Head to head
Yanmar ViO20-6 vs Yanmar ViO57-6B
The Yanmar ViO57-6B has 320kW more power and is the bigger machine by 3,360kg.
Last reviewed 13 September 2026
Key differences
- Engine power: the Yanmar ViO57-6B has 320kW more power.
- Operating weight: the Yanmar ViO57-6B is the bigger machine by 3,360kg.
Specifications side by side
| Yanmar ViO20-6 | Yanmar ViO57-6B | |
|---|---|---|
| Operating weight | 2,125 kg (4,685 lb) (rubber track, canopy) | 5485 kg |
| Engine power | 15.0 kW (20.1 hp) at 2,400 rpm | 33,5 kW (at 2200 rpm) |
| Dig depth | 2,410 mm (94.9 in) (blade down) | - |
| Overall width | 1,380 mm (54.3 in) | - |
| Breakout force | - | 41,9 kN |
| Fuel tank | - | 66 l |
Sources: Yanmar ViO20-6, Yanmar ViO57-6B. Figures vary by model year and options, so check with the supplier before you commit.
Buy or hire the ViO20-6 if...
The Yanmar ViO20-6 steps up from the ViO17 into the roughly 2 tonne mini excavator class, still with Yanmar's true zero tail swing geometry for working in confined spaces. It competes with the Caterpillar 301.7 CR and similarly sized Kubota and Takeuchi machines for UK groundworks and utility hire jobs. Its fixed rather than variable undercarriage keeps the design simpler than some rivals, at the cost of not being able to narrow down for transport.
Full ViO20-6 specifications →Buy or hire the ViO57-6B if...
- you want one that has 320kW more power
- you want one that is the bigger machine by 3,360kg
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 Yanmar ViO20-6 and the Yanmar ViO57-6B?
The Yanmar ViO57-6B has 320kW more power and is the bigger machine by 3,360kg. The Yanmar ViO20-6 is a a 2.0-2.1 tonne true zero tail swing mini excavator; the Yanmar ViO57-6B is a 5.5 tonne zero-tail mini excavator.
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