46 TTG Core Barrel – Extra Thin Kerf Double Tube System
The Atlas Copco XsafE 46 TTG extra thin kerf double tube core barrel is designed for core drilling in medium hard to extremely hard formations. The system features a threaded inner tube coupling for secure operation and improved core recovery in demanding drilling conditions.
Its optimized cutting geometry and reduced kerf ensure efficient penetration, stable performance and precise sampling. The design supports reliable flushing and consistent drilling results in both surface and underground exploration applications.
Technical Specifications
| Parameter | Value |
|---|---|
| Hole diameter (reaming shell O.D.) | 46.5 mm |
| Drill bit outer diameter | 46.0 mm |
| Core diameter | 35.3 mm |
| Bit kerf | 5.4 mm |
| Cutting surface | 705 mm² |
| Hole area | 1684 mm² |
| Core area | 979 mm² |
| Cutting area (% of hole) | 42% |
| Outer tube diameter | 45.2 mm |
| Standard connection | CR 42 |
| Recommended drill rod | 43 type |
| Rotation speed | 1250–2100 rpm |
| Weight on bit | 7–14 kN |
| Water flow | 6–12 l/min |
| Penetration rate | 14–26 cm/min |
Spare parts for the 46 TTG core barrel are available, including inner and outer tubes, core lifters, couplings, bearings and service kits for reliable operation and extended service life.