SPECS / COMPARISON
Case 721EXT vs Komatsu WA320-6
A detailed comparison of the Case 721EXT and the Komatsu WA320-6. Click a model name to view its full specifications.
Weight
Case 721EXT14437.8 kg (31830 lbs)
Komatsu WA320-614369.8 kg (31680 lbs)
Operating Weight
Case 721EXT14437.8 kg (31830 lbs)
Komatsu WA320-614369.8 kg (31680 lbs)
| Specification | Case 721EXT Wheel Loaders | Komatsu WA320-6 Wheel Loaders |
|---|---|---|
| Type | Wheel Loader | Wheel Loader |
| Horsepower | 128.3 kW (172 hp) | — |
| Weight | 14437.8 kg (31830 lbs) | 14369.8 kg (31680 lbs) |
| Tipping Capacity | 11693.6 kg (25780 lbs) | — |
| Max Speed | 38.0 km/h (23.6 mph) | 38.1 km/h (23.7 mph) |
| Engine Model | Family IV 667TA/EED, Tier III | SAA6D107E-1 |
| No Of Cylinders | 6 | 2 |
| Aspiration | Turbocharged with Aftercooler | Turbocharged, after cooled |
| Displacement | 6735.1 cc (411 cu in.) | 6690.9 cc (408.3 cu in.) |
| Alternator Supplied Amperage | 65 amps | — |
| Operating Voltage | 24 V | — |
| Rated Speed | 1800 RPM | 2000 RPM |
| Torque Speed | 1300 RPM | — |
| Net Power | 128.3 kW (172 hp) | — |
| Gross Power | 135.7 kW (182 hp) | — |
| Peak Torque | 808.1 N-m (596 lbs ft) | — |
| Torque Rise | 31.4 % | — |
| Fuel Capacity | 246.1 l (65 gal) | 245.3 l (64.8 gal) |
| Engine Oil Capacity | 14.4 l (3.8 gal) | 23.1 l (6.1 gal) |
| Cooling Capacity | 37.1 l (9.8 gal) | 25.4 l (6.7 gal) |
| Hydraulic System Capacity | 193.1 l (51 gal) | 89.3 l (23.6 gal) |
| Transmission Oil Capacity | 25.7 l (6.8 gal) | — |
| Differential Front Capacity | 30.3 l (8 gal) | — |
| Differential Rear Capacity | 27.6 l (7.3 gal) | — |
| No of Forward Gears | 4 | 4 |
| No of Reverse Gears | 3 | 4 |
| Rear Axle Oscillation | 24 ° | — |
| Max Speed (Forward) | 38.0 km/h (23.6 mph) | 38.1 km/h (23.7 mph) |
| Max Speed (Reverse) | 25.7 km/h (16 mph) | 23.7 km/h (14.7 mph) |
| Pump type | Closed centered pressure/flow compensated | Gear type pump |
| Pump Flow | 119.6 LPM (31.6 GPM) | 172.2 LPM (45.5 GPM) |
| Relief Pressure | 248.2 bar (3600 psi) | 20.6 MPa 210 kgf/cm 2 2.990 psi |
| Raise Lift Arms | 5.6 sec | 6.1 sec |
| Lower Lift Time | 3.3 sec | 3.3 sec |
| Bucket Dump Time | 1.9 sec | 1.2 sec |
| Operating Weight | 14437.8 kg (31830 lbs) | 14369.8 kg (31680 lbs) |
| Tipping Load | 11693.6 kg (25780 lbs) | — |
| Bucket Capacity (Heaped) | 2.3 m³ (3 cu yds) | — |
| Bucket Width | 274.3 cm (108 in) | 274.3 cm (108 in) |
| Breakout Force | 13049.8 kg (28770 lbs) | 15720 kgf |
| Reach At Max Lift And Dump | 121.9 cm (48 in) | — |
| Dump Clearance At Max Raise | 274.3 cm (108 in) | — |
| Turning Radius | 579.1 cm (228 in) | — |
| Wheelbase | 335.3 cm (132 in) | 304.8 cm (120 in) |
| Bucket Hinge Pin | 396.2 cm (156 in) | — |
| Cab Height | 335.3 cm (132 in) | 304.8 cm (120 in) |
| Overall Length | 792.5 cm (312 in) | 731.5 cm (288 in) |
| Ground Clearance | 30.5 cm (12 in) | 30.5 cm (12 in) |
| Width Over Tires | 243.8 cm (96 in) | 243.8 cm (96 in) |
| Tire Size | 20.5 R25 | — |
| Engine Type | — | Water-cooled, 4-cycle |
| Air Cleaner | — | Dry type |
| Stroke | — | 45.5 cm (17.9 in) |
| Bore | — | 7.1 cm (2.8 in) |
| Transmission Type | — | Hydrostatic |
| Service Brake | — | Hydraulically actuated |
Values come from the manufacturer-sourced model files; empty cells mean the property is not published for that model. No performance ranking is applied.