Lake Petro TQ series of casing tongs are widely used for making-up or breaking-out of casings or pipes. The casing tong features high-efficiency, safety, reliability, labor-saving, and can ensure connection quality. Tong head is designed as open and is fitted with two jaws which can ensure reliable gripping. Air tyre clutch is utilized as gearshifting mechanism, so it is possible to change gear under running. The series of casing tongs can be configured with torque device to perform computer monitoring and managing on pressure, torque and rounds. The casing tong has been granted with National Invention Patent. The casing tongs are designed and manufactured according to SY/T5074 and API Spec 7K "Specification for Drilling Equipment"
Technical Parameter
| Model | TQ178-16 | TQ340-20Y | TQ340-35 | TQ178-16Y | TQ340-35Y | TQ508-70Y | TQ340-50 | |
| Size rang | mm | 101.6-178 | 101.6-340 | 139.7-340 | 101.6-178 | 101.6-340 | 244.5-508 | 139.3-340 |
| in | 4-7 | 4-133/8 | 51/2-133/8 | 4-7 | 4-133/8 | 95/8-20 | 51/2-133/8 | |
| Hydraulic system pressure ratigin | Mpa | 18 | 16 | 18 | 18 | 18 | 20 | 17.2 |
| Psi | 2610 | 2320 | 2610 | 2610 | 2610 | 2900 | 2494 | |
| Hydraulic system flow ratigin | L/min | 114 | 114 | 114 | 114 | 114 | 140-220 | 120 |
| gpm | 30.1 | 30.1 | 30.1 | 30.1 | 30.1 | 36.9-58.1 | 31.7 | |
| Max.torque | kN.m | 2.4-3 | 3.7 | 2.5-3 | 2.4-3 | 4.0-5.0 | 8.4-10.7 | 4 |
| ft.ibf | 1770-2200 | 2730 | 1844-2200 | 1770-2200 | 2950-3680 | 6195-7891.25 | 2950 | |
| kN.m | / | / | 6.0-7.5 | / | / | / | 11 | |
| ft.ibf | 4420-5530 | 8103 | ||||||
| kN.m | 16 | 20 | 35 | 15-18 | 27-30 | 48.9-70 | 50 | |
| ft.ibf | 11800 | 14750 | 25800 | 11060-13280 | 19900-22120 | 36063.75-51625 | 36851 | |
| RPM | rpm | 54-97 | 50-80 | 60-86 | 54-79 | 80-98 | 30.5-48 | 72.8 |
| rpm | 21-30 | 27.4 | ||||||
| rpm | 9-13.1 | 6-14 | 2.6-5.3 | 8.5-12 | 12-16 | 4.6-7.3 | 5.4 | |
| Overall dimensions | mm | 1540×760×740 | 1520×850×670 | 1540×900×860 | 1500×760×680 | 1560×900×850 | 2080×1280×760 | 1540×892×908 |
| in | 61×30×29 | 60×34×26 | 61×36×34 | 59×30×27 | 61×35×33.5 | 82×50×30 | 60×35×33 | |
| Weight | Kg | 580 | 560 | 780 | 570 | 780 | 1550 | 880 |
| Ib | 1280 | 1234 | 1720 | 1250 | 1720 | 3420 | 1940 | |
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.
