Head to head
Hitachi ZX170W-6 vs Hitachi ZX225US-7
The Hitachi ZX225US-7 digs 29cm deeper.
Last reviewed 13 September 2026
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Key differences
- Dig depth: the Hitachi ZX225US-7 digs 29cm deeper.
Specifications side by side
| Hitachi ZX170W-6 | Hitachi ZX225US-7 | |
|---|---|---|
| Dig depth | up to 5,830mm (5,720mm with 2-piece boom, 2.50m arm) | 6,120mm |
| Operating weight | - | 24,800 - 29,100kg |
| Engine power | - | 128.4kW (ISO14396) / 122kW (ISO9249) |
Sources: Hitachi ZX170W-6, Hitachi ZX225US-7. Figures vary by model year and options, so check with the supplier before you commit.
Buy or hire the ZX170W-6 if...
A larger wheeled digger for contractors handling bigger drainage, sewer and groundworks packages who still need to drive between sites on the public road. The extra size over the 145W gives more reach and breakout force.
Listed by
- McGovern Plant Hire - Hounslow, Cranford
Buy or hire the ZX225US-7 if...
- you want one that digs 29cm deeper
For contractors working in restricted yards or alongside live structures who still need the dig performance of a 20-tonne-plus machine. The reduced tail swing keeps the counterweight closer to the tracks than a standard crawler excavator of this size.
Listed by
- McGovern Plant Hire - Hounslow, Cranford
Common questions
What is the difference between the Hitachi ZX170W-6 and the Hitachi ZX225US-7?
The Hitachi ZX225US-7 digs 29cm deeper. The Hitachi ZX170W-6 is a 17 tonne wheeled excavator; the Hitachi ZX225US-7 is a 22-29 tonne reduced-tail-swing medium excavator.
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