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SPECS / COMPARISON

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

FeatureKubota KX91-3S2ExcavatorHitachi ZX80LCKExcavator
Excavator TypeMid-Size ExcavatorMid-Size Excavator
Weight7330 kg7200 kg
Horsepower21 kW39 kW
Digging Depth320 cm451 cm
Max Digging Depth320 cm451 cm
Max Loading Height353.6 cm612.6 cm
Max Reach Along Ground515.1 cm701.0 cm
Max Vertical Wall Digging Depth280.4 cm420.6 cm
Track Length5730.2 cm—
Length of Track on Ground478.5 cm—
Ground Clearance30.5 cm36.6 cm
Tail Swing Radius131.1 cm176.8 cm
Overall Width155.4 cm234.7 cm
Engine MakeKubotaIsuzu
Engine ModelD1703-M-E34 JG1
Net Power21 kW39 kW
Gross Power22 kw42.7 kW
Rated Power2250 RPM2100 RPM
Hydraulic Pump Flow Capacity61 LPM178 LPM
Hydraulic System Capacity55.3 l99.9 l
Operating Weight7330 kg7200 kg
Max Travel Speed4.8 km5.1 km
Swing Speed9.4 RPM11.3 RPM
Cab Height246.9 cm274.3 cm
Fuel Capacity50.3 l135.1 l
Displacement1499.4 cc3059.5 cc
Shoe Size30.2 cm45.2 cm
Max Cutting Height496.8 cm823.0 cm
Overall Length—640.1 cm
Relief Valve Pressure—314 Bar
Max Torque—192.1 Nm
Cooling Capacity—9.5 l
Engine Oil Capacity—12.1 l
Operating Voltage—Operating Voltage 24 V
Ground Pressure—31.0 kPa
Number of Carrier Rollers per Side—1
Number of Track Rollers per Side—5
Number of Shoes per Side—40
No of Cylinders—4
Alternator—30 A
Track Gauge—189.0 cm
Removal Counterweight Clearance—76.2 cm
Torque Power—1800 RPM
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