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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Good Welding Quality Inter-locking Kelly Bar For Construction Machinery Parts For Drilling
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 invention comprises a reverse telescopic kelly bar that
includes an outer bar, any number of middle bars, and an upper
inner bar. Each section has its own driver that either rests on top
of the adjacent, lower larger diameter section or is engaged to the
rotary. The entire assembly is suspended by a swivel attached to a
multi-shieve traveling block.
When a section is rotated, it is either rotated by its driver via
the rotary or by the connected and adjacent lower and smaller
diameter section. Upper inner lugs are provided on the inside of
the hollow sections. These upper inner lugs are located near the
upper part of the middle bar and lower outer sections so that they
can receive torque, if required by the cross-section, when fully
extended from one section to another section below the rotary. A
thick ring is welded to the bottom of the middle section and upper
inner section. The inside lugs and the bottom ring also act as a
stop to hold the adjacent sections together when they are fully
extended so that adjacent sections can be supported from the other.
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
