Head to head
Comacchio GEO 900 vs Yanmar ViO20-6
The Comacchio GEO 900 is a crawler-mounted multipurpose drilling rig. The Yanmar ViO20-6 is a a 2.0-2.1 tonne true zero tail swing mini excavator.
Last reviewed 13 September 2026
Specifications side by side
| Comacchio GEO 900 | Yanmar ViO20-6 | |
|---|---|---|
| Engine power | 126-180kW (169-240hp) | 15.0 kW (20.1 hp) at 2,400 rpm |
| Weight | 16-18 tonnes | - |
| Torque range | 1,300-1,520 daNm | - |
| Feed stroke | 4,000-7,000mm | - |
| 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: Comacchio GEO 900, Yanmar ViO20-6. Figures vary by model year and options, so check with the supplier before you commit.
Buy or hire the GEO 900 if...
A crawler-mounted rig for geotechnical investigation, water well and geothermal drilling, adaptable to several drilling methods on the same base machine. Ground investigation and specialist drilling contractors hire it rather than general groundworks firms.
Listed by
- ChapmanPlant - Bristol, Iron Acton
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 Comacchio GEO 900 and the Yanmar ViO20-6?
The Comacchio GEO 900 is a crawler-mounted multipurpose drilling rig; the Yanmar ViO20-6 is a a 2.0-2.1 tonne true zero tail swing mini excavator.
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