Head to head
Develon DX17Z-7 vs Iseki TF321F
The Iseki TF321F has 4kW more power.
Last reviewed 13 September 2026
Key differences
- Engine power: the Iseki TF321F has 4kW more power.
Specifications side by side
| Develon DX17Z-7 | Iseki TF321F | |
|---|---|---|
| Engine power | 11.9 kW (16.0 hp) at 2,400 rpm | 21HP |
| Operating weight | 1,910 kg (4,211 lb) | - |
| Dig depth | 2,200 mm (7 ft 3 in) | - |
| Drive | - | 4WD |
Sources: Develon DX17Z-7, Iseki TF321F. Figures vary by model year and options, so check with the supplier before you commit.
Buy or hire the DX17Z-7 if...
The Develon DX17Z-7 is the smallest excavator in the Develon range, formerly sold as a Doosan model before the 2023 rebrand, and competes for the same confined-space and landscaping hire jobs as the JCB 8008 CTS and Kubota KX019-4. UK dealers that previously stocked it as a Doosan now sell and service it under the Develon name with the same parts and support lines. It gives hire companies a mini excavator option outside the usual Kubota, JCB and Takeuchi trio at a similar size point.
Full DX17Z-7 specifications →Buy or hire the TF321F if...
- you want one that has 4kW more power
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 Develon DX17Z-7 and the Iseki TF321F?
The Iseki TF321F has 4kW more power. The Develon DX17Z-7 is a a 1.7 tonne mini excavator, Develon's smallest excavator model; the Iseki TF321F is a 4WD compact tractor.
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