*3 - 6 telescopic tube for drilling depth from 10 - 150 m
*Torque transfer capacity 30 - 500 kN.m
*Drilling diammeter 400-3000mm
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.
| OEM/ODM | Both |
| Material | Q345B /Q460D / 35CrMo With Special Heat Treatment |
| Manufacture Process | Robot Welding ,Gas Shielded welding , Manual DC Welding |
| Tailored | Round /Square |
Specification
| No. | Diammeter of The First Section
| Sections | Key Pressure Type | Length of per section(m) | Drill depth | Torque(KN.M) |
| 1 | ¢299 | 3 | | | Interlocking | 9-12 | 24-45 | 100 -120 |
| 2 | ¢342 | 3 | 4 | | Interlocking | 9 - 12 | 24-45 | 100 -120 |
| 3 | ¢355 | 3 | 4 | | Interlocking | 9 - 14 | 24 - 56 | 100-120 |
| 4 | ¢368 | 3 | 4 | | Interlocking | 9 - 14 | 24 - 56 | 150-180 |
| 5 | ¢377 | 3 | 4 | | Interlocking | 9 - 14 | 24 - 56 | 150-180 |
| 6 | ¢394 | 3 | 4 | | Interlocking | 9 - 15 | 24 - 58 | 180-200 |
| 7 | ¢406 | 3 | 4 | | Interlocking | 9 - 15 | 24 - 58 | 180-200 |
| 8 | ¢419 | 3 | 4 | | Interlocking | 9 - 15 | 24 - 58 | 200-230 |
| 9 | ¢440(445) | 3 | 4 | | Interlocking | 9 - 15 | 24 – 58 | 220-260 |
| 10 | ¢470 (482) | 3 | 4 | | Interlocking | 9 - 16 | 24 – 60 | 220-260 |
| 11 | ¢508 | 3 | 4 | | Interlocking | 9 – 18 | 24 – 68 | 260-360 |
| 12 | ¢530 (540) | 3 | 4 | 5 | Interlocking | 9 – 20 | 32 – 92 | 320-400 |
| 13 | ¢580(575) | 3 | 4 | 5 | Interlocking | 9 – 20 | 32 – 92 | 360-420 |
| 14 | ¢630 | 3 | 4 | 5 | Interlocking | 9 - 22 | 32 - 102 | 400-500 |
Our company founded in 2004, headquartered in Beijing, branch
factory in Shouguang, Shandong. The company is mainly engaged in
the production and sales of rotary piling kelly bars , drilling
tools, rotary piling rig overhaul, rig sales and accessories
supply.Over the years we focus on research and development of the
production of kelly bars, drill tools, with complete kelly bars
fabriction and testing equipments, as well as we own professional
research , design, sales and after-sales service team. Our company
has a number of self-developed patented products, matched with
domestic and abroad brands such as SANY, CRRC, XCMG, Bauer,
Soilmec, IMT and other brand rigs , exported to Southeast Asia, the
United States, Russia, the Middle East and other countries.
