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Bauer Interlock Kelly Bar is composed by interlock Kelly bar and full multi-interlock Kelly bar.

For this type of Kelly bar , the first section is 3-keys interlock type, inner  few sections are multi-type step keys , the outer keys are three sections three set of conca

Name:Bauer Interlock Kelly Bar
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Bauer Interlock Kelly Bar is composed by interlock Kelly bar and full multi-interlock Kelly bar.

For this type of Kelly bar , the first section is 3-keys interlock type, inner  few sections are multi-type step keys , the outer keys are three sections three set of concave and convex form .

Combined-interlock Kelly bar is based on domestic rig configuration and condition demand, combined with the home and abroad advanced manufacture technology, supporting  domestic and foreign rotary piling rig.

This type Kelly bar have been applied for patent, the patent No. is 201420542676.9


序号

No.

钻杆外径

   OD

  节数

 Section

加压键形式

Way of crowding

单节长度

Length of per section(m)


参考深度

Drill depth


额定扭矩

Torque

1

¢440

3

4

5

多点加压(interlock-type

9 - 15

24 – 55

220-260

2

¢470(482)

3

4

5

多点加压(interlock-type

9 - 15

24 – 70

230-280

3

¢508

3

4

5

多点加压(interlock-type

9 – 15

24 – 70

260-360

4

¢530(540)

3

4

5

多点加压(interlock-type

9 – 18

24 – 85

360-420

5

¢575(580)

3

4

5

多点加压(interlock-type

9 – 18

24 – 85

420-460

6

¢630

3

4

5

多点加压(interlock-type

9 – 20

24 – 92

  460-550