Head to head
Hitachi ZX225US-7 vs Hitachi ZX33U-6
The Hitachi ZX225US-7 is the bigger machine by 21,480kg and has 110kW more power.
Last reviewed 13 September 2026
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Key differences
- Operating weight: the Hitachi ZX225US-7 is the bigger machine by 21,480kg.
- Engine power: the Hitachi ZX225US-7 has 110kW more power.
Specifications side by side
| Hitachi ZX225US-7 | Hitachi ZX33U-6 | |
|---|---|---|
| Operating weight | 24,800 - 29,100kg | 3,320 - 3,720kg |
| Dig depth | 6,120mm | 2,790 - 3,130mm |
| Engine power | 128.4kW (ISO14396) / 122kW (ISO9249) | 18.8kW |
Sources: Hitachi ZX225US-7, Hitachi ZX33U-6. Figures vary by model year and options, so check with the supplier before you commit.
Buy or hire the ZX225US-7 if...
- you want one that is the bigger machine by 21,480kg
- you want one that has 110kW more power
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
Buy or hire the ZX33U-6 if...
A general-purpose mini digger for landscaping, utilities and small groundworks contractors who need to work in gardens, driveways and other access-restricted sites. Its zero tail swing lets it turn on the spot without swinging into fences or walls.
Listed by
- McGovern Plant Hire - Hounslow, Cranford
Common questions
What is the difference between the Hitachi ZX225US-7 and the Hitachi ZX33U-6?
The Hitachi ZX225US-7 is the bigger machine by 21,480kg and has 110kW more power. The Hitachi ZX225US-7 is a 22-29 tonne reduced-tail-swing medium excavator; the Hitachi ZX33U-6 is a 3.3-3.7 tonne zero tail swing mini excavator.
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