Hunan Kellyway Machinery Co., Ltd.
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Rotary Drilling Rig Key Part Friction Kelly Bar for Drilling Machinery Piling Works
| 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 is another type kelly of bar, which the external key is composed of 3 or 6 wear -resistant strip without pressunrizing point.This kelly bar can form pressure force when the kelly bar is rotary.can produce peripheral force and the rotary passing down the pressure force,can produce the friction force.This kelly bar has the advantage of opeerating sample drilling deep,but with less pressure transmission.So this kelly bar is suitable for the soft and silt layer.
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
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