Description
KHT and TQ series casing power tongs are used for making up or breaking out casings. Tong head is designed as open and is fitted with two jaws which can ensure reliable gripping. Air type clutch is utilized as a gear shifting mechanism, so it is possible to change gear under running. TQ 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.
Specification:
| Model | TQ178/16 | TQ340/35 | TQ356/55 | TQ178/16Y | TQ340/35Y | TQ356/55Y | TQ508/70Y | TQ610/60Y | TQ340/85Y |
|---|---|---|---|---|---|---|---|---|---|
| Size range (inch) | 4"-7" | 4 1/2"-13 3/8" | 4 1/2"-14" | 4"-7" | 4 1/2''-13 3/8" | 41/2"-14" | 9 5/8"-20" | 9 5/8"-24" | 4 1/2"-13 3/8" |
| Max working pressure (Mpa) | 18 | 18 | 16.6 | 18 | 20 | 20 | 20 | 18 | 18 |
| working flow Rate (l/min) | 110-160 | 110-160 | 110-140 | 110-160 | 110-170 | 110-170 | 110-170 | 120-180 | 110-170 |
| Air pressure (Mpa) | 0.5-0.9 | 0.5-0.9 | 0.5-0.9 | / | / | / | / | / | / |
| Max torque (Kn.m) | 16 | 35 | 55 | 16 | 35 | 55 | 70 | 60 | 85 |
| Jaw speed (RPM) | 9-79 | 3.5-86 | 4-70 | 9-79 | 8-90 | 4.8-61 | 4-43.6 | 5-45 | 3.2-45 |
Drawing:
| Item | Part name and description |
|---|---|
| 1 | Break out |
| 2 | Spring hanger assembly |
| 3 | Hanging bracket |
| 4 | Hydraulic motor |
| 5 | Hydraulic torque measuring device |
| 6 | Safety door |
| 7 | Reverse pin |
| 8 | Brake band |
| 9 | Transmission gear case |
| 10 | Jaw assembly |
| 11 | Speed-measuring gear |
| 12 | Hydraulic system |
| 13 | Shifting mechanism |
| 14 | Support foot |
| 15 | Torque cylinder |
