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API 7K casing hydraulic power tong
The casing power tongs are extensively used in oil field for upper unloading the casing or casing screw thread during the operation of lower casing. The products are powered by hydraulic pressure, adopting the tilt cylinder type high pulling torque motor and mechanical type shift gear to make the tongs structurally simple and reliable, operationally safe and convenient. The tongs’ pressure, touque and number of turns can be monitored and controlled by computer by equipped torquemeter. Relevant national patents of invention have already achieved. The casing power tongs meet the requirements of SY/T5074 standard and API Spec 7K specifications.


| Model | TQ178-16Y | TQ340-35Y | TQ508-70Y | TQ178-16 | TQ340-35 | TQ356-55 | ||
| Size Range | mm | 101.6~178 | 114.3~340 | 244.5~508 | 101.6~178 | 114.3~340 | 114.3~356 | |
| in | 4~7 | 4~13 | 9~20 | 4~7 | 4~13 | 4~14 | ||
| Hydraulic System Max.Pressure | MPa | 18 | 21 | 20 | 18 | 18 | 17 | |
| psi | 2610 | 3045 | 2900 | 2610 | 2610 | 2400 | ||
| Hydraulic System Working Pressure | L/min | 110~160 | 110~170 | 110~170 | 110~160 | 110~160 | 110~160 | |
| gpm | 29.3~42.7 | 29.3~45.4 | 29.3~45.4 | 29.3~42.7 | 29.3~42.7 | 29.3~42.7 | ||
| Max.Torque | High | kN.m | 2.4~3 | 4.0~5.6 | 8.4~10.7 | 2.4-3 | 2.5-3 | 3.4-4.5 |
| Gear | ft.lbf | 1770~2210 | 2950~4130 | 6190~7890 | 1770~2210 | 1844-2210 | 2506-3319 | |
| Low | kN.m | 15~18 | 26~35.2 | 48.9~70.5 | 14.5-17.5 | 32-40 | 45-57.4 | |
| Gear | ft.lbf | 11060~13270 | 19175~25960 | 37244~52000 | 10694-12900 | 23600~29500 | 33190-42400 | |
| Speed | High | rpm | 54~79 | 57—95 | 26~43.6 | 54—79 | 60~86 | 52—76 |
| Gear | ||||||||
| Low | rpm | 9~13 | 9~15 | 46.6 | 9~13.1 | 3.6~5.3 | 3.9~5.6 | |
| Gear | ||||||||
| Overall Size | mm | 1500×760×780 | 1580×900×860 | 2080×1280×760 | 1450×760×740 | 1580×900×880 | 1590×950×900 | |
| in | 59×30×30.7 | 62.2×35.4×33.9 | 82×50.4×30 | 57×30×29.1 | 62.2×35.4×34.6 | 62.6×37.4×35.4 | ||
| Weight | kg | 560 | 760 | 1550 | 580 | 780 | 850 | |
| lb | 1230 | 1670 | 3410 | 1280 | 1720 | 1870 | ||
Product quality promise and after service
1. guarantee to keep the product in good repair
We promise to the customer: this product will be repaired free of charge within 6 mouths after sale due to the problem caused by the material or manufacturering and will be reached the functions described as our catalogue in normal operation condition. but the following problem are except from :
a) the problem are caused by using the parts fabricated by other company.
b) Ang problem are caused by self -refit.
We keep our promise,but our obligation is limited to repair or change the defective products or the appointed service facilitied. The dies,Roller, Friction disc, Lubrication, Surface coating etc are except from the repairing. Our company shall not reponsible for any indirect damages resulted by other cause.
Please promptly contact with us if the quality problem are detected so that the problem can be confirmed and corrected in good time by our company or by the authorized local dealer.
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