Head to head
JCB 25Z-1 vs Kubota KX030-4
The Kubota KX030-4 is the bigger machine by 240kg and digs 5cm deeper. The JCB 25Z-1 has 1kW more power.
Last reviewed 13 September 2026

Key differences
- Operating weight: the Kubota KX030-4 is the bigger machine by 240kg.
- Engine power: the JCB 25Z-1 has 1kW more power.
- Dig depth: the Kubota KX030-4 digs 5cm deeper.
Specifications side by side
| JCB 25Z-1 | Kubota KX030-4 | |
|---|---|---|
| Operating weight | 2550 kg | 2790 kg |
| Dig depth | 2.82 m | 2870 mm |
| Engine power | 18.4 kW | 17.7 kw |
| Dump height | 3 m | - |
| Width | - | 1500 mm |
Sources: JCB 25Z-1, Kubota KX030-4. Figures vary by model year and options, so check with the supplier before you commit.
Buy or hire the 25Z-1 if...
- you want one that has 1kW more power
Used by hire firms and small contractors for patios, drainage, footings and work next to walls and fences where a zero-tailswing machine is needed. Sits in the weight class that can be towed on a trailer in restricted regions.
Full 25Z-1 specifications →Buy or hire the KX030-4 if...
- you want one that is the bigger machine by 240kg
- you want one that digs 5cm deeper
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 25Z-1 and the Kubota KX030-4?
The Kubota KX030-4 is the bigger machine by 240kg and digs 5cm deeper. The JCB 25Z-1 has 1kW more power. The JCB 25Z-1 is a 2.5 tonne zero-tailswing mini excavator; the Kubota KX030-4 is a 2.8 tonne class mini excavator.
GetBrent is an independent directory and is not a dealer for, nor affiliated with, either manufacturer. Model and brand names are the trademarks of their owners.
