Head to head
Bobcat E55z vs Hitachi ZX145W-6
The Hitachi ZX145W-6 has 69kW more power and is the bigger machine by 9,729kg.
Last reviewed 13 September 2026
Key differences
- Engine power: the Hitachi ZX145W-6 has 69kW more power.
- Operating weight: the Hitachi ZX145W-6 is the bigger machine by 9,729kg.
Specifications side by side
| Bobcat E55z | Hitachi ZX145W-6 | |
|---|---|---|
| Operating weight | 5271kg | 15,000 - 17,200kg |
| Dig depth | 3434mm | 5,520 - 5,770mm |
| Engine power | 36.4kW | 105kW (ISO14396) |
| Breakout force | 30.99kN | - |
Sources: Bobcat E55z, Hitachi ZX145W-6. 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 ZX145W-6 if...
- you want one that has 69kW more power
- you want one that is the bigger machine by 9,729kg
Suits municipal and utility contractors who need a mobile, road-going digger for drainage and reinstatement work spread across several sites in a day. The wheeled undercarriage trades some stability for speed between jobs.
Listed by
- McGovern Plant Hire - Hounslow, Cranford
Common questions
What is the difference between the Bobcat E55z and the Hitachi ZX145W-6?
The Hitachi ZX145W-6 has 69kW more power and is the bigger machine by 9,729kg. The Bobcat E55z is a midi excavator, zero tail swing, 3 to 6 tonnes; the Hitachi ZX145W-6 is a 14-17 tonne wheeled excavator.
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