Head to head
JCB 25Z-1 vs JCB 50Z-2
The JCB 50Z-2 is the bigger machine by 2,480kg and has 18kW more power.
Last reviewed 6 October 2026
Key differences
- Operating weight: the JCB 50Z-2 is the bigger machine by 2,480kg.
- Engine power: the JCB 50Z-2 has 18kW more power.
- Dig depth: the JCB 50Z-2 digs 83cm (2.5ft) deeper.
Specifications side by side
| JCB 25Z-1 | JCB 50Z-2 | |
|---|---|---|
| Operating weight | 2550 kg | 5030 kg |
| Dig depth | 2.82 m | 3.65 m |
| Dump height | 3 m | 4.08 m |
| Engine power | 18.4 kW | 36 kW |
Sources: JCB 25Z-1, JCB 50Z-2. Figures vary by model year and options, so check with the supplier before you commit.
Buy or hire the 25Z-1 if...
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 50Z-2 if...
- you want one that is the bigger machine by 2,480kg
- you want one that has 18kW more power
- you want one that digs 83cm (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 →Common questions
What is the difference between the JCB 25Z-1 and the JCB 50Z-2?
The JCB 50Z-2 is the bigger machine by 2,480kg and has 18kW more power. The JCB 25Z-1 is a 2.5 tonne zero-tailswing mini excavator; the JCB 50Z-2 is a 5 tonne zero tailswing mini excavator.
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