Head to head
Hitachi ZX220W-7 vs Komatsu D51PX
The Hitachi ZX220W-7 is a 20-25 tonne wheeled excavator, the largest in hitachi's zx-7 wheeled range. The Komatsu D51PX is a low ground pressure crawler dozer, 14 tonne class.
Last reviewed 13 September 2026
Specifications side by side
| Hitachi ZX220W-7 | Komatsu D51PX | |
|---|---|---|
| Operating weight | 20,100 - 24,900kg | 14,180kg |
| Dig depth | 5,810 - 6,300mm | - |
| Engine power | 128kW | - |
| Class | - | 14 tonne |
Sources: Hitachi ZX220W-7, Komatsu D51PX. Figures vary by model year and options, so check with the supplier before you commit.
Buy or hire the ZX220W-7 if...
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
Buy or hire the D51PX if...
A mid-size dozer built with wider, low ground pressure tracks for soft or wet ground. Groundworks and landfill contractors choose the PX variant over a standard-track D51 where the ground itself would otherwise bog a machine down.
Listed by
- B & T Plant Hire - Gravesend
- B & T Plant Hire Ltd - Morden
Common questions
What is the difference between the Hitachi ZX220W-7 and the Komatsu D51PX?
The Hitachi ZX220W-7 is a 20-25 tonne wheeled excavator, the largest in Hitachi's ZX-7 wheeled range; the Komatsu D51PX is a low ground pressure crawler dozer, 14 tonne class.
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