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

FeatureZettelmeyer ZL802DozerKomatsu D31EX-21 KOMSTAT IIDozer
TypeWheel LoaderCrawler Dozer
Horsepower56.0 kW55.9 kW
Weight6699.6 kg—
Tipping Capacity4599.4 kg—
Max Speed20.1 km/h—
Engine ModelKHD BF 4M 1012 ESAA4D102E-2
Engine TypeWater-cooled—
No Of Cylinders4—
AspirationTurbochargedTurbocharged with aftercooled
Displacement3200.4 cc3932.9 cc
Alternator Supplied Amperage55 amps—
Operating Voltage24 V—
Rated Speed2100 RPM—
Torque Speed1500 RPM—
Net Power56.0 kW55.9 kW
Gross Power58.0 kW—
Peak Torque300.0 N-m—
Fuel Capacity100.3 l165.0 l
Engine Oil Capacity9.1 l12.5 l
Hydraulic System Capacity110.2 l—
Differential Front Capacity8.7 l—
Differential Rear Capacity11.7 l—
Transmission TypePower shiftDual Power Shift
No of Forward Gears2—
No of Reverse Gears2—
Rear Axle Oscillation20 °—
Max Speed (Forward)20.1 km/h—
Max Speed (Reverse)20.1 km/h—
Pump typeGear—
Pump Flow82.1 LPM—
Relief Pressure210.0 bar—
Raise Lift Arms6.5 sec—
Lower Lift Time4 sec—
Bucket Dump Time1.5 sec—
Operating Weight6699.6 kg7130.5 kg
Tipping Load4599.4 kg—
Bucket Capacity (Heaped)1.0 m³—
Bucket Width213.4 cm—
Breakout Force6119.0 kg—
Reach At Max Lift And Dump91.4 cm—
Dump Clearance At Max Raise274.3 cm—
Turning Radius457.2 cm—
Wheelbase213.4 cm—
Bucket Hinge Pin335.3 cm—
Cab Height274.3 cm271.3 cm
Overall Length548.6 cm—
Ground Clearance61.0 cm39.6 cm
Width Over Tires213.4 cm—
Tire Size15.5-25—
Engine Manufacturer—Komatsu
Number of Forward Gears—3
Number of Reverse Gears—3
Max Speed Forward—8.5 km/h
Max Speed Reverse—8.5 km/h
Ground Pressure—0.4 bar
Cooling System Capacity—26.9 l
Hydraulic Capacity—46.9 l
Final Drives Capacity—3.4 l
Relief Valve Pressure—206.2 bar
Width Over Track—185.9 cm
Length Overall—402.3 cm
Length of Track on Ground—201.2 cm
Track Gauge—146.3 cm
Ground Contact Area—40902.2 cm³
No of Shoes Per Side—38
No of Track Rollers Per Side—5
Shoe Size—40.6 cm
Weight (Operating)—7130.5 kg
Track Pitch—144.8 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