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Interlocking Kelly Bar Friction Alloy Steel Kelly Bar for Excavator Hot Sale Bored Pile Foundation
  • Interlocking Kelly Bar Friction Alloy Steel Kelly Bar for Excavator Hot Sale Bored Pile Foundation
  • Interlocking Kelly Bar Friction Alloy Steel Kelly Bar for Excavator Hot Sale Bored Pile Foundation
  • Interlocking Kelly Bar Friction Alloy Steel Kelly Bar for Excavator Hot Sale Bored Pile Foundation
  • Interlocking Kelly Bar Friction Alloy Steel Kelly Bar for Excavator Hot Sale Bored Pile Foundation

Interlocking Kelly Bar Friction Alloy Steel Kelly Bar for Excavator Hot Sale Bored Pile Foundation

Place of Origin China
Brand Name APIE
Model Number Friction/Interlocking Kelly Bar
Product Details
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
Payment & Shipping Terms
Minimum Order Quantity
1 Set
Price
US$ 2000-10000 Set
Packaging Details
Nude packing
Delivery Time
30 days
Payment Terms
L/C,D/A,D/P,T/T,Western Union,MoneyGram
Supply Ability
30 Set/Sets per Month
Product Description

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 Kelly Bar Friction Alloy Steel Kelly Bar for Excavator Hot Sale Bored Pile Foundation 0Interlocking Kelly Bar Friction Alloy Steel Kelly Bar for Excavator Hot Sale Bored Pile Foundation 1


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.


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NO.108-4-1911 HUISHAN AVENUE,HUISHAN ZONE,WUXI CITY, JIANGSU PROVINCE,CHINA 214174
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