Head to head
Hitachi ZX170W-6 vs Kubota U17-3a
The Hitachi ZX170W-6 digs 3.37m (11ft) deeper.
Last reviewed 13 September 2026
Key differences
- Dig depth: the Hitachi ZX170W-6 digs 3.37m (11ft) deeper.
Specifications side by side
| Hitachi ZX170W-6 | Kubota U17-3a | |
|---|---|---|
| Dig depth | up to 5,830mm (5,720mm with 2-piece boom, 2.50m arm) | 2,460mm |
| Operating weight | - | 1,700kg |
| Engine power | - | 11.3kW |
Sources: Hitachi ZX170W-6, Kubota U17-3a. Figures vary by model year and options, so check with the supplier before you commit.
Buy or hire the ZX170W-6 if...
- you want one that digs 3.37m (11ft) deeper
A larger wheeled digger for contractors handling bigger drainage, sewer and groundworks packages who still need to drive between sites on the public road. The extra size over the 145W gives more reach and breakout force.
Listed by
- McGovern Plant Hire - Hounslow, Cranford
Buy or hire the U17-3a if...
A step up from a micro excavator for landscaping and groundworks contractors who need more dig depth and breakout force while still fitting through a standard gate or gap. Common on garden and small drainage jobs.
Listed by
- McGovern Plant Hire - Hounslow, Cranford
- Compact Plant Sales - Farnham
- Standard Plant Hire - Keston
Common questions
What is the difference between the Hitachi ZX170W-6 and the Kubota U17-3a?
The Hitachi ZX170W-6 digs 3.37m (11ft) deeper. The Hitachi ZX170W-6 is a 17 tonne wheeled excavator; the Kubota U17-3a is a 1.7 tonne mini excavator.
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