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

FeatureZettelmeyer ZL502BDozerKomatsu D21P-8Dozer
TypeWheel LoaderCrawler Dozer
Horsepower35.0 kW32.1 kW
Weight4195.7 kg—
Tipping Capacity3120.7 kg—
Max Speed20.1 km/h—
Engine ModelKHD F4L 1011 F4 D94LE-2
No Of Cylinders4—
AspirationNaturallyNaturally
Displacement2730.1 cc3048.0 cc
Alternator Supplied Amperage60 amps—
Operating Voltage12 V—
Rated Speed2800 RPM—
Torque Speed1800 RPM—
Net Power35.0 kW29.8 kW
Gross Power36.0 kW32.1 kW
Peak Torque129.1 N-m—
Fuel Capacity60.2 l60.2 l
Engine Oil Capacity10.6 l6.4 l
Hydraulic System Capacity60.2 l—
Differential Front Capacity10.2 l—
Differential Rear Capacity11.4 l—
Transmission TypePower shiftHydroshift
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 Flow45.0 LPM—
Relief Pressure220.0 bar—
Raise Lift Arms6 sec—
Lower Lift Time3 sec—
Bucket Dump Time1 sec—
Operating Weight4195.7 kg4241.1 kg
Tipping Load3120.7 kg—
Bucket Capacity (Heaped)0.7 m³—
Bucket Width182.9 cm—
Breakout Force3928.1 kg—
Reach At Max Lift And Dump91.4 cm—
Dump Clearance At Max Raise243.8 cm—
Turning Radius396.2 cm—
Wheelbase213.4 cm—
Bucket Hinge Pin304.8 cm—
Cab Height243.8 cm246.9 cm
Overall Length487.7 cm—
Ground Clearance30.5 cm—
Width Over Tires182.9 cm—
Tire Size12.5-18—
Engine Manufacturer—Komatsu
Number of Cylinders—4
Number of Forward Gears—2
Number of Reverse Gears—2
Max Speed Forward—4.3 km/h
Max Speed Reverse—5.6 km/h
Ground Pressure—0.2 bar
Cooling System Capacity—9.8 l
Hydraulic Capacity—20.8 l
Final Drives Capacity—7.9 l
Width Over Track—152.4 cm
Length Overall—338.3 cm
Ground Contact Area—43655.2 cm³
No of Shoes Per Side—37
No of Track Rollers Per Side—5
Shoe Size—50.8 cm
Weight (Operating)—4241.1 kg
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