Kondasin International Co.,Ltd.
| Payment Terms | T/T, L/C, Western Union |
| Supply Ability | 50 Set/Sets per Month kelly bar for rotary rig |
| Delivery Time | 20 working days |
| Packaging Details | Wrapped with plastic film |
| Name | Friction or interlocking kelly bar |
| Type | Rotary drilling accessories |
| Sections | 3,4,5 |
| Material | Q345B |
| ize/diameter | Customized |
| Color | Customized |
| Brand Name | KonDaSin |
| Model Number | Rotary drilling kelly bar |
| Certification | ISO9001 |
| Place of Origin | China |
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Product Specification
| Payment Terms | T/T, L/C, Western Union | Supply Ability | 50 Set/Sets per Month kelly bar for rotary rig |
| Delivery Time | 20 working days | Packaging Details | Wrapped with plastic film |
| Name | Friction or interlocking kelly bar | Type | Rotary drilling accessories |
| Sections | 3,4,5 | Material | Q345B |
| ize/diameter | Customized | Color | Customized |
| Brand Name | KonDaSin | Model Number | Rotary drilling kelly bar |
| Certification | ISO9001 | Place of Origin | China |
| High Light | kelly bar drilling equipment ，kelly drive drilling | ||
High carbon steel Kelly Bar Piling Tool Drilling Rig Parts Thick Inner Outer Key
Kelly bar is the key part of a rotary rig, the aim is to transfer to the drilling tools both the torque and the pressure produced by the drilling machine..
The high quality of the components, all certified steels for the high mechanical features together with the strict procedures of the quality system ISO 9002, allows us to guarantee the highest reliability.
1) Interlocking kelly bar
Interlocking kelly bar is used for drilling in dense sand,gravel and weak to strong rock .Interlocking kelly bar can be fully locked by mechanical locking system on each section.Kelly bar can be equipped with specially designed springs or pressure plates for shock absorbing purpose.
2) Friction kelly bar
Friction kelly bar is another type which the external key is composed of 3 or 6 wear -resistant strip without pressunrizing point .This kelly bar can transform pressure when it is working.Also can produce peripheral force and pass down the pressure force,can produce the friction force.This kelly bar has the advantage of operating sample ,drilling deep ,but with less pressure transmission.So this one is suitable for the soft and silt layer.
| Name of product | External diameter (mm) | Pitch No | Length section (m) | Rated torque (KN*M) | Depth (m) |
| Friction kelly bar | 355 | 4,5 | 10-13 | 180 | 36-60 |
| 377 | 4,5 | 10-14 | 200 | 36-65 | |
| 406 | 4,5 | 10-15 | 210 | 36-70 | |
| 419 | 4,5 | 10-15 | 250 | 36-70 | |
| 440 | 4,5 | 10-15 | 250 | 36-70 | |
| 470 | 4,5,6 | 10-17 | 280 | 36-95 | |
| 508 | 4,5,6 | 10-18.5 | 320 | 36-103 | |
| 530 | 4,5,6 | 10-19 | 380 | 36-106 | |
| 575 | 4,5,6 | 10-21 | 420 | 36-120 | |
| 630 | 4,5,6 | 10-21 | 450 | 36-120 |
| Name of product | External diameter (mm) | Pith No | Length section (m) | Rated torque (KN*M) | Depth (m) |
| Interlocking kelly bar | 355 | 3 | 10-13 | 180 | 27-36 |
| 377 | 3,4 | 10-12.5 | 220 | 27-44 | |
| 406 | 3,4 | 10-15 | 230 | 27-57 | |
| 419 | 3,4 | 10-15 | 250 | 27-57 | |
| 440 | 3,4 | 10-15 | 250 | 27-57 | |
| 470 | 3,4 | 10-17 | 280 | 27-65 | |
| 508 | 3,4 | 10-17 | 320 | 27-65 | |
| 530 | 3,4 | 10-20 | 380 | 27-76 | |
| 575 | 3,4 | 10-21 | 420 | 27-80 | |
| 630 | 3,4 | 10-21 | 450 | 27-80 |
1. Good design of kelly pipe system
2. Big Gag between each kelly pipe
3. Thick Inner and outer key
4. Increase welding strength;
5. Increase pressing position wear resistant property;
Company Details
Business Type:
Manufacturer
Year Established:
2015
Employee Number:
50~60
Ecer Certification：
Active Member
Kondasin International Co.,Ltd. is a professional drilling rig and tools company.With over 10 years of successful experience,we are dedicated to serve world-wide customers in the field of pile foundation construction industry. The products we are serving include drilling rig,drilling buckets,... Kondasin International Co.,Ltd. is a professional drilling rig and tools company.With over 10 years of successful experience,we are dedicated to serve world-wide customers in the field of pile foundation construction industry. The products we are serving include drilling rig,drilling buckets,...
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