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Interlocking Friction Alloy Steel Kelly Bar For Excavator Bored Pile Foundation

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Interlocking Friction Alloy Steel Kelly Bar For Excavator Bored Pile Foundation

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Brand Name : APIE

Model Number : Friction/Interlocking Kelly Bar

Place of Origin : China

MOQ : 1 Set

Price : US$ 2000-10000 Set

Payment Terms : L/C,D/A,D/P,T/T,Western Union,MoneyGram

Supply Ability : 30 Set/Sets per Month

Delivery Time : 30 days

Packaging Details : Nude packing

Color : Black ,yellow or as required

Material : Q345B

Process : Interlocking,Friction and combined

Abrasion resistance : Strong

Kelly bar pipe : Germany imported or domestic high strength seamless

Usage : Deep foundations,building,bridge,high-speed rail etc

Service : Customized service drilling spare parts

Tube material : Seamless alloy steel drilling spare parts

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Product Description:

A Kelly bar is an essential element in hydraulic rotary drilling rigs, acting as a telescopic shaft that conveys both torque and crowd force from the rig to the drilling tool. This component is vital for achieving deep drilling, enabling the rig to penetrate greater depths. It plays a key role in numerous applications, such as foundation drilling, construction projects, and mining operations.

Kelly bars can be categorized into two primary types: friction kelly bars and interlocking kelly bars. Friction kelly bars derive their name from the frictional interaction between the rails of each segment. In contrast, interlocking kelly bars lack this frictional contact; instead, they feature drive ribs equipped with locking devices that enhance torque transfer to each section. Standard kelly bars are designed as fully lockable systems, incorporating a mechanical locking mechanism that connects each element to both the outer bar and the rotary drive.



名称

Name

型号

Type

重量

Weight(T)

 运输长度 钻孔深度

Transport

Length(mm)
Drilling Depth(m)

φ377 Friction Kelly Bar

 φ377×5×12 6.0 55
13300

φ377 Interlocking Kelly Bar

 φ377×4×12 7.0 13550 42

φ445 Friction Kelly Bar

 φ445×5×13 10.0 14510 55

φ445 Friction Kelly Bar

 φ445×5×15 11.5 16510 65

φ445 Interlocking Kelly Bar

 φ445×4×12 9.5 13645 40

φ445 Interlocking Kelly Bar

 φ445×4×15 11.5 16645 52

φ508 Friction Kelly Bar

 φ508×6×15 15.0 16585 81

φ508 Interlocking Kelly Bar

 φ508×4×12 10.5 13550 40




Features:


Kelly bars can be equipped with various standard features, such as:

  • Telescopic designs ranging from 2 to 6 elements for piling applications
  • Depth capabilities spanning from 10m to 110m
  • Torque transfer capacities varying between 80kNm and 500kNm
  • Options for both interlocking and friction kelly bars
  • High-quality seamless steel tubing
  • Six cams and drive ribs for enhanced functionality
  • A top flange for connecting the kelly bar to a kelly swivel
  • Upper and/or lower spring shock absorbers for added stability
  • A square kelly box for attaching drilling tools
  • A drive pipe that facilitates the transfer of torque and crowd force to the kelly bar

When selecting a kelly bar for a drill rig, it's crucial to prioritize bars constructed from high-quality steel with robust mechanical properties. Whether opting for new or used kelly bars, it's beneficial to seek those accompanied by origin and quality certifications to ensure their durability and reliability. Additionally, all kelly bars can be equipped with a noise-damping system designed to minimize disruptive, high-frequency sounds generated during operation. This system consists of a sound-absorbing material applied to the outer section of the kelly bar, which is safeguarded by steel plates.

Interlocking Friction Alloy Steel Kelly Bar For Excavator Bored Pile FoundationInterlocking Friction Alloy Steel Kelly Bar For Excavator Bored Pile Foundation


FAQ:
Q: How long is your delivery time?
A: Usually it is 5~10 days if the goods are in stock. Or it is 45 days if the goods are not in stock, it is according to quantity.


Q: What ‘s your terms of payment?
A: Payment<=100USD, 100% in advance. Payment>=1000USD, 50% T/T in advance balance before shipment. irrevocable LC at sight.



Product Tags:

Foundation Interlocking Kelly Bar

      

Bored Pile Interlocking Kelly Bar

      

Interlocking Kelly Bar

      
Quality Interlocking Friction Alloy Steel Kelly Bar For Excavator Bored Pile Foundation for sale

Interlocking Friction Alloy Steel Kelly Bar For Excavator Bored Pile Foundation Images

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