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Hitachi ZX135USB-7 vs Yanmar ViO33-6

The Hitachi ZX135USB-7 has 56kW more power.

Last reviewed 13 September 2026

Hitachi ZX135USB-7
Hitachi ZX135USB-7 - image: Hitachi Construction Machinery
Yanmar ViO33-6
Yanmar ViO33-6 - image: Field & Forest Machinery Ltd

Key differences

Specifications side by side

Hitachi ZX135USB-7Yanmar ViO33-6
Operating weight13,800 - 16,000kg3155 kg (canopy) / 3275 kg (cabin)
Engine power74kW (ISO14396) / 73kW (ISO9249)18.5 kW / 24.8 HP at 2200 rpm
Breakout force-29.9 kN
Fuel tank-41 l

Sources: Hitachi ZX135USB-7, Yanmar ViO33-6. Figures vary by model year and options, so check with the supplier before you commit.

Buy or hire the ZX135USB-7 if...

  • you want one that has 56kW more power

Built for sites with tight working margins - roadside, urban and confined yards - where a swinging counterweight would foul walls, parked vehicles or passing traffic. Popular with utility and demolition contractors working close to structures.

Listed by

Full ZX135USB-7 specifications →

Buy or hire the ViO33-6 if...

A zero-tail swing digger for groundworkers, utility contractors and hire fleets on trenching, drainage and foundations beside walls and fences. Suits urban sites with limited space.

Full ViO33-6 specifications →

Common questions

What is the difference between the Hitachi ZX135USB-7 and the Yanmar ViO33-6?

The Hitachi ZX135USB-7 has 56kW more power. The Hitachi ZX135USB-7 is a 13 tonne zero tail swing crawler excavator; the Yanmar ViO33-6 is a 3.2 tonne zero-tail mini excavator.

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