Length | Diameter | Weight | Model No. | Part No. | |||
[mm] | [ft-in] | [mm] | [in] | [kg] | |||
1830 | 6' | 56 | 2' 13/64″ | 24 | T38-DN56-1830 | 622-9018-202 | |
Guide tube, Round 56, T38 - T38 | 3660 | 12' | 56 | 2' 13/64″ | 48 | T38-DN56-3660 | 622-9037-202 |
Length | Diameter | Weight | Model No. | Part No. | |||
[mm] | [ft-in] | [mm] | [in] | [kg] | |||
1830 | 6' | 63 | 2 31/64″ | 24 | T45-DN63-1830 | 623-9218-202 | |
Guide tube, Round 63, T45 - T45 | 3660 | 12' | 63 | 2 31/64″ | 46 | T45-DN63-3660 | 623-9237-202 |
Guide tube, Round 76, T45 - T45 | 3660 | 12' | 76 | 3″ | 78 | T45-DN76-3660 | 623-9337-202 |
Length | Diameter | Weight | Model No. | Part No. | |||
[mm] | [ft-in] | [mm] | [in] | [kg] | |||
1830 | 6' | 76 | 3″ | 40 | T51-DN76-1830 | 624-9418-202 | |
Guide tube, Round 76, T51 - T51 | 3660 | 12' | 76 | 3″ | 76 | T51-DN76-3660 | 624-9437-202 |
Guide tube, Round 87, T51 - T51 | 3660 | 12' | 87 | 3 1/2″ | 89 | T51-DN87-3660 | 624-9537-202 |
Length | Diameter | Weight | Model No. | Part No. | |||
[mm] | [ft-in] | [mm] | [in] | [kg] | |||
1525 | 5' | 76 | 3″ | 33 | ST58-DN76-1525 | 641-10315-202 | |
Drill tube, Round 76, ST58 - ST58 | 1830 | 6' | 76 | 3″ | 41 | ST58-DN76-1830 | 641-10318-202 |
Length | Diameter | Weight | Model No. | Part No. | |||
[mm] | [ft-in] | [mm] | [in] | [kg] | |||
1525 | 5' | 76 | 2 1/2″ | 28 | T45-DN65-1525 | 623-9715-202 | |
Drill tube, Round 76, T45 - T45 | 1830 | 6' | 76 | 2 1/2″ | 32 | T45-DN65-1830 | 623-9718-202 |
Length | Diameter | Weight | Model No. | Part No. | |||
[mm] | [ft-in] | [mm] | [in] | [kg] | |||
1525 | 5' | 87 | 3 1/2″ | 40 | ST68-DN87-1525 | 642-10415-202 | |
Drill tube, Round 87, ST68 - ST68 | 1830 | 6' | 87 | 3 1/2″ | 48 | ST68-DN87-1830 | 642-10418-202 |
Length | Diameter | Weight | Model No. | Part No. | |||
[mm] | [ft-in] | [mm] | [in] | [kg] | |||
4265 | 14' | 87 | 3 1/2″ | 104 | GT60-DN87-4265 | 661-10243-202 | |
Drill tube, Round 87, GT60 - GT60 |
In top hammer drilling, the guide tube serves the purpose of guiding the drill bit accurately to the desired drilling location. It helps to maintain the alignment and stability of the drill string, especially in challenging geological conditions or when drilling inclined or deviated boreholes. The guide tube ensures precise drilling accuracy and borehole alignment, making it crucial in applications where drilling accuracy is paramount, such as exploration drilling, geotechnical drilling, and construction projects.
In top hammer drilling, drill tubes are generally used under the following circumstances:
Reinforcing the Drilling System: Drill tubes are often employed when there's a need to reinforce the drilling system to handle harder rock formations or challenging drilling conditions. By using drill tubes, the overall strength and stability of the drilling system can be enhanced, reducing vibration and wear on the drilling components.
Increasing Energy Transfer: Drill tubes can facilitate better energy transfer from the hammer to the drill bit. This is particularly useful when drilling through dense or abrasive rock formations where maximizing impact energy is crucial for efficient drilling performance.
Deep Hole Drilling: For drilling deeper boreholes, longer drill strings are required. Drill tubes allow for the assembly of longer drilling strings by connecting multiple tubes together, enabling the drilling operation to reach greater depths.
Maintaining Drilling Stability: In unstable or fractured rock formations, drill tubes can help maintain drilling stability by providing additional support and reducing the risk of deviation or hole collapse during drilling.