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

FeatureKomatsu D31PX-22DozerCase 550H LGPDozer
TypeCrawler DozerCrawler Dozer
Horsepower59.7 kW59.7 kW
Operating Weight8190.0 kg6785.7 kg
Pump Flow99.2 LPM82.9 LPM
Engine ManufacturerKomatsuCase
Engine ModelSAA4D95LE-54 T-390
Gross Power59.7 kW59.7 kW
Net Power58.2 kW52.2 kW
AspirationTurbocharged with aftercooledTurbocharged
Number of Cylinders44
Displacement3261.0 cc3916.5 cc
Bore9.7 cm—
Stroke11.7 cm—
Power Measured RPM2200 RPM2200 RPM
Alternator Supplied Amp.35 A65 A
Alternator35 A65 A
Battery24 V12 V
Transmission TypeDual Power ShiftConstant mesh
Number of Forward Gears34
Number of Reverse Gears34
Max Speed Forward8.5 km/h9.3 km/h
Max Speed Reverse8.5 km/h10.3 km/h
Ground Pressure0.5 bar0.3 bar
Fuel Capacity195.3 l115.5 l
Engine Oil Capacity11.4 l10.6 l
Cooling System Capacity18.2 l15.9 l
Hydraulic Capacity60.2 l39.4 l
Final Drives Capacity3.8 l6.1 l
Pump typePiston-type—
Hydraulic Pump Flow99.2 LPM82.9 LPM
Relief Valve Pressure274.6 bar172.4 bar
Cab Height277.4 cm262.1 cm
Width Over Track192.0 cm231.6 cm
Length Overall417.6 cm399.3 cm
Length of Track on Ground219.5 cm198.1 cm
Track Gauge152.4 cm164.6 cm
Ground Clearance33.5 cm36.6 cm
Ground Contact Area44458.2 cm³66466.1 cm³
Shoe Size40.1 cm66.0 cm
Weight (Operating)8190.0 kg6785.7 kg
Max Torque—298.3 N-m
Torque Measured RPM—1500 RPM
No of Carrier Rollers Per Side—1
No of Shoes Per Side—37
No of Track Rollers Per Side—6
Track Pitch—16.0 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