SPECS / COMPARISON
Komatsu PC78MR-6 vs Hitachi ZX75US-5
A detailed comparison of the Komatsu PC78MR-6 and the Hitachi ZX75US-5. Click a model name to view its full specifications.
Horsepower
Komatsu PC78MR-640 kW (54 HP)
Hitachi ZX75US-542 kW (56 HP)
Weight
Komatsu PC78MR-68270 kg (18232 lbs)
Hitachi ZX75US-58729 kg (19244 lbs)
Operating Weight
Komatsu PC78MR-68270 kg (18232 lbs)
Hitachi ZX75US-58729 kg (19244 lbs)
| Specification | Komatsu PC78MR-6 Mid-Size Excavators | Hitachi ZX75US-5 Mid-Size Excavators |
|---|---|---|
| Excavator Type | Mid-Size Excavator | Mid-Size Excavator |
| Weight | 8270 kg (18232 lbs) | 8729 kg (19244 lbs) |
| Horsepower | 40 kW (54 HP) | 42 kW (56 HP) |
| Digging Depth | 418 cm (164 in.) | 463 cm (182 in.) |
| Max Digging Depth | 418 cm (164 in.) | 463 cm (182 in.) |
| Max Loading Height | 454.2 cm (178.8 in.) | — |
| Max Reach Along Ground | 698.0 cm (274.8 in.) | 676.7 cm (266.4 in.) |
| Max Vertical Wall Digging Depth | 292.6 cm (115.2 in.) | — |
| Overall Length | 621.8 cm (244.8 in.) | — |
| Reference Bucket Capacity | 0.3 m2 (0.4 cu yds) | — |
| Max Bucket Capacity | 0.4 m2 (0.5 cu yds) | — |
| Min Bucket Capacity | 0.2 m2 (0.2 cu yds) | — |
| Ground Clearance | 36.6 cm (14.4 in.) | 36.6 cm (14.4 in.) |
| Tail Swing Radius | 143.3 cm (56.4 in.) | 131.1 cm (51.6 in.) |
| Overall Width | 234.7 cm (92.4 in.) | — |
| Engine Make | Komatsu | Yanmar |
| Engine Model | S4D95LE-3 | 4 TNV98C |
| Net Power | 40 kW (54 HP) | 42 kW (56 HP) |
| Gross Power | 44.2 kW (59.3 HP) | 45.7 kW (61.3 HP) |
| Rated Power | 1850 RPM | 2000 RPM |
| Hydraulic Pump Flow Capacity | 159 LPM (42.3 GPM) | 197 LPM (52.9 GPM) |
| Hydraulic System Capacity | 110.2 l (29.1 gal) | 102 l (27.3 gal) |
| Relief Valve Pressure | 265 Bar (3841 psi) | 39 Bar (566 psi) |
| Operating Weight | 8270 kg (18232 lbs) | 8729 kg (19244 lbs) |
| Max Travel Speed | 4.3 km (2.7 mph) | 5.1 km (3.2 mph) |
| Swing Speed | 10 RPM | 10.5 RPM |
| Cab Height | 274.3 cm (108.0 in.) | 271.3 cm (106.8 in.) |
| Aspiration | Turbocharged, aftercooled | Naturally |
| Cooling Capacity | 10.6 l (2.8 gal) | 9.8 l (2.6 gal) |
| Fuel Capacity | 125.3 l (33.1 gal) | — |
| Engine Oil Capacity | 7.6 l (2.0 gal) | — |
| Operating Voltage | Operating Voltage 24 V | — |
| Ground Pressure | 37.2 kPa (5.4 psi) | — |
| Number of Carrier Rollers per Side | 1 | — |
| Number of Track Rollers per Side | 5 | — |
| Number of Shoes per Side | 39 | 40 |
| Displacement | 3261.0 cc (199 cu. in.) | 3300.4 cc (201 cu. in.) |
| Shoe Size | 45.2 cm (17.8 in.) | — |
| No of Cylinders | 4 | — |
| Max Cutting Height | 658.4 cm (259.2 in.) | 762.0 cm (300.0 in.) |
| Alternator | 25 A | 50 amp |
| Track Gauge | 189.0 cm (74.4 in.) | — |
| Removal Counterweight Clearance | 76.2 cm (30.0 in.) | — |
| Drawbar Pull | 6.600 kg (14550 lbs) | 6.650 kg (14661 lbs) |
| Max Digging Reach | — | 694.9 cm (273.6 in.) |
| Emission | — | Tier 4 Final / EU Stage 4 |
| Cooling system | — | High efficiency direct-driven, suction-type fan |
| Bucket Digging Force(ISO) | — | 4.752 kg (10476.1 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.