Coupling Sleeves
Rock drilling tools
Coupling Sleeves
Rock drilling tools
Coupling sleeves are mainly used to prolong drilling rods by putting them together. They are mostly used in quarries, mines and construction sites. We are able to produce coupling sleeves with different sizes and shapes so as to connect drilling rods with different sizes of threads. Apart from common coupling sleeves, customized sleeves can also be produced based on customers’ demands.
We are now able to produce coupling sleeves in different shapes and diameters, like R22, R25, R32, R35, R38, T38, T45, T51.
| Coupling Sleeves | L | D | Thread | ||
| Rigid Coupling Sleeve | mm | inch | mm | inch | |
 | 170 180 190 | 6 11/16 7 1/16 7 1/2 | 55 55 55 | 2 5/32 2 5/32 2 5/32 | R38 R38 R38 |
 | 160 170 | 6 5/16 6 3/4 | 45 55 | 1 3/4 2 5/32 | R32 R38 |
 | 170 190 | 6 11/16 7 1/2 | 55 55 | 2 5/32 2 5/32 | R38 T38 |
 | 235 | 9 1/4 | 72 | 2 27/32 | T51 |
 | 207 | 8 1/16 | 66 | 2 3/8 | T45 |
| Coupling Sleeves | L | D | Thread | ||
| Flexible Coupling Sleeve | mm | inch | mm | inch | |
 | 190 190 207 | 7 1/2 7 1/2 8 1/16 | 55 55 66 | 2 5/32 2 5/32 2 3/8 | R39/T38 R38/R32 R38/T45 |
 | 190 190 207 | 7 1/2 7 1/2 8 1/16 | 55 55 66 | 2 5/32 2 5/32 2 3/8 | T38/R38 T38/R32 T38/T45 |
 | 200 207 | 8 1/16 8 1/16 | 66 66 | 2 3/8 2 3/8 | T45/T38 T45/T51 |
| Drill Bit Connector | L | D | Thread | ||
| mm | inch | mm | inch | ||
 | 225 225 | 8 7/8 8 7/8 | 45 45 | 1 47/64 2 47/64 | R32/T38 R32/R38 |
 | 225 225 | 8 7/8 8 7/8 | 49 49 | 1 16/15 1 15/16 | T35/R32 R35/R32 |
 | 245 245 | 9 5/8 9 5/8 | 55 55 | 2 5/32 2 5/32 | T38/R32 R38/R32 |
SANDCO is a trusted manufacturer of rock drilling tools with focus on R&D, manufacture and supply of a variety of high quality drilling consumables. For the past years, we have manufactured and supplied a complete range of top hammer drill tools and DTH drill tools for different applications including mining, quarrying, construction and tunneling. As a reliable drilling tools manufacturer, we are constantly searching for ways to improve the quality of rock drilling tools and deliver unparalleled services to win customers' satisfaction.
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