TJA Series Bucking Units for Casing and Tubing Coupling
The TJA series bucking unit for casing and tubing coupling is widely applied to well-servicing as well as casing and tubing manufacturing industries. Combining mature technology, state-of-the-art structure, and also high performance, this torque unit is definitely your best choice!
Our stroking unit is designed and made in accordance with API (American Petroleum Institute) standard, fit for fast and accurate makeup and breakout of connections like coupling and tubulars.
Thronging adopting up-to-date non-viscous clamping mechanism as well as precision torque measuring and controlling system, our bucking unit for casing and tubing coupling realizes computer monitoring, and also enables manual, semi-automatic or full-automatic operation.
The most important is that our oilfield bucking unit for casing and tubing coupling provides wide bucking range and large torque, and it has obtained a national patent of invention.
Technical Parameters| Model | ||||||
| Size range | mm | Φ60.33-Φ177.8 | Φ60.33-Φ244.48 | Φ60.33-Φ340 | Φ244.48-Φ508 | |
| inch | 23/8"-7" | 23/8"-95/8" | 23/8"-133/8" | 95/8"-20" | ||
| Tong torque | High gear | kN·m | 15 | 14 | 16 | 17.6 |
| ft·lbf | 11060 | 10320 | 11800 | 12980 | ||
| Low gear | kN·m | 25 | 40 | 45 | 50 | |
| ft·lbf | 18440 | 29500 | 33190 | 36870 | ||
| Revolving speed (rpm) | High gear | Single pump | 6.4-25.5 | 5.7-23 | 3.8-20.5 | 4.2-17.6 |
| Double pumps | 1-28 | 0.95-26 | 0.63-23.7 | 0.7-20.3 | ||
| Low gear | Single pump | 3.2-12.8 | 2.2-8.1 | 1.4-7.2 | 1.5-6 | |
| Double pumps | 0.53-16 | 0.37-9.3 | 0.23-8.3 | 0.25-7 | ||
| Center height | mm | 1100 | 1150 | 1150 | 1200 | |
| inch | 43.31 | 45.28 | 45.28 | 47.24 | ||
| Through-hole size | mm | Φ235 | Φ315 | Φ390 | Φ565 | |
| inch | 9.25 | 12.4 | 15.35 | 22.24 | ||
| Shifting cylinder stroke | mm | 800 | 800 | 800 | 800 | |
| inch | 31.5 | 31.5 | 31.5 | 31.5 | ||
| Max. pressure of hydraulic system | MPa | 20 | ||||
| psi | 2900 | |||||
| Flow of hydraulic system | Single pump | L/min. | 30-160 | |||
| gpm | 8-42 | |||||
| Single pump | L/min. | 5-185 | ||||
| gpm | 1.3-48.9 | |||||
| Pneumatic control system | Pressure | MPa | 0.4-1 | |||
| psi | 58-145 | |||||
| Air consumption | m3/h | 2 | ||||
| cfm | 1.2 | |||||
| Overall dimension | mm | 3210×1280× 1650 | 3220×1300× 1700 | 3250×1300 ×1700 | 3520×1450 ×1800 | |
| inch | 126.4×50.4×65 | 126.8×51.2×67 | 128×51.2×67 | 138.6×57×70.9 | ||
| Weight | kg | 8000 | 10800 | 10800 | 12000 | |
| lb | 17600 | 23760 | 23760 | 26400 | ||
