1.taper drill rod and integral drill rod 2.durable steel material for longtime use 3.high quality and reasonable price Detailed Product Description1.applied to the hard and soft layer 2.the material using excelent alloy structural steel 3.high efficiecy Kelly bar is the key part of a drilling machine, and its quality directly affects the performance of the whole machine. The main purpose of kelly bar is to transfer the torque of rotary drive and crowd pressure of the crowd system to the drilling tool. Based on the rich manufacturing experience and by absorbing the advanced technology both at home and abroad, we can produce first-class kelly bar which can be compared favorably with the imported ones.
| Rotary drilling rig Kelly Bar | ||||
| Type | O.Dia.(MM) | Section | Depth(m) | Torque(KN.M) |
| DZ12 340-3x13 | 340 | 3 | 36 | 120 |
| DZ12 356-3x13 | 356 | 3 | 36 | 120 |
| DZ15 377-4x14 | 377 | 4 | 52 | 150 |
| DZ 20 406-4x14 | 406 | 4 | 52 | 200 |
| DZ 22 406-4x14 | 406 | 4 | 52 | 220 |
| DZ 25 445-4x15 | 445 | 4 | 56 | 250 |
| DZ25 445-3x15 (Reinforced) | 445 | 3 | 42 | 250 |
| DZ25 470-4x15 | 470 | 4 | 56 | 250 |
| DZ25 508-4x15 | 508 | 4 | 56 | 250 |
| DZ28 508-5x15 | 508 | 5 | 70 | 280 |
New interlocking kelly bar type kelly bar
New interlocking kelly type kelly bar
