1.outer diameter 8.35in
2.overall length 31.10in
3. single ear bore diameter 3.54in
4.Connection pin and box pull join
Swivels
1) Northlink Co., Ltd produces swivels from 10 to 600 tons for 16 years.
2) Our swivels are designed according to US standards to provide enhanced mechanical performance, safety and service life. They use Japanese NOK seals and NSK bearings from Sweden, which ensure effective heat dispersal.
3) For swivels up to 120 tons, a single-ear connection may be used at either end, or a double-ear structure is also available to connect to the drill string or a pin and box pull head. For swivels above 150 tons, the front end features a box thread connection, while the back end uses a single-ear structure.
4) Swivels of 200 tons and above may be designed and manufactured according to customers’ requirements.
Single-ear Swivels (unit = in)
Model | D | B1' | L1' | d1 | D1 | L' | Thread |
FDQ10TA | 3.94 | 1.65 | 1.38 | 1.38 | 2.76 | 15.35 |
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FDQ15TA |
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FDQ20TA |
| 1.89 | 1.77 |
| 3.15 | 20.08 |
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FDQ25TA |
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FDQ30TA | 5.83 | 2.21 | 2.05 | 1.73 | 3.54 | 23.31 |
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FDQ45TA | 6.50 | 2.76 | 2.36 | 2.17 | 4.33 | 25.98 | NC31 |
FDQ50TA |
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FDQ60TA | 7.09 | 3.74 | 3.23 | 2.95 | 4.33(5.12) | 28.74 | NC31 NC38 |
FDQ80TA | 8.35 | 3.94 | 3.54 | 2.95 | 5.12 | 31.10 | NC38 NC50 |
FDQ100TA | 8.66 | 4.72 | 3.66 | 3.43 | 5.12(6.70) | 30.40 | NC50 |
FDQ120TA | 9.25 | 4.92 | 3.86 | 3.86 | 5.12(6.70) | 35.12 | NC50 |
FDQ150TA | 10.04 | 5.12 | 4.53 | 4.41 | 5.12(6.70) | 36.77 | NC50 |
FDQ200TA | 12.20 | 6.30 | 5.43 | 5.20 | 5.12(6.70) | 40.04 | NC50 |
