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Friction Kelly Bar for Deep Foundation Drilling
| Different name： | Kelly bar for rotary drilling rig |
| Main application： | deep foundation drilling; |
| Core specification parameters： | Friction type, telescope kelly |
| Applications: | Deep foundation engineering, bored piling, cassion, Drilled shafts, cast-in-drilled-hole piles, Civil engineering, Infrastructure, building, bridge, high-speed railway etc. |
Description
Kelly bar is a telescopic drilling rod to transfer the torque of rotary drive and crowd pressure of the crowd system to the drilling tool. Kimdrill can customize kelly bar on requested that can be applied to any type of piling rig available in market.
Kelly bar is mainly classified into friction Kelly bar and interlocking Kelly bar.
Friction Kelly bars are used with piling rigs for drilling in silt, clay and less dense sand and gravel. We adopt seamless alloy tube from famous steel enterprise and process the tube with special hot-treatment to enhance the material’s strength more than 800Mpa.
Kelly bars can be equipped with specially designed springs or pressure plates for shock absorbing purpose.
Material:
Kelly stub: 35CrMo, forging
Steel Pipe: Q355B (Outside sections), 35CrMo (inside sections)
Specifications
| Model | Outer Dia. （mm） | Section | Length of each section (m) | Compatible Drilling Rigs |
| KD343/4/9-14 | 343 | 3,4,5 | 9-14 | Bauer |
| KD355/3/4/5/9-14 | 355 | 3,4,5 | 9-14 | CMV |
| KD368/4/9-14 | 368 | 3,4,5 | 9-14 | Bauer |
| KD377/3/4/5/9-14 | 377 | 3,4,5 | 9-14 | MAIT |
| KD394/3/4/5/9-15 | 394 | 3,4,5 | 9-15 | Bauer, Soilemc |
| KD406/3/4/5/9-15 | 406 | 3,4,5 | 9-15 | Soilemc, IMT, CMV |
| KD419/3/4/5/9-15 | 419 | 3,4,5 | 9-15 | Casagrande, SANY,XCMG |
| KD440/3/4/5/6/9-15 | 440 | 3,4,5,6 | 9-15 | MAIT, SANY, XCMG |
| KD470/3/4/5/6/9-16.5 | 470 | 3,4,5,6 | 9-16.5 | Bauer, SANY |
| KD508/3/4/5/6/9-18 | 508 | 3,4,5,6 | 9-18 | Casagrande, XCMG, ZOOMLION |
| KD558/3/4/5/6/9-24 | 558 | 3,4,5,6 | 9-24 | Soilmec, SANY, SUNWARD |
| KD559/3/4/5/6/9-24 | 559 | 3,4,5,6 | 9-24 | Bauer, XCMG |
| Place of Origin: | Made in China |
| Brand Name: | Interlock |
| Model: | Friction |
| Material: | Q355B/35CrMo Steel Pipe |
| Compatible Brand: | XCMG, SANY, BAUER,SOILMEC, SUNWARD, CMV,MAIT |
| Certification: | ISO 9001/ COC/PVOC |
| Minimum Order Quantity: | 1 set |
| Packaging Details: | Wrapped with plastic film. |
| Delivery Time: | 7 working days |
Competitive Advantage
Top quality raw material
With Heat-treatment and strict QC process
With rich experience of manufacturing and exporting
Familiar with the rotary drilling rig in difference brand and model
