Head to head
Hitachi ZX135USB-7 vs HD Hyundai Construction Equipment R35Z-9A
The Hitachi ZX135USB-7 has 56kW more power and is the bigger machine by 5,456kg.
Last reviewed 13 September 2026
Key differences
- Engine power: the Hitachi ZX135USB-7 has 56kW more power.
- Operating weight: the Hitachi ZX135USB-7 is the bigger machine by 5,456kg.
Specifications side by side
| Hitachi ZX135USB-7 | HD Hyundai Construction Equipment R35Z-9A | |
|---|---|---|
| Operating weight | 13,800 - 16,000kg | 8,344 lb |
| Engine power | 74kW (ISO14396) / 73kW (ISO9249) | 23.7 hp at 2,200 rpm (Yanmar 3TNV88F) |
| Dig depth | - | 10 ft 3.4 in |
Sources: Hitachi ZX135USB-7, HD Hyundai Construction Equipment R35Z-9A. 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
- you want one that is the bigger machine by 5,456kg
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
Buy or hire the R35Z-9A if...
The Hyundai R35Z-9A is a 3.5 tonne class zero tail swing compact excavator that gives UK contractors and hirers a lower-cost alternative to the equivalent Kubota, Takeuchi and JCB machines in the same size band. It uses a Yanmar diesel engine rather than an in-house Hyundai power unit at this size, reflecting how compact excavators across brands often share third-party engines and hydraulics. Hyundai's UK dealer coverage for this class is thinner than the market leaders, spread across several regional appointed dealers.
Full R35Z-9A specifications →Common questions
What is the difference between the Hitachi ZX135USB-7 and the HD Hyundai Construction Equipment R35Z-9A?
The Hitachi ZX135USB-7 has 56kW more power and is the bigger machine by 5,456kg. The Hitachi ZX135USB-7 is a 13 tonne zero tail swing crawler excavator; the HD Hyundai Construction Equipment R35Z-9A is a a 3.5 tonne class zero tail swing compact excavator.
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