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   Kelly Bar
Bauer Kelly Bar   【 Return 】

Bauer drilling rig kelly bar

We provide drilling rig kelly bars in the following rig models: BK25, BK28, BK40, BK48 and all other models.

\

\All weights listed in the date sheet are approximate values, the exact specifications depend on the substance.

Users can choose Kelly drive stubs at 130*130, 150*150, 200*200. Others can be customized.

Damping systems: We use a damping spring and rubber ring to reduce from each element impacted.

Rig’s Model

Kelly Bay

Domination

Number of Tube

Outer Pipe Length (m)

Drilling Depth

(m)

Transportation Length (m)

Total Weight

(ton)

 

 

 

 

 

 

 

BK12

 

 

 

 

 

Interlocking

3

5.75

13.089

7.25

1.85

3

6.75

16.089

8.25

2.21

3

7.75

19.089

9.25

2.57

3

8.75

22.089

10.25

2.93

3

9.75

25.089

11.25

3.29

4

6.545

20.835

8.045

2.2

4

7.545

24.835

9.045

2.52

4

8.545

28.835

10.045

2.84

4

9.545

32.835

11.045

3.16

4

10.545

36.835

12.045

3.48

 

 

Friction

4

6.545

20.535

8.045

1.95

4

7.545

24.535

9.045

2.25

4

8.545

28.535

10.045

2.55

4

9.545

32.535

11.045

2.85

4

10.545

36.535

12.045

3.15

 

 

 

 

 

 

BK15

 

 

 

 

Interlocking

3

7.3

17.204

8.8

2.6

3

8.3

20.204

9.8

2.925

3

9.3

23.204

10.8

3.25

3

10.3

26.204

11.8

3.575

3

11.3

29.204

12.8

3.9

4

8.16

26.394

9.66

3.84

4

10.16

34.394

11.66

4.62

4

12.16

42.394

13.66

5.4

4

14.16

50.394

15.66

6.18

 

 

Friction

4

8.16

26.394

9.66

3.55

4

10.16

34.394

11.66

4.2

4

12.16

42.394

13.66

4.85

4

14.16

50.394

15.66

5.6

 

 

 

 

 

 

 

 

BK20

 

 

 

 

 

Interlocking

3

8.4

20.65

9.9

3

3

9.4

23.65

10.9

3.3

3

10.4

26.65

11.9

3.6

3

11.4

29.65

12.9

3.9

3

12.4

32.65

13.9

4.2

3

13.4

35.65

14.9

4.5

4

9.4

30.99

10.9

4.6

4

10.4

34.99

11.9

5.1

4

11.4

38.99

12.9

5.6

4

12.4

42.99

13.9

6.1

4

14.4

50.99

15.9

7.1

4

15.4

54.99

16.9

7.6

 

 

 

Friction

4

9.4

30.99

10.9

4.25

4

10.4

34.99

11.9

4.7

4

11.4

38.99

12.9

5.15

4

12.4

42.99

13.9

5.6

4

14.4

50.99

15.9

6.5

4

15.4

54.99

16.9

6.95

\

Kelly Bar Classification and Structure

Locking kelly bar systems are designed for drilling hard materials, as well as when a crowd force application is needed. They come with drive rails designed with locking pockets on there length and the corresponding terminal joint locking guides.

\The purpose is to interlock each telescopic element to an inner following element in order to apply maximum torque and crowd force developed by the base rig. Due to this, the rotary table’s inner drive is equipped with locking pockets. 

When extracting the locking bar from the hole, a combination of lifting and rotating counterclockwise allows the telescopic element to unlock.

 

Locking bars typically come with 3, 4 and 5 telescopic element to unlock.

 

Drive rail steel quality: German imported steel palate

Drive stub steel quality: Special forged steel

Drive stub dimensions: 200*200, 150*150 or customized.

Outer pipe available diameter: 254, 292, 298, 305, 343, 368, 378, 470

Upper shock absorbed system:Damping rubber ring

Lower shock absorbed system: Damping rubber ring and damping spring.

Number of telescopic elements: 3, 4, 5, 6, other on request.

 

Friction Kelly bars transfer the torque to the drilling hole.  

The telescopic elements are advanced using a ‘friction contact ’ from each of the friction drive rails that run down the outside of each kelly bar.These drive rails are driven by rotary table and terminal joints of each successively larger diameter kelly bar. The terminal joint is a long piece on the inside and bottom of each kelly bars.

 

Frictional kelly bars typically are available with 3, 4, 5 or 6 telescopic elements. They are primarily used for deep piles in the medium hard soil conditions.

Drive rail steel quality: German imported steel palate

Drive stub steel quality: Special forged steel

Drive stub dimensions: 200*200, 150*150 or customized.

Outer pipe available diameter: 254, 292, 298, 305, 343, 368, 378, 470

Upper shock absorbed system:Damping rubber ring

Lower shock absorbed system: Damping rubber ring and damping spring.

Number of telescopic elements: 3, 4, 5, 6, other on request.

Copyright: Xuzhou Hengxing Jinqiao Machinery Technology Co., Ltd  Technical SupportAdministrator