Head to head
Hitachi ZX225US-7 vs Yanmar ViO57-6B
The Yanmar ViO57-6B has 207kW more power.
Last reviewed 13 September 2026
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Key differences
- Engine power: the Yanmar ViO57-6B has 207kW more power.
Specifications side by side
| Hitachi ZX225US-7 | Yanmar ViO57-6B | |
|---|---|---|
| Operating weight | 24,800 - 29,100kg | 5485 kg |
| Engine power | 128.4kW (ISO14396) / 122kW (ISO9249) | 33,5 kW (at 2200 rpm) |
| Dig depth | 6,120mm | - |
| Breakout force | - | 41,9 kN |
| Fuel tank | - | 66 l |
Sources: Hitachi ZX225US-7, Yanmar ViO57-6B. Figures vary by model year and options, so check with the supplier before you commit.
Buy or hire the ZX225US-7 if...
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 ViO57-6B if...
- you want one that has 207kW more power
A 5 to 6 tonne zero-tail swing digger for civils and groundworks contractors on deeper trenching, pipe laying and loading. Hire fleets use it where space is tight but a bigger machine is needed.
Full ViO57-6B specifications →Common questions
What is the difference between the Hitachi ZX225US-7 and the Yanmar ViO57-6B?
The Yanmar ViO57-6B has 207kW more power. The Hitachi ZX225US-7 is a 22-29 tonne reduced-tail-swing medium excavator; the Yanmar ViO57-6B is a 5.5 tonne zero-tail mini excavator.
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