Head to head
Hitachi ZX85USB-6 vs Iseki TF321F
The Hitachi ZX85USB-6 has 27kW more power.
Last reviewed 13 September 2026
Key differences
- Engine power: the Hitachi ZX85USB-6 has 27kW more power.
Specifications side by side
| Hitachi ZX85USB-6 | Iseki TF321F | |
|---|---|---|
| Engine power | 42.4kW | 21HP |
| Operating weight | 8,430 - 9,060kg | - |
| Dig depth | 3,910 - 4,510mm | - |
| Drive | - | 4WD |
Sources: Hitachi ZX85USB-6, Iseki TF321F. 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 27kW 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 TF321F if...
A small 4WD compact tractor aimed at smallholdings, paddocks and estate grounds work rather than full-scale farming. Its low power puts it alongside garden and topper attachments, not ploughing or heavy haulage.
Listed by
- Baz plant Sales agricultural plant and machinery dealer - Chesterfield
Common questions
What is the difference between the Hitachi ZX85USB-6 and the Iseki TF321F?
The Hitachi ZX85USB-6 has 27kW more power. The Hitachi ZX85USB-6 is a 8.4-9.1 tonne zero tail swing crawler excavator; the Iseki TF321F is a 4WD compact tractor.
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