Power tongs casing TQ
Power tongs casing TQ is used to make up and break out for casing operation of the escapement casing oil wells with a diameter of ∅140～∅340 (51/2~133/8 in), also when changing gears it is possible to use for pipes with a diameter of ∅340～∅406 (133/8～16in) and when changing the jaws for pipe diameter ∅101～∅140 (4～51/2in).
The maximum torque on the housing of the power clamp 813 (32 in) is 35 kN·m (25 000 ft·lb).
Power tongs casing TQ designed and manufactured in accordance with API Spec 7K.
Description
Specifications
| No. | Dimensions | TQ340-35Y | |
| 1 | Grip pipes | mm | ∅140～∅340 |
| in | 51/2~133/8 | ||
| 2 | Maximum working pressure hydraulic system | MPa | 17.5 |
| psi | 2500 | ||
| 3 | Rated flow of hydraulic system | L/min | 227 |
| gpm | 70 | ||
| 4 | Maximum torque in low gear | N·m | 35000 |
| ft·bf | 25000 | ||
| 5 | Maximum torque at high speed | N·m | 8535 |
| ft·bf | 6295 | ||
| 6 | Rotation speed helusta | The maximum transmission rpm | 47 |
| Minimum transmission rpm | 11 | ||
| 7 | Dimensions | mm | 1358×820×993 |
| in | 53.5×32.3×39.0 | ||
| 8 | Weight | kg | 685 |
| lb | 1507 | ||