Head to head
Thwaites 6 Tonne Power Swivel vs Yanmar ViO20-6
The Thwaites 6 Tonne Power Swivel has 40kW more power.
Last reviewed 13 September 2026
Key differences
- Engine power: the Thwaites 6 Tonne Power Swivel has 40kW more power.
Specifications side by side
| Thwaites 6 Tonne Power Swivel | Yanmar ViO20-6 | |
|---|---|---|
| Engine power | 55.4 kW (74 hp) @ 2200rpm | 15.0 kW (20.1 hp) at 2,400 rpm |
| Payload | 6000 kg | - |
| Heaped capacity | 3150 litres | - |
| Engine | Deutz TCD 3.6 L4 | - |
| Operating weight | - | 2,125 kg (4,685 lb) (rubber track, canopy) |
| Dig depth | - | 2,410 mm (94.9 in) (blade down) |
| Overall width | - | 1,380 mm (54.3 in) |
Sources: Thwaites 6 Tonne Power Swivel, Yanmar ViO20-6. Figures vary by model year and options, so check with the supplier before you commit.
Buy or hire the 6 Tonne Power Swivel if...
- you want one that has 40kW more power
A 6 tonne dumper whose skip swivels so it can tip to either side, useful for loading into trenches and working along narrow roads or site edges. Used by groundworks and utility contractors on UK sites. A cab is listed as an option.
Full 6 Tonne Power Swivel specifications →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 →Common questions
What is the difference between the Thwaites 6 Tonne Power Swivel and the Yanmar ViO20-6?
The Thwaites 6 Tonne Power Swivel has 40kW more power. The Thwaites 6 Tonne Power Swivel is a 6 tonne power swivel site dumper; the Yanmar ViO20-6 is a a 2.0-2.1 tonne true zero tail swing mini excavator.
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