
Rigs as Good as Our People
|
Numac’s capabilities are centered around using Geoprobe and Boart Longyear machines. The heavy duty Geoprobe rigs are mounted with both a powerful direct push percussion hammer for fast intact soil sampling and profiling, and a rotary drilling head for augering when necessary. The Boart Longyear rigs offer geotechnical capability with wireline and conventional coring, as well as down the hole, rotary and auger drilling methods. All Numac rigs are compact and track-driven, meaning they can be manoeuvred into tight locations on almost any site. Transported either by tilt tray, fully enclosed curtain or panel sided rigid truck for security or our "Rig in a Box" model, Numac can rapidly deploy resources to any geographical location around Australia. Using the differing features of these rigs, Numac is able to offer the following various sampling, remediation and investigative services. |
Rig Specifications
![]() |
Specifications & Dimensions | Geoprobe 6620DT |
| Width | 1524mm | |
| Length | 2438mm | |
| Height Mast Down | 2260mm | |
| Height Mast Up | 3886mm | |
| Weight | 3130kg | |
| Drill Rig Capabilities | ||
| Solid Auger | 35 metres (100-150mm) | |
| Hollow Auger | 20 metres (150-200mm) | |
| Push Tube | Yes | |
| SPT | No | |
| Downhole Hammer | 30 metres (125mm) | |
| Angle Holes | Limited | |
|
|
Specifications & Dimensions |
Geoprobe 7720DT |
| Width | 1524mm | |
|
Length |
2438mm | |
| Height Mast Down | 2260mm | |
| Height Mast Up | 4186mm | |
| Weight | 3160kg | |
| Drill Rig Capabilities | ||
| Solid Auger | 35 metres (100-150mm) | |
| Hollow Auger | 30 metres (150-200mm) | |
| Push Tube | Yes | |
| SPT | Yes | |
| Downhole Hammer | 30 metres (100mm) | |
| Angle Holes | Limited | |
![]() |
Specifications & Dimensions | Geoprobe 7822DT |
| Width | 1524mm | |
| Length | 3378mm | |
| Height Mast Down | 2400mm | |
| Height Mast Up | 4674mm | |
| Weight | 3427kg | |
| Drill Rig Capabilities | ||
| Solid Auger | 35 metres (150mm) | |
| Hollow Auger | 30 metres (150-300mm) | |
| Push Tube | Yes | |
| SPT | Yes | |
| Downhole Hammer | 35 metres (125mm) | |
| Angle Holes | Limited | |
![]() |
Specifications & Dimensions | Boart Longyear DB520 |
| Width | 1900mm | |
| Length | 6500mm | |
| Height Mast Down | 2470mm | |
| Height Mast Up | 7250mm | |
| Weight | 6200kg | |
| Drill Rig Capabiities | ||
| Solid Auger | 35 metres (150mm) | |
| Hollow Auger | 30 metres (150mm) | |
| Push Tube | No | |
| SPT | Yes | |
| Downhole Hammer | 200 metres (125mm) | |
| Angle Holes | Max 45 degree | |
| Diamond Coring | PQ3, NQ3, HQ3 | |








