Head to head
Bobcat E55z vs Hitachi ZX135USB-7
The Hitachi ZX135USB-7 is the bigger machine by 8,529kg and has 38kW more power.
Last reviewed 13 September 2026
Key differences
- Operating weight: the Hitachi ZX135USB-7 is the bigger machine by 8,529kg.
- Engine power: the Hitachi ZX135USB-7 has 38kW more power.
Specifications side by side
| Bobcat E55z | Hitachi ZX135USB-7 | |
|---|---|---|
| Operating weight | 5271kg | 13,800 - 16,000kg |
| Engine power | 36.4kW | 74kW (ISO14396) / 73kW (ISO9249) |
| Dig depth | 3434mm | - |
| Breakout force | 30.99kN | - |
Sources: Bobcat E55z, Hitachi ZX135USB-7. Figures vary by model year and options, so check with the supplier before you commit.
Buy or hire the E55z if...
A midi excavator for groundworks, utilities and landscaping contractors. At 5.3 tonnes it arrives on a lorry rather than behind a car. It digs to 3434mm. Zero tail swing means the back of the machine stays inside the tracks when it slews, so it can work tight against a wall or in one lane of a road.
Listed by
Buy or hire the ZX135USB-7 if...
- you want one that is the bigger machine by 8,529kg
- you want one that has 38kW 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
- McGovern Plant Hire - Hounslow, Cranford
Common questions
What is the difference between the Bobcat E55z and the Hitachi ZX135USB-7?
The Hitachi ZX135USB-7 is the bigger machine by 8,529kg and has 38kW more power. The Bobcat E55z is a midi excavator, zero tail swing, 3 to 6 tonnes; the Hitachi ZX135USB-7 is a 13 tonne zero tail swing crawler excavator.
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