Head to head
Hitachi ZX135USB-7 vs Hitachi ZX145W-6
The Hitachi ZX145W-6 has 31kW more power and is the bigger machine by 1.2 tonnes.
Last reviewed 13 September 2026
Key differences
- Engine power: the Hitachi ZX145W-6 has 31kW more power.
- Operating weight: the Hitachi ZX145W-6 is the bigger machine by 1.2 tonnes.
Specifications side by side
| Hitachi ZX135USB-7 | Hitachi ZX145W-6 | |
|---|---|---|
| Operating weight | 13,800 - 16,000kg | 15,000 - 17,200kg |
| Engine power | 74kW (ISO14396) / 73kW (ISO9249) | 105kW (ISO14396) |
| Dig depth | - | 5,520 - 5,770mm |
Sources: Hitachi ZX135USB-7, Hitachi ZX145W-6. Figures vary by model year and options, so check with the supplier before you commit.
Buy or hire the ZX135USB-7 if...
Built for sites with tight working margins - roadside, urban and confined yards - where a swinging counterweight would foul walls, parked vehicles or passing traffic. Popular with utility and demolition contractors working close to structures.
Listed by
- McGovern Plant Hire - Hounslow, Cranford
Buy or hire the ZX145W-6 if...
- you want one that has 31kW more power
- you want one that is the bigger machine by 1.2 tonnes
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
Common questions
What is the difference between the Hitachi ZX135USB-7 and the Hitachi ZX145W-6?
The Hitachi ZX145W-6 has 31kW more power and is the bigger machine by 1.2 tonnes. The Hitachi ZX135USB-7 is a 13 tonne zero tail swing crawler excavator; the Hitachi ZX145W-6 is a 14-17 tonne wheeled excavator.
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