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Head to head

Hitachi ZX33U-6 vs Yanmar ViO57-6B

The Yanmar ViO57-6B has 316kW more power.

Last reviewed 13 September 2026

Hitachi ZX33U-6
Hitachi ZX33U-6 - image: Hitachi Construction Machinery
Yanmar ViO57-6B
Yanmar ViO57-6B - image: Field & Forest Machinery Ltd

Key differences

Specifications side by side

Hitachi ZX33U-6Yanmar ViO57-6B
Operating weight3,320 - 3,720kg5485 kg
Engine power18.8kW33,5 kW (at 2200 rpm)
Dig depth2,790 - 3,130mm-
Breakout force-41,9 kN
Fuel tank-66 l

Sources: Hitachi ZX33U-6, Yanmar ViO57-6B. Figures vary by model year and options, so check with the supplier before you commit.

Buy or hire the ZX33U-6 if...

A general-purpose mini digger for landscaping, utilities and small groundworks contractors who need to work in gardens, driveways and other access-restricted sites. Its zero tail swing lets it turn on the spot without swinging into fences or walls.

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Full ZX33U-6 specifications →

Buy or hire the ViO57-6B if...

  • you want one that has 316kW more power

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 Hitachi ZX33U-6 and the Yanmar ViO57-6B?

The Yanmar ViO57-6B has 316kW more power. The Hitachi ZX33U-6 is a 3.3-3.7 tonne zero tail swing mini excavator; the Yanmar ViO57-6B is a 5.5 tonne zero-tail mini excavator.

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