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

FeatureKomatsu D31P-17DozerVolvo L30B ProDozer
TypeCrawler DozerWheel Loader
Horsepower50.7 kW50.7 kW
Operating Weight6700.0 kg5461.2 kg
Engine ManufacturerKomatsu—
Engine Model4 D105-5D3DCDE2
Gross Power50.7 kW52.9 kW
Number of Cylinders4—
Displacement4331.1 cc3110.3 cc
Power Measured RPM2350 RPM—
Transmission TypeHydrostaticHydrostatic
Number of Forward Gears3—
Number of Reverse Gears3—
Max Speed Forward6.6 km/h—
Max Speed Reverse7.2 km/h—
Ground Pressure0.2 bar—
Fuel Capacity115.1 l85.9 l
Cooling System Capacity22.3 l—
Cab Height271.3 cm274.3 cm
Width Over Track207.3 cm—
Length Overall387.1 cm—
Length without Blade304.8 cm—
Length of Track on Ground219.5 cm—
Track Gauge146.3 cm—
Ground Clearance39.6 cm61.0 cm
No of Shoes Per Side41—
No of Track Rollers Per Side6—
Shoe Size60.2 cm—
Weight (Operating)6700.0 kg—
Track Pitch15.5 cm—
Weight—5461.2 kg
Tipping Capacity—4399.8 kg
Max Speed—18.5 km/h
No Of Cylinders—4
Aspiration—Turbocharged
Alternator Supplied Amperage—80 amps
Operating Voltage—12 V
Rated Speed—2300 RPM
Torque Speed—1600 RPM
Net Power—50.7 kW
Peak Torque—241.3 N-m
Engine Oil Capacity—10.6 l
Hydraulic System Capacity—65.1 l
Differential Front Capacity—12.1 l
Differential Rear Capacity—13.6 l
No of Forward Gears—2
No of Reverse Gears—2
Rear Axle Oscillation—20 °
Max Speed (Forward)—18.5 km/h
Max Speed (Reverse)—18.5 km/h
Pump type—Gear type-pump
Pump Flow—54.9 LPM
Relief Pressure—249.9 bar
Raise Lift Arms—6.5 sec
Lower Lift Time—3.5 sec
Bucket Dump Time—1.5 sec
Tipping Load—4399.8 kg
Bucket Capacity (Heaped)—0.9 m³
Bucket Width—182.9 cm
Reach At Max Lift And Dump—61.0 cm
Dump Clearance At Max Raise—243.8 cm
Turning Radius—213.4 cm
Wheelbase—213.4 cm
Bucket Hinge Pin—335.3 cm
Overall Length—518.2 cm
Width Over Tires—182.9 cm
Tire Size—400 /70 R18
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