Active Member
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[China]
Address: Room 2522&2523, Block 10, Wujiangtianjie North, No.48, Qutang Road, Yuhua District, Qutang Road, Yuhua District, Changsha, Hunan, China
Contact name:Michael Shan
Hunan Kellyway Machinery Co., Ltd. |
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377mm Inter-Locking Kelly Bar For Drill Rotary Piling Rig Ground Hole
Diameter (MM) | Elements | Length (M) | Torque (KN·M) | Max Drilling Depth(M) |
355 | 3&4 | 8-12 | 180 | 42 |
377/368 | 3&4 | 8-13 | 220 | 46 |
406/394 | 3&4 | 8-14 | 230 | 50 |
419/426 | 3&4 | 8-15 | 250 | 54 |
440/445 | 3&4 | 8-15 | 259 | 54 |
470 | 3&4 | 8-17 | 280 | 62 |
508 | 3&4 | 10-17 | 320 | 62 |
530 | 3&4 | 10-20 | 380 | 71 |
575 | 3&4 | 10-21 | 420 | 75 |
630 | 3&4 | 10-21 | 460 | 75 |
All specifications can be tailored as per customers’ special requirements. | ||||
Kelly Bar is the key part for a Piling Rig, to make high reliable Kelly bar, we have to follow rules as below:
1. Top quality material
2. High welding quality
3. Appropriate heat treatment
4. Professional design
The objective of the present invention is to solve some of the problems associated with drilling large diameter deep shafts. The lower outer bar of the present invention is rigid and is attached to the drill tool, a straight hole may be drilled when a drill tool is used that is slightly larger in diameter than the largest cross-section of the lower outer bar. This could not be accomplished with a conventional telescopic kelly bar because the tool attaches to the smaller bar.
Once the lower outer bar on a conventional telescopic kelly bar is
fully extended it can no longer follow the drill tool, thus losing
the lower outer bar rigidly at the top of the tool and losing an
excavation that is slightly bigger than the longest cross-section
of the kelly bar attached to the tool. Another objective of this
invention is to allow drilling near perfect straight shafts.
Another objective of this invention is to provide the operator full
control of the kelly bars. An additional objective of this
invention is the elimination of uncontrolled floating of kelly
bars.
Hunan Kellyway Machinery Co., Ltd was founded by the main team which is with up to ten years’ experience on foundation works and piling machinery. Kellyway is committed to manufacture and supply most reliable and highest cost-performance products for piling works including Kelly Bars, Drilling Tools and Drilling teeth. Kellyway is working on provide the one-stop piling solutions for our domestic and global customers and we are dedicated to be your best partner for your piling works from China.
Q1. How long have you been in this business?
Over 10 years experience.
Q2. Do you accept sample order?
Yes sure, please contact us for details.
Q3. How about your after-sales service?
We offer promote technology support for all problems and questions.
Besides, we accept goods return or replace for quality problem.
Q4. How does your company control the quality?
Quality first. In order to guarantee high quality for our products.
Kellyway makes a serious inspection for all products and raw materials in strict procedure.
Our service
1. Prompt delivery
2. Best after-sale service
3. The products could be produce according to customer's
requirements
4. Inquiries are typically replyed within 24 hours
