Rock Drilling
The Rock Drill Adapter (RDA) allows Akkerman pilot tube systems to accurately drill in rock formations using TriHawk® steering head technology that is commercially available. The RDA is designed to use Akkerman’s existing GBM guidance system or the contractor can choose to operate with a Sonde housing for extreme conditions.
FEATURES:
- The Rock Drill Adapter uses a bolt‑less square drive spline compatible with TriHawk® I, III, IV, and V steering heads.
- Suitable for densely compacted soils, soft rock, claystone, stone, limestone, and shale.
- Cuts a small annulus around pilot tubes, requiring minimal lubricant flushing compatible with Akkerman pumps.
- Easily adapted to all Akkerman GBM systems regardless of manufacture date.
- Low thrust pressures required; new Akkerman GBM systems include an RDA jacking pressure control assembly for smooth operation.
SPECIFICATIONS
Print This Page| Model | Ground | Bit Type | Cut Diameter |
|---|---|---|---|
| TriHawk® I | Compacted Soils, Cobble, Soft Rock | Embedded Carbide & Replaceable Bullet Teeth | 5.12-in. |
| TriHawk® III | Hard Soil, Soft Rock | Replaceable Bullet Teeth w/ Hard Facing | 5.5-in. |
| TriHawk® IV | Till, Cobble, Soft Rock | Embedded Carbide | 5.5-in. |
| TriHawk® V | Gravel, Loose Fill, Dense Soil | Embedded Carbide | 4.8-in. |
Testimonials
I reached out to Akkerman to obtain some basic pricing information on their MTBM and supporting equipment for a project. Cecilia Zavaleta provided all the information I needed in record time and was very helpful in answering all my questions. I highly appreciate Akkerman for providing such great support to engineers.
Bobby Daita, Principal Geotechnical Engineer
Parsons