SPECS / COMPARISON
Komatsu WA320-3 Special vs Case 621EXT
A detailed comparison of the Komatsu WA320-3 Special and the Case 621EXT. Click a model name to view its full specifications.
Horsepower
Komatsu WA320-3 Special114.0 kW (152.9 hp)
Case 621EXT108.9 kW (146 hp)
Weight
Komatsu WA320-3 Special13349.2 kg (29430 lbs)
Case 621EXT13022.6 kg (28710 lbs)
Operating Weight
Komatsu WA320-3 Special13349.2 kg (29430 lbs)
Case 621EXT13022.6 kg (28710 lbs)
| Specification | Komatsu WA320-3 Special Wheel Loaders | Case 621EXT Wheel Loaders |
|---|---|---|
| Type | Wheel Loader | Wheel Loader |
| Horsepower | 114.0 kW (152.9 hp) | 108.9 kW (146 hp) |
| Weight | 13349.2 kg (29430 lbs) | 13022.6 kg (28710 lbs) |
| Max Speed | 34.1 km/h (21.2 mph) | 38.6 km/h (24 mph) |
| Engine Model | SA6D102E | Family IV, 667TA/EDB, Tier III |
| No Of Cylinders | 6 | 6 |
| Displacement | 5881.3 cc (358.9 cu in.) | 6702.3 cc (409 cu in.) |
| Rated Speed | 2350 RPM | 1800 RPM |
| Gross Power | 114.0 kW (152.9 hp) | 116.3 kW (156 hp) |
| Fuel Capacity | 200.2 l (52.9 gal) | 246.1 l (65 gal) |
| No of Forward Gears | 4 | 4 |
| No of Reverse Gears | 4 | 3 |
| Max Speed (Forward) | 34.1 km/h (21.2 mph) | 38.6 km/h (24 mph) |
| Max Speed (Reverse) | 35.1 km/h (21.8 mph) | 25.1 km/h (15.6 mph) |
| Operating Weight | 13349.2 kg (29430 lbs) | 13022.6 kg (28710 lbs) |
| Bucket Capacity (Heaped) | 2.7 m³ (3.5 cu yds) | 2.3 m³ (3 cu yds) |
| Bucket Capacity (Struck) | 2.3 m³ (3 cu yds) | 2.0 m³ (2.6 cu yds) |
| Bucket Width | 274.3 cm (108 in) | 274.3 cm (108 in) |
| Reach At Max Lift And Dump | 91.4 cm (36 in) | 121.9 cm (48 in) |
| Dump Clearance At Max Raise | 274.3 cm (108 in) | 274.3 cm (108 in) |
| Turning Radius | 609.6 cm (240 in) | 518.2 cm (204 in) |
| Wheelbase | 304.8 cm (120 in) | 304.8 cm (120 in) |
| Bucket Hinge Pin | 396.2 cm (156 in) | 396.2 cm (156 in) |
| Cab Height | 335.3 cm (132 in) | 335.3 cm (132 in) |
| Overall Length | 731.5 cm (288 in) | 762.0 cm (300 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 | 20.5-25 | 20.5 R25 |
| Tipping Capacity | — | 10605.0 kg (23380 lbs) |
| Aspiration | — | Turbocharged and Aftercooled |
| Alternator Supplied Amperage | — | 65 amps |
| Operating Voltage | — | 24 V |
| Torque Speed | — | 1300 RPM |
| Net Power | — | 108.9 kW (146 hp) |
| Peak Torque | — | 688.8 N-m (508 lbs ft) |
| Torque Rise | — | 33 % |
| Engine Oil Capacity | — | 13.2 l (3.5 gal) |
| Cooling Capacity | — | 36.0 l (9.5 gal) |
| Hydraulic System Capacity | — | 147.6 l (39 gal) |
| Transmission Oil Capacity | — | 18.9 l (5 gal) |
| Differential Front Capacity | — | 22.3 l (5.9 gal) |
| Differential Rear Capacity | — | 22.3 l (5.9 gal) |
| Rear Axle Oscillation | — | 24 ° |
| Pump type | — | Closed centered pressure/flow compensated |
| Pump Flow | — | 171.1 LPM (45.2 GPM) |
| Relief Pressure | — | 248.2 bar (3600 psi) |
| Raise Lift Arms | — | 6.3 sec |
| Lower Lift Time | — | 4.7 sec |
| Bucket Dump Time | — | 1.7 sec |
| Tipping Load | — | 10605.0 kg (23380 lbs) |
| Breakout Force | — | 11022.3 kg (24300 lbs) |
Values come from the manufacturer-sourced model files; empty cells mean the property is not published for that model. No performance ranking is applied.