Head to head
JCB 50Z-2 vs Yanmar ViO57-6B
The Yanmar ViO57-6B has 299kW more power and is the bigger machine by 455kg.
Last reviewed 6 October 2026
Key differences
- Engine power: the Yanmar ViO57-6B has 299kW more power.
- Operating weight: the Yanmar ViO57-6B is the bigger machine by 455kg.
Specifications side by side
| JCB 50Z-2 | Yanmar ViO57-6B | |
|---|---|---|
| Operating weight | 5030 kg | 5485 kg |
| Engine power | 36 kW | 33,5 kW (at 2200 rpm) |
| Dig depth | 3.65 m | - |
| Dump height | 4.08 m | - |
| Breakout force | - | 41,9 kN |
| Fuel tank | - | 66 l |
Sources: JCB 50Z-2, Yanmar ViO57-6B. Figures vary by model year and options, so check with the supplier before you commit.
Buy or hire the 50Z-2 if...
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 ViO57-6B if...
- you want one that has 299kW more power
- you want one that is the bigger machine by 455kg
A 5 to 6 tonne zero-tail swing digger for civils and groundworks contractors on deeper trenching, pipe laying and loading. Hire fleets use it where space is tight but a bigger machine is needed.
Full ViO57-6B specifications →Common questions
What is the difference between the JCB 50Z-2 and the Yanmar ViO57-6B?
The Yanmar ViO57-6B has 299kW more power and is the bigger machine by 455kg. The JCB 50Z-2 is a 5 tonne zero tailswing mini excavator; the Yanmar ViO57-6B is a 5.5 tonne zero-tail mini excavator.
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