IMT Full Interlock Kelly Bar AF180 OD406mm Kelly Bar
Combined-interlock Kelly bar is composed by interlock Kelly bar and full multi-interlock Kelly bar.
For this type of Kelly bar , the first section is 3-keys interlock type, inner few sections are multi-type step keys , the outer keys are three sections three set of concave and convex form .
Combined-interlock Kelly bar is based on domestic rig configuration and condition demand, combined with the home and abroad advanced manufacture technology, supporting domestic and foreign rotary piling rig.
This type Kelly bar have been applied for patent, the patent No. is 201420542676.9
|
No. |
OD |
Section |
Way of crowding |
Length of per section(m) |
Drill depth |
Torque |
||
| 1 | ¢440 | 3 | 4 | 5 | interlock-type | 9 - 15 | 24 – 55 | 220-260 |
| 2 | ¢470(482) | 3 | 4 | 5 | interlock-type | 9 - 15 | 24 – 70 | 230-280 |
| 3 | ¢508 | 3 | 4 | 5 | interlock-type | 9 – 15 | 24 – 70 | 260-360 |
| 4 | ¢530(540) | 3 | 4 | 5 | interlock-type | 9 – 18 | 24 – 85 | 360-420 |
| 5 | ¢575(580) | 3 | 4 | 5 | interlock-type | 9 – 18 | 24 – 85 | 420-460 |
| 6 | ¢630 | 3 | 4 | 5 | interlock-type | 9 – 20 | 24 – 92 | 460-550 |
OUR KELLY BAR ADVANTAGE :
1. Adopt the advanced technology design and standard modular design.
2. Equipped with advanced processing facilities, processing technology and auto manufacturing equipment .
3. The kelly bar is with low weight , high strength , good abrasion resistance.
4. The material is from China top pipe manufacturer or imported from Germany . the seamless steel tube is with alloy and special heat treatment .
5. Have granted more than 35 patents for the kelly bar design area.
