• interlocking kelly bar

interlocking kelly bar

Structural features: Stair key, organization transmission, the outside key is made by highly wear-resisting tempering steel 

 

Structural features: Stair key, organization transmission, the outside key is made by highly wear-resisting tempering steel

Main application: Soft formations, (weak) weathered rock, hard strata construction

Please contact:zhangmimin122@126.com

Product Details

Quick Details

Description

Structural features: Stair key, organization transmission, the outside key is made by highly wear-resisting tempering steel 

 

Structural features: Stair key, organization transmission, the outside key is made by highly wear-resisting tempering steel

Main application: Soft formations, (weak) weathered rock, hard strata construction

 

Outer Dia.(mm)

 Elements / Sections

 Retracted length(m)

 Max. depth(m)

305

3 or 4

5.75 – 10.5

12 – 36

343

3 or 4

7.3 – 14.15

15 – 48

355

4

6 – 13

18 – 43

368

3 or 4

8.4 – 15.4

18 – 52

377

4

11 – 15

40 – 48

394

3 or 4

9.7 – 18.7

21 – 64

406

4

8.5 – 16.5

29 – 62

419

3 or 4

10.7 – 19.7

24 – 68

440

2 or 4

13 – 15

18 – 65

470

3 or 4

10.7 – 19.25

24 – 64

483

4

10.5 – 16.5

31 – 67

508

4

7.5 – 14.5

25 – 53

559

3 or 4

13.75 – 21.75

30 – 72

Company Profile

Our company is a manufacturer of Rotary drilling rig's parts, with well-equipped production equipment and strong technical force. With a wide range, good quality and reasonable prices, our products are widely used in pile foundation construction industry. 

Our products are widely recognized and trusted by users and can meet continuously changing economic and social needs. We have exported our products to many countries and regions all over the world, especially Southeast Asia, the Middle East and Africa. 

If you are interested in any of our products, or wish to place a customized order, please contact us. We will do our best to meet your needs.

heavy machine

 

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