# COMACCHIO GEO 305 Geotechnical Investigation Drill Rig

URL: https://knoedlseder.com/en/products/comacchio-geo-305-geotechnisches-bohrgeraet  
Languages: [de](https://knoedlseder.com/de/products/comacchio-geo-305-geotechnisches-bohrgeraet?format=md) · [en](https://knoedlseder.com/en/products/comacchio-geo-305-geotechnisches-bohrgeraet?format=md) · [cz](https://knoedlseder.com/cz/products/comacchio-geo-305-geotechnisches-bohrgeraet?format=md)

![COMACCHIO GEO 305 geotechnisches Raupenbohrgerät für Wireline-Kernbohrungen, DTH, SPT und Probenahmen](https://knoedlseder.com/media-cache/uploads/2026/08/comacchio-geo-305-2560x2560-1.jpg)

Category: [Machines and Drilling Rigs](https://knoedlseder.com/en/products/categories/maschinen-und-bohrgeraete?format=md)

**COMACCHIO GEO 305** is a drilling rig for geotechnical and environmental investigation. Different sampling and drilling methods can be used according to the head and auxiliary equipment fitted. Ground conditions, the required sample and the investigation objective determine the drilling method.

The GEO 305 can be equipped for conventional and wireline coring as well as DTH drilling. Its variable feed stroke also supports the installation of groundwater monitoring wells.

| Technical data |
| --- |
| Diesel engine power | 55.4 kW |
| Pullback force | 3,500–5,000 daN |
| Feed stroke | 1,600–3,600 mm |
| Torque range | 280–900 daNm |
| Clamping range | 45–305 mm |

Performance and dimensional ranges cover different versions. The drilling method, head and auxiliary equipment determine the specific machine configuration.

### Manufacturer Link

Detailed technical information can be found on the manufacturer’s product page.

[Manufacturer Link](https://www.comacchio.com/en/machine-configuration/geo-305)

## Documents

- [COMACCHIO GEO 305 Geotechnik-Bohrgerät – Datenblatt](https://knoedlseder.com/media-cache/uploads/2026/10/comacchio-geo-305-datenblatt-80d3c578add5.pdf)

## Related Products

- [COMACCHIO GEO-T 5 Truck-Mounted Geotechnical Investigation Drill Rig](https://knoedlseder.com/en/products/comacchio-geo-t-5-lkw-bohrgeraet-fuer-geotechnische-untersuchungen?format=md)
- [COMACCHIO GEO 300 Geotechnical Investigation Drill Rig](https://knoedlseder.com/en/products/comacchio-geo-300-geotechnisches-bohrgeraet?format=md)

## Contact Person

- [Head of Business Development](https://knoedlseder.com/en/team_members/christoph-damberger-b-eng?format=md)  
  Head of Business Development  
  Gotthard Knödlseder Hammerwerk GmbH