Head to head
Hitachi ZX85USB-6 vs Kubota KX030-4
The Hitachi ZX85USB-6 has 25kW more power.
Last reviewed 13 September 2026
Key differences
- Engine power: the Hitachi ZX85USB-6 has 25kW more power.
Specifications side by side
| Hitachi ZX85USB-6 | Kubota KX030-4 | |
|---|---|---|
| Operating weight | 8,430 - 9,060kg | 2790 kg |
| Dig depth | 3,910 - 4,510mm | 2870 mm |
| Engine power | 42.4kW | 17.7 kw |
| Width | - | 1500 mm |
Sources: Hitachi ZX85USB-6, Kubota KX030-4. Figures vary by model year and options, so check with the supplier before you commit.
Buy or hire the ZX85USB-6 if...
- you want one that has 25kW more power
A popular hire-fleet size for groundworkers and utility contractors who need more reach and dig depth than a mini excavator but still want a zero-swing tail for working close to walls and other plant. Common on drainage and footing jobs on housing sites.
Listed by
- Red Plant Sales Ltd - Colchester, Frating
- McGovern Plant Hire - Hounslow, Cranford
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 →Common questions
What is the difference between the Hitachi ZX85USB-6 and the Kubota KX030-4?
The Hitachi ZX85USB-6 has 25kW more power. The Hitachi ZX85USB-6 is a 8.4-9.1 tonne zero tail swing crawler excavator; the Kubota KX030-4 is a 2.8 tonne class mini excavator.
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