Head to head
JCB 50Z-2 vs Kubota KX030-4
The JCB 50Z-2 has 18kW more power and is the bigger machine by 2,240kg.
Last reviewed 6 October 2026
Key differences
- Engine power: the JCB 50Z-2 has 18kW more power.
- Operating weight: the JCB 50Z-2 is the bigger machine by 2,240kg.
- Dig depth: the JCB 50Z-2 digs 78cm (2.5ft) deeper.
Specifications side by side
| JCB 50Z-2 | Kubota KX030-4 | |
|---|---|---|
| Operating weight | 5030 kg | 2790 kg |
| Engine power | 36 kW | 17.7 kw |
| Dig depth | 3.65 m | 2870 mm |
| Dump height | 4.08 m | - |
| Width | - | 1500 mm |
Sources: JCB 50Z-2, Kubota KX030-4. Figures vary by model year and options, so check with the supplier before you commit.
Buy or hire the 50Z-2 if...
- you want one that has 18kW more power
- you want one that is the bigger machine by 2,240kg
- you want one that digs 78cm (2.5ft) deeper
A zero tailswing digger for utility trenching, house foundations and road edge work where the rear of the machine has to stay inside the track width. It is used on civils sites and hire fleets that want a 5 tonne class machine.
Full 50Z-2 specifications →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 JCB 50Z-2 and the Kubota KX030-4?
The JCB 50Z-2 has 18kW more power and is the bigger machine by 2,240kg. The JCB 50Z-2 is a 5 tonne zero tailswing mini excavator; the Kubota KX030-4 is a 2.8 tonne class mini excavator.
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