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Q3 1/2~17-90 Manual Tongs Type DB
Q3 1/2~17-90manual tong type DB is used for marking up or breaking out the screws of drill tools and casing joint or coupling .It can be adjusted by changing latch lug jaws and handing shoulders.
Main Technical Parameters：
|
No.of Latch Lug Jaw |
No.of Hinge Pin Hole |
Size Range |
Rated Torque(kN.m) |
|
|
in |
mm |
|||
|
1# |
Ⅰ |
3 1/2~6 |
88.9~152 |
90 |
|
Ⅱ |
5 3/4~7 |
146~178 |
||
|
Ⅲ |
6 5/8~8 1/4 |
168~210 |
||
|
2# |
Ⅰ |
8~9 5/8 |
203~244 |
|
|
Ⅱ |
10 5/8~11 1/4 |
270~286 |
||
|
3# |
Ⅰ |
11 3/4~12 3/4 |
298~324 |
55 |
|
Ⅱ |
13 3/8~14 3/8 |
340~365 |
||
|
4# |
Ⅱ |
16~17 |
406~432 |
|