Coupling Sleeves
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Top hammer drilling
Coupling Sleeves: Unyielding Connections for Optimal Performance
Our coupling sleeves, expertly crafted from high-quality steel and subjected to specialized processing and heat treatment techniques, guarantee exceptional strength and longevity. Designed to forge a tight and reliable connection between drill rods and drill bits, our coupling sleeves prevent detachment or breakage during drilling operations.
Starockdrill offers three types of coupling sleeves
- Semi-Bridge Coupling Sleeves: Widely applicable for high-torque drilling machines, these sleeves feature threaded ends to securely connect two drill rods.
- Full-Bridge Coupling Sleeves: Eliminating any concerns of loose connections, these sleeves provide superior stability and are easily detachable during open-pit mining operations, ensuring a robust connection.
- Reducer Coupling Sleeves: Ideal for transitioning between different thread types and sizes of drill rods, these sleeves accommodate diverse drilling requirements.
Specifications
| Thread | Length (mm) | Diameter (mm) |
R22 | 140 | 32 |
R25 | 150 | 35 |
| 160 | 38 | |
R28 | 150 | 40 |
| 160 | 42 | |
R32 | 150 | 44 |
| 160 | 45 | |
R38 | 170 | 55 |
| 180 | 55 | |
| 190 | 55 | |
T38 | 180 | 55 |
| 190 | 55 | |
T45 | 207 | 63 |
| 210 | 66 | |
T51 | 225 | 71 |
| 235 | 72 |
Note: other specifications can be customized.
Features
- International standard threads, precisely machined for perfect compatibility, ensuring a secure and reliable connection.
- Employing special carburization processes, our coupling sleeves exhibit exceptional wear resistance, extending their service life.
- Customizable length and thread specifications, catering to unique customer requirements.
- Ensuring safety and stability, our coupling sleeves deliver reliable performance, guaranteeing operational efficiency and safety during construction.
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