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

FeatureCaterpillar 312CExcavatorCaterpillar 312BExcavator
Excavator TypeMid-Size ExcavatorMid-Size Excavator
Weight12433 kg12433 kg
Horsepower67 kW63 kW
Digging Depth558 cm515 cm
Max Digging Depth558 cm515 cm
Max Loading Height609.6 cm588.3 cm
Max Reach Along Ground819.9 cm780.3 cm
Max Digging Reach579.1 cm—
Max Vertical Wall Digging Depth499.9 cm445.0 cm
Overall Length759.0 cm762.0 cm
Track Length3352.8 cm3352.8 cm
Length of Track on Ground280.4 cm280.4 cm
Reference Bucket Capacity0.6 m20.5 m2
Max Bucket Capacity0.8 m20.8 m2
Min Bucket Capacity0.3 m20.4 m2
Ground Clearance45.7 cm45.7 cm
Tail Swing Radius213.4 cm213.4 cm
Overall Width259.1 cm249.9 cm
Engine MakeCaterpillarCaterpillar
Engine Model3046 T3064 T Diesel Engine
Net Power67 kW63 kW
Gross Power70 kw68 kw
Rated Power1950 RPM1900 RPM
Hydraulic Pump Flow Capacity125 LPM238 LPM
Hydraulic System Capacity162.0 l162.0 l
Relief Valve Pressure343 Bar343 Bar
Operating Weight12433 kg12433 kg
Max Travel Speed5.6 km5.6 km
Swing Speed12.9 RPM12.3 RPM
Cab Height277.4 cm277.4 cm
AspirationTurbochargedTurbocharged
Cooling Capacity17.8 l15.5 l
Fuel Capacity250.2 l250.2 l
Swing Drive Capacity3.0 l3.0 l
Engine Oil Capacity17.8 l13.2 l
Ground Pressure33.1 kPa39.3 kPa
Displacement4250.8 cc4244.2 cc
Shoe Size61.0 cm50.0 cm
Max Cutting Height850.4 cm826.0 cm
Alternator55 A50 A
Track Gauge201.2 cm201.2 cm
Drawbar Pull11.217 kg10.401 kg
Operating Voltage—Operating Voltage 24 V
Stroke—13.2 cm
Bore—10.4 cm
Removal Counterweight Clearance—94.5 cm
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