Kelly Swivel is a critical component for rotary drilling rigs, designed to transmit high lifting force while allowing the Kelly bar to rotate freely during drilling operations. Manufactured from high-strength alloy steel with precision machining, it delivers excellent load capacity, wear resistance, and reliable performance in demanding foundation drilling applications.
Engineered for smooth operation and long service life, the Kelly swivel minimizes friction and ensures efficient power transmission between the rotary head and the Kelly bar. It is compatible with a wide range of rotary drilling rigs and is suitable for bored piling, bridge foundations, high-rise buildings, and other deep foundation projects. Rockway also offers customized Kelly swivels to meet different rig models and customer requirements.
Kelly Swivel Parameter
| Model No. | A1 | A2 | B1 | B2 | D1 | D2 | D3 | L1 | L2 | L3 | L4 | Bearings | Drill Pipe Core Section Steel Pipe Diameter | Rated Traction | Adaptive Drilling Rig Torque |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| HJ01 | 55 | 120 | 50 | 120 | Φ55 | Φ55 | Φ170 | 500 | 620 | 80 | 80 | 4 | ≥159 | 260 KN | 180–230 KN·m |
| HJ02 | 55 | 120 | 50 | 120 | Φ55 | Φ55 | Φ170 | 530 | 650 | 80 | 80 | 5 | ≥159 | 320 KN | 180–260 KN·m |
| HJ03 | 50 | 110 | 50 | 110 | Φ50 | Φ50 | Φ150 | 480 | 600 | 80 | 80 | 4 | ≥140 | 190 KN | 120–160 KN·m |
| HJ04 | 60 | 140 | 65 | 140 | Φ60 | Φ60 | Φ200 | 590 | 720 | 90 | 90 | 5 | ≥203 | 460 KN | 280–360 KN·m |
| HJ05 | 40 | 90 | 40 | 90 | Φ40 | Φ40 | Φ120 | 440 | 540 | 60 | 60 | 4 | ≥100 | 125 KN | 60–120 KN·m |
| HJ06 | 80 | 156 | 70 | 156 | Φ80 | Φ70 | Φ210 | 685 | 845 | 110 | 90 | 6 | ≥203 | 610 KN | 300–420 KN·m |
| HJ07 | 80 | 160 | 80 | 160 | Φ80 | Φ70 | Φ210 | 685 | 845 | 110 | 90 | 6 | ≥203 | 610 KN | 300–460 KN·m |
| HJ08 | 80 | 180 | 80 | 180 | Φ80 | Φ80 | Φ244 | 750 | 930 | 120 | 100 | 5 | ≥245 | 690 KN | 360–550 KN·m |
