Head to head
Hitachi ZX145W-6 vs Kubota U50-5
The Hitachi ZX145W-6 is the bigger machine by 10,225kg and has 65kW more power.
Last reviewed 13 September 2026
Key differences
- Operating weight: the Hitachi ZX145W-6 is the bigger machine by 10,225kg.
- Engine power: the Hitachi ZX145W-6 has 65kW more power.
Specifications side by side
| Hitachi ZX145W-6 | Kubota U50-5 | |
|---|---|---|
| Operating weight | 15,000 - 17,200kg | 4,775kg |
| Dig depth | 5,520 - 5,770mm | 3,370mm |
| Engine power | 105kW (ISO14396) | 40.4kW |
Sources: Hitachi ZX145W-6, Kubota U50-5. Figures vary by model year and options, so check with the supplier before you commit.
Buy or hire the ZX145W-6 if...
- you want one that is the bigger machine by 10,225kg
- you want one that has 65kW more power
Suits municipal and utility contractors who need a mobile, road-going digger for drainage and reinstatement work spread across several sites in a day. The wheeled undercarriage trades some stability for speed between jobs.
Listed by
- McGovern Plant Hire - Hounslow, Cranford
Buy or hire the U50-5 if...
A mid-size mini excavator for groundworkers who need more reach and dig depth than the smaller Kubota models while still keeping a compact machine for site access. Suits drainage, footings and utility trenching.
Listed by
- McGovern Plant Hire - Hounslow, Cranford
- Standard Plant Hire - Keston
Common questions
What is the difference between the Hitachi ZX145W-6 and the Kubota U50-5?
The Hitachi ZX145W-6 is the bigger machine by 10,225kg and has 65kW more power. The Hitachi ZX145W-6 is a 14-17 tonne wheeled excavator; the Kubota U50-5 is a 4.8 tonne mini excavator.
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