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Foundation Construction Interlocking Kelly Bar 180-450kn Rated Torque Long Lifespan

Good quality Piling Bucket for sales
Good quality Piling Bucket for sales
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Foundation Construction Interlocking Kelly Bar 180-450kn Rated Torque Long Lifespan

China Foundation Construction Interlocking Kelly Bar 180-450kn Rated Torque Long Lifespan supplier
Foundation Construction Interlocking Kelly Bar 180-450kn Rated Torque Long Lifespan supplier

Large Image :  Foundation Construction Interlocking Kelly Bar 180-450kn Rated Torque Long Lifespan

Product Details:

Place of Origin: China
Brand Name: KonDaSin
Certification: ISO9001
Model Number: Rotary drilling kelly bar

Payment & Shipping Terms:

Minimum Order Quantity: 1 piece
Packaging Details: Wrapped with plastic film
Delivery Time: 20 working days
Payment Terms: T/T, L/C, Western Union
Supply Ability: 50 Set/Sets per Month kelly bar for rotary rig
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Detailed Product Description
Condition: New Use: Drilling Tool
Name: Friction Or Interlocking Kelly Bar Sections: 3,4,5
Size/diameter: Customized Color: Customized

High Strength Kelly Bar A Low Weight High Straightness High Wear Resistance

 

Kelly bars are featuring specific construction details:
• 2 - 5 fold telescopic construction for a depth range from 15 - 150 m
• the tubular kelly sections are manufactured from high-tensile steel to ensure minimum weight at adequate strength
• torque transfer capacity 120 - 480 kNm
• interlocking kelly bar type
• friction kelly bar type
• locks and wear-resistant drive rails (accordingly with rotary sleeve)
• Robust Terminal joints, that are the terminal part of each telescopic pipe, provided to transfer torque and crowd force to the kelly bar
• bottom shock absorbers
• standardised square kelly drive stub for connecting all types of drilling tools

 

Interlocking kelly bar is of great pressure transmission and good anti-contortion perfomance. There are 3 rigid parts between drilling pipes to transfer greater pressure from embedding cylinder. And even at the hard geologic condition it can transfer greater pressure and drill in. Stair key, organization transmission, the outside key is made by highly wear-resisting tempering steel. For soft fromations, (weak) weathered rock, hard strata construction.

 

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. Our kelly bar enjoys a low weight,high strength,high straightness of single bar,thinner tube,smaller inter-tube distance and good abrasion resistance.

2. Standard kelly bars are fabricated with a total of 6 drive keys on each section .The tubular kelly sections are manufactured from high-tensile steel to ensure minimum weight at adequate strength.

3. Heat treatment is widely used in the key parts such as drive key to improve wear resistance.

4. Small clearance and high-precision mating of the drill pipe ensure its good working order and service performance.

5. Fulfill the rotary drilling rig full torque operation.

 

Foundation Construction Interlocking Kelly Bar 180-450kn Rated Torque Long Lifespan

 

 

Contact Details
Kondasin International Co.,Ltd.
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