| product name | lift joint swivel head for rotary drilling rig kelly bar |
| type | for all brand of rotary drilling rig |
| size available | all size available and accept customied |
| Specification | ||||||||
|
Model |
D1 |
D2 |
D3 |
A |
B |
L1 |
Bearing No. |
Pull Power |
| JT20 | ¢120 | ¢40 | ¢40 | 43 | 43 | 460 | 3 | 15-25 |
| JT25 | ¢150 | ¢50 | ¢50 | 57 | 57 | 610 | 4 | 20-30 |
| JT30 | ¢170 | ¢55 | ¢55 | 57 | 57 | 640 | 4 | 25-35 |
| JT40 | ¢200 | ¢60¢80 | ¢60¢80 | 67 | 67 | 780 | 5 | 35-45 |
| JT50 | ¢220 | ¢80 | ¢80 | 73 | 83 | 930 | 6 | 45-55 |
