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

FeatureCase 721EXTWheel loaderKomatsu WA320-6Wheel loader
TypeWheel LoaderWheel Loader
Horsepower128.3 kW—
Weight14437.8 kg14369.8 kg
Tipping Capacity11693.6 kg—
Max Speed38.0 km/h38.1 km/h
Engine ModelFamily IV 667TA/EED, Tier IIISAA6D107E-1
No Of Cylinders62
AspirationTurbocharged with AftercoolerTurbocharged, after cooled
Displacement6735.1 cc6690.9 cc
Alternator Supplied Amperage65 amps—
Operating Voltage24 V—
Rated Speed1800 RPM2000 RPM
Torque Speed1300 RPM—
Net Power128.3 kW—
Gross Power135.7 kW—
Peak Torque808.1 N-m—
Torque Rise31.4 %—
Fuel Capacity246.1 l245.3 l
Engine Oil Capacity14.4 l23.1 l
Cooling Capacity37.1 l25.4 l
Hydraulic System Capacity193.1 l89.3 l
Transmission Oil Capacity25.7 l—
Differential Front Capacity30.3 l—
Differential Rear Capacity27.6 l—
No of Forward Gears44
No of Reverse Gears34
Rear Axle Oscillation24 °—
Max Speed (Forward)38.0 km/h38.1 km/h
Max Speed (Reverse)25.7 km/h23.7 km/h
Pump typeClosed centered pressure/flow compensatedGear type pump
Pump Flow119.6 LPM172.2 LPM
Relief Pressure248.2 bar20.6 MPa 210 kgf/cm 2 2.990 psi
Raise Lift Arms5.6 sec6.1 sec
Lower Lift Time3.3 sec3.3 sec
Bucket Dump Time1.9 sec1.2 sec
Operating Weight14437.8 kg14369.8 kg
Tipping Load11693.6 kg—
Bucket Capacity (Heaped)2.3 m³—
Bucket Width274.3 cm274.3 cm
Breakout Force13049.8 kg15720 kgf
Reach At Max Lift And Dump121.9 cm—
Dump Clearance At Max Raise274.3 cm—
Turning Radius579.1 cm—
Wheelbase335.3 cm304.8 cm
Bucket Hinge Pin396.2 cm—
Cab Height335.3 cm304.8 cm
Overall Length792.5 cm731.5 cm
Ground Clearance30.5 cm30.5 cm
Width Over Tires243.8 cm243.8 cm
Tire Size20.5 R25—
Engine Type—Water-cooled, 4-cycle
Air Cleaner—Dry type
Stroke—45.5 cm
Bore—7.1 cm
Transmission Type—Hydrostatic
Service Brake—Hydraulically actuated
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