Head to head
Comacchio GEO 900 vs HD Hyundai Construction Equipment R35Z-9A
The Comacchio GEO 900 is a crawler-mounted multipurpose drilling rig. The HD Hyundai Construction Equipment R35Z-9A is a a 3.5 tonne class zero tail swing compact excavator.
Last reviewed 13 September 2026
Specifications side by side
| Comacchio GEO 900 | HD Hyundai Construction Equipment R35Z-9A | |
|---|---|---|
| Engine power | 126-180kW (169-240hp) | 23.7 hp at 2,200 rpm (Yanmar 3TNV88F) |
| Weight | 16-18 tonnes | - |
| Torque range | 1,300-1,520 daNm | - |
| Feed stroke | 4,000-7,000mm | - |
| Operating weight | - | 8,344 lb |
| Dig depth | - | 10 ft 3.4 in |
Sources: Comacchio GEO 900, 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 GEO 900 if...
A crawler-mounted rig for geotechnical investigation, water well and geothermal drilling, adaptable to several drilling methods on the same base machine. Ground investigation and specialist drilling contractors hire it rather than general groundworks firms.
Listed by
- ChapmanPlant - Bristol, Iron Acton
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 Comacchio GEO 900 and the HD Hyundai Construction Equipment R35Z-9A?
The Comacchio GEO 900 is a crawler-mounted multipurpose drilling rig; the HD Hyundai Construction Equipment R35Z-9A is a a 3.5 tonne class zero tail swing compact excavator.
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