Specifications
Diameter (MM) | Elements | Length (M) | Torque (KN·M) | Max Drilling Depth(M) |
355 | 3&4&5 | 8-12 | 180 | 54 |
377/368 | 3&4&5 | 8-13 | 220 | 59 |
406/394 | 3&4&5 | 8-14 | 230 | 64 |
419/426 | 3&4&5 | 8-15 | 250 | 69 |
440/445 | 3&4&5 | 8-15 | 259 | 69 |
470 | 4&5&6 | 8-17 | 280 | 95 |
508 | 4&5&6 | 10-17 | 320 | 95 |
530 | 4&5&6 | 10-20 | 380 | 112 |
575 | 4&5&6 | 10-21 | 420 | 118 |
630 | 4&5&6 | 10-21 | 460 | 118 |
All specifications can be tailored as per customers’ special
requirements. |
Friction kelly bar derives its name from the means by which it transfer torque to the
drilling tool. The telescopic elements are advanced by using the
“frictional contact” from each of the friction drive rails that run
down the outside of each kelly bar.
These drive rails, on the outside of each kelly bar, are driven by
the rotary table and the terminal joints of each successively
larger diameter kelly bar.
The terminal joint is long piece on the inside and at the bottom of
each kelly bar. Friction kelly bars are normally supplied in 4 or 5 telescopic elements as they are
mostly used for deep piles in medium hard soil conditions.
Compare to the interlocking kelly bar, friction kelly bar has the advantage of deep drilling and easy operation.
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
We can make Kelly bar for both Chinese and European brands.
Company Information
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.
FAQ
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
