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Coupling sleeve is used to connect drill rod and drill rod, and drill rod and shank adapter, and has a sleeve with internal thread. It’s widely used in open pit mining, underground mining, roadway excavation, anchoring engineering, blast furnace taphole, tunnel engineering, hydropower engineering, quarrying, and other construction projects.
Function: The coupling sleeve adopts a special structural design to reduce the energy loss during the drilling process, thus ensuring maximum impact energy at the drill bit position.
According to the structure, it includes a full bridge coupling sleeve and a reducing coupling sleeve.
Full bridge coupling sleeve: it is used for open-air construction, easy to dismantle, stable connection, and little risk of stuck.
Reducing coupling sleeve: Different thread at the ends to connect matchable products under specific conditions.
Coupling sleeve type: full bridge coupling sleeve and reducing coupling sleeve
Thread size: R32, R38, T38, T45, T51.
| Specification | Length | Outer Dia. | Thread Type | Weight | ||
|---|---|---|---|---|---|---|
| mm | inch | mm | inch | kg | ||
| K31145-0150-1313 | 150 | 5 7/8″ | 45 | 1 3/4″ | R32 | 1.00 |
| K31145-0160-1313 | 160 | 6 5/16″ | 45 | 1 3/4″ | R32 | 1.10 |
| K31155-0170-1515 | 170 | 6 3/4″ | 55 | 2 5/32″ | R38 | 1.80 |
| K31155-0180-1515 | 180 | 7 1/16″ | 55 | 2 5/32″ | R38 | 1.80 |
| K31155-0190-1515 | 190 | 7 1/2″ | 55 | 2 5/32″ | R38 | 2.20 |
| K31155-0190-2525 | 190 | 7 1/2″ | 55 | 2 5/32″ | T38 | 2.00 |
| K31166-0207-2626 | 207 | 8 1/16″ | 66 | 2 5/8″ | T45 | 3.20 |
| K31172-0235-2727 | 235 | 9 1/4″ | 72 | 2 27/32″ | T51 | 4.00 |
| K31177-0235-2727 | 235 | 9 1/4″ | 77 | 3 1/32″ | T51 | 4.30 |
The above specifications mainly take the full bridge coupling sleeve coupling sleeve as an example.
For more product specifications, please email us at info.k@kellegco.com or leave us a message, Kelleg will provide you with a professional and prompt reply.
