
Removal Counterweight Clearance91.4 cm94.5 cm
Torque Power1600 RPM—
Operating Voltage—Operating Voltage 24 V
Stroke—13.0 cm
Bore—10.2 cm
Alternator—50 A
Drawbar Pull—9.399 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