Head to head
Kubota KX030-4 vs Yanmar ViO57-6B
The Yanmar ViO57-6B has 317kW more power and is the bigger machine by 2,695kg.
Last reviewed 13 September 2026
Key differences
- Engine power: the Yanmar ViO57-6B has 317kW more power.
- Operating weight: the Yanmar ViO57-6B is the bigger machine by 2,695kg.
Specifications side by side
| Kubota KX030-4 | Yanmar ViO57-6B | |
|---|---|---|
| Operating weight | 2790 kg | 5485 kg |
| Engine power | 17.7 kw | 33,5 kW (at 2200 rpm) |
| Dig depth | 2870 mm | - |
| Width | 1500 mm | - |
| Breakout force | - | 41,9 kN |
| Fuel tank | - | 66 l |
Sources: Kubota KX030-4, Yanmar ViO57-6B. Figures vary by model year and options, so check with the supplier before you commit.
Buy or hire the KX030-4 if...
A 3 tonne class digger for hire fleets, groundworkers and landscapers on trenching, drainage and foundation work in confined spaces. The reduced overhang helps on tight sites.
Full KX030-4 specifications →Buy or hire the ViO57-6B if...
- you want one that has 317kW more power
- you want one that is the bigger machine by 2,695kg
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 Kubota KX030-4 and the Yanmar ViO57-6B?
The Yanmar ViO57-6B has 317kW more power and is the bigger machine by 2,695kg. The Kubota KX030-4 is a 2.8 tonne class mini excavator; the Yanmar ViO57-6B is a 5.5 tonne zero-tail mini excavator.
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