SPECS / COMPARISON
Komatsu D31PX-22 vs Case 550H LGP
A detailed comparison of the Komatsu D31PX-22 and the Case 550H LGP. Click a model name to view its full specifications.
Horsepower
Komatsu D31PX-2259.7 kW (80 HP)
Case 550H LGP59.7 kW (80 HP)
Operating Weight
Komatsu D31PX-228190.0 kg (18055.9 lbs)
Case 550H LGP6785.7 kg (14960 lbs)
| Specification | Komatsu D31PX-22 Crawler Dozers | Case 550H LGP Crawler Dozers |
|---|---|---|
| Type | Crawler Dozer | Crawler Dozer |
| Horsepower | 59.7 kW (80 HP) | 59.7 kW (80 HP) |
| Operating Weight | 8190.0 kg (18055.9 lbs) | 6785.7 kg (14960 lbs) |
| Pump Flow | 99.2 LPM (26.2 GPM) | 82.9 LPM (21.9 GPM) |
| Engine Manufacturer | Komatsu | Case |
| Engine Model | SAA4D95LE-5 | 4 T-390 |
| Gross Power | 59.7 kW (80 HP) | 59.7 kW (80 HP) |
| Net Power | 58.2 kW (78 HP) | 52.2 kW (70 HP) |
| Aspiration | Turbocharged with aftercooled | Turbocharged |
| Number of Cylinders | 4 | 4 |
| Displacement | 3261.0 cc (199 cu in.) | 3916.5 cc (239 cu in.) |
| Bore | 9.7 cm (3.8 in.) | — |
| Stroke | 11.7 cm (4.6 in.) | — |
| Power Measured RPM | 2200 RPM | 2200 RPM |
| Alternator Supplied Amp. | 35 A | 65 A |
| Alternator | 35 A | 65 A |
| Battery | 24 V | 12 V |
| Transmission Type | Dual Power Shift | Constant mesh |
| Number of Forward Gears | 3 | 4 |
| Number of Reverse Gears | 3 | 4 |
| Max Speed Forward | 8.5 km/h (5.3 mph) | 9.3 km/h (5.8 mph) |
| Max Speed Reverse | 8.5 km/h (5.3 mph) | 10.3 km/h (6.4 mph) |
| Ground Pressure | 0.5 bar (6.7 psi) | 0.3 bar (3.7 psi) |
| Fuel Capacity | 195.3 l (51.6 gal) | 115.5 l (30.5 gal) |
| Engine Oil Capacity | 11.4 l (3 gal) | 10.6 l (2.8 gal) |
| Cooling System Capacity | 18.2 l (4.8 gal) | 15.9 l (4.2 gal) |
| Hydraulic Capacity | 60.2 l (15.9 gal) | 39.4 l (10.4 gal) |
| Final Drives Capacity | 3.8 l (1 gal) | 6.1 l (1.6 gal) |
| Pump type | Piston-type | — |
| Hydraulic Pump Flow | 99.2 LPM (26.2 GPM) | 82.9 LPM (21.9 GPM) |
| Relief Valve Pressure | 274.6 bar (3983 psi) | 172.4 bar (2500 psi) |
| Cab Height | 277.4 cm (109.2 in.) | 262.1 cm (103.2 in.) |
| Width Over Track | 192.0 cm (75.6 in.) | 231.6 cm (91.2 in.) |
| Length Overall | 417.6 cm (164.4 in.) | 399.3 cm (157.2 in.) |
| Length of Track on Ground | 219.5 cm (86.4 in.) | 198.1 cm (78.0 in.) |
| Track Gauge | 152.4 cm (60.0 in.) | 164.6 cm (64.8 in.) |
| Ground Clearance | 33.5 cm (13.2 in.) | 36.6 cm (14.4 in.) |
| Ground Contact Area | 44458.2 cm³ (2713 cu in.) | 66466.1 cm³ (4056 cu in.) |
| Shoe Size | 40.1 cm (15.8 in.) | 66.0 cm (26 in.) |
| Weight (Operating) | 8190.0 kg (18055.9 lbs) | 6785.7 kg (14960 lbs) |
| Max Torque | — | 298.3 N-m (220 lbs/ft) |
| Torque Measured RPM | — | 1500 RPM |
| No of Carrier Rollers Per Side | — | 1 |
| No of Shoes Per Side | — | 37 |
| No of Track Rollers Per Side | — | 6 |
| Track Pitch | — | 16.0 cm (6.3 in.) |
Values come from the manufacturer-sourced model files; empty cells mean the property is not published for that model. No performance ranking is applied.