Head to head
Hitachi ZX33U-6 vs Kubota KX018-4
The Hitachi ZX33U-6 is the bigger machine by 1.6 tonnes.
Last reviewed 13 September 2026
Key differences
- Operating weight: the Hitachi ZX33U-6 is the bigger machine by 1.6 tonnes.
Specifications side by side
| Hitachi ZX33U-6 | Kubota KX018-4 | |
|---|---|---|
| Operating weight | 3,320 - 3,720kg | up to 1720kg |
| Dig depth | 2,790 - 3,130mm | 2380mm |
| Engine power | 18.8kW | - |
| Width | - | 1300mm |
Sources: Hitachi ZX33U-6, Kubota KX018-4. Figures vary by model year and options, so check with the supplier before you commit.
Buy or hire the ZX33U-6 if...
- you want one that is the bigger machine by 1.6 tonnes
A general-purpose mini digger for landscaping, utilities and small groundworks contractors who need to work in gardens, driveways and other access-restricted sites. Its zero tail swing lets it turn on the spot without swinging into fences or walls.
Listed by
- McGovern Plant Hire - Hounslow, Cranford
Buy or hire the KX018-4 if...
The 1.5 tonne class is the busiest size in UK hire fleets. At 1,720kg it goes on a braked plant trailer behind a large 4x4 or pickup, and digs to 2380mm for footings, drainage runs and fence posts.
Full KX018-4 specifications →Common questions
What is the difference between the Hitachi ZX33U-6 and the Kubota KX018-4?
The Hitachi ZX33U-6 is the bigger machine by 1.6 tonnes. The Hitachi ZX33U-6 is a 3.3-3.7 tonne zero tail swing mini excavator; the Kubota KX018-4 is a 1.5 tonne class mini excavator.
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