The type B manual tongs
The type B manual tongs are designed and manufactured in accordance with the API Spec 7K《Specification for Drilling and Well Servicing Equipment》and the National Standard for the Petroleum Gas Industry SY/T 5035《Elevator links ,elevators and tongs》which is a useful tool applied to make up and break out drill pipes ,coupling hoop of the drill pipe, joint, casings, casing hoops etc. When raise drill tool up and fall it down. Changing the latch lug jaws and handling shoulders can adjust the handing size of the tongs. According to the different handing size torque’s tongs can be ascertain.
Main Technical Parameters:
Type: Q3 3/8-12 3/4/75
|
Latch Lug Jaw No. |
Gripping Range |
Torque max. |
||
|
in |
mm |
kN·m |
||
|
5a |
1 |
3 3/8—4 1/8 |
85.7~104.8 |
55 |
|
2 |
4 1/8—5 1/4 |
104.8~133.4 |
||
|
5b |
1 |
4 1/4—5 1/4 |
108~133.4 |
75 |
|
2 |
5—5.3/4 |
127~146.1 |
||
|
3 |
6—6 3/4 |
152.4~171.5 |
||
|
5b1 |
1 |
5 1/4—5 3/4 |
133.4~146.1 |
|
|
2 |
6—6 5/8 |
152.4~168.3 |
||
|
3 |
6 3/4—8 |
171.5~203.2 |
||
|
5c |
1 |
6 5/8—7 3/8 |
168.3~187.3 |
|
|
2 |
7 3/8—8 |
187.3~203.2 |
55 |
|
|
3 |
8 1/2—8 5/8 |
215.9~219.1 |
||
|
5d |
1 |
8 1/2—9 5/8 |
215.9~244.5 |
|
|
2 |
10 5/8—10 3/4 |
269.9~273.1 |
||
|
5e |
1 |
11 3/4 |
298.5 |
|
|
2 |
12 3/4 |
323.9 |
||
|
5e3 |
1 |
13 3/8 |
339.7 |
|
