Dongying Kaihao Petroleum Equipment Co. Ltd._Type SB tongs
 
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Type SB tongs
 

Type SB tongs is a necessary for buck-on and buck-off all kinds of string pipes during the process of workover.

The fastening tongs size changed by replacement of fastening tongs and shoulders. 

Diameters range3.1/2-13.3/8inMax torque 75kN.m

Design and manufacture by API SPEC 7k.

 

Fastening tongs

Shoulder

Diameters range

Max torque

kN.m

in

mm

1#

1

3.1/2-4.1/8

88.9-104.78

 

 

75

2

4.1/-5

104.78-127

2#

1

4.1/4-5.1/4

107.95-133.35

2

5-5.3/4

127-146.05

3

6-6.3/4

152.4-171.45

3#

1

6.5/8-7.1/4

168.28-184.15

75

2

7.3/8-8

187.33-203.2

3

8.1/2-9

215.9-228.6

4#

1

9-9.5/8

228.6-244.48

 

55

2

10.5/8-10.3/4

269.88-273.05

5#

1

11.3/4

298.45

6#

1

12.3/4-13

323.85-330.2

 

40

7#

1

13.3/8

339.73

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