Head to head
Hitachi ZX145W-6 vs Hitachi ZX220W-7
The Hitachi ZX220W-7 is the bigger machine by 5.1 tonnes and has 23kW more power.
Last reviewed 13 September 2026
Key differences
- Operating weight: the Hitachi ZX220W-7 is the bigger machine by 5.1 tonnes.
- Engine power: the Hitachi ZX220W-7 has 23kW more power.
- Dig depth: the Hitachi ZX220W-7 digs 29cm deeper.
Specifications side by side
| Hitachi ZX145W-6 | Hitachi ZX220W-7 | |
|---|---|---|
| Operating weight | 15,000 - 17,200kg | 20,100 - 24,900kg |
| Dig depth | 5,520 - 5,770mm | 5,810 - 6,300mm |
| Engine power | 105kW (ISO14396) | 128kW |
Sources: Hitachi ZX145W-6, Hitachi ZX220W-7. Figures vary by model year and options, so check with the supplier before you commit.
Buy or hire the ZX145W-6 if...
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
Buy or hire the ZX220W-7 if...
- you want one that is the bigger machine by 5.1 tonnes
- you want one that has 23kW more power
- you want one that digs 29cm deeper
Targets larger utility, sewer and civils contractors who need crawler-class digging power on a road-going wheeled chassis. It sits at the top of Hitachi's current wheeled-excavator line, giving extra reach and depth over the 170W and 145W.
Listed by
- McGovern Plant Hire - Hounslow, Cranford
Common questions
What is the difference between the Hitachi ZX145W-6 and the Hitachi ZX220W-7?
The Hitachi ZX220W-7 is the bigger machine by 5.1 tonnes and has 23kW more power. The Hitachi ZX145W-6 is a 14-17 tonne wheeled excavator; the Hitachi ZX220W-7 is a 20-25 tonne wheeled excavator, the largest in Hitachi's ZX-7 wheeled range.
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