Two-action Drill Accelerator SZJQ
Two-action Drill Accelerator Type SZJQ can be stored energy by hydraulic spring. It should
be applied with Model QYⅡ Hydraulic Drilling Jar jointly. The drill collar and Hydraulic Jar
(below the Drill Accelerator ) can function an accelerated effect when jarring operates as for
making the stuck point gain more jarring force.
Meanwhile, it can decrease the damage of tremor produced by up-down jarring for drill tools above DrillAcxelertor.
Technical parameters
Model
| O.D mm/in | I.D mm/in | Connection API | Max.stroke mm/in | Tension of full Stroke kN/lbf f | Hole Seal Pressure Mpa/psi | Max.Working load kN/lbf | MaX.Torque kN·m/lbf·f | Overall Length mm/in |
SZJQ95 | 95 3-3/4 | 32 1-1/4 | NC26 | 178 7 | 178 7 | 35 5000 | 600 135000 | 4 3000 | 6651 261 7/8 |
SZJQ121 | 121 4-3/4 | 50 2 | NC38 | 178 7 | 178 7 | 35 5000 | 1100 247000 | 15 11000 | 7185 282 3/4 |
SZJQ203 | 203 8 | 70 2-3/4 | 6 5/8REG | 203 8 | 203 8 | 35 5000 | 2600 585000 | 30 22100 | 8000 315 |
SZJQ241 | 241 9-1/2 | 76 3 | 7 5/8REG | 254 10 | 254 10 | 35 5000 | 3500 787000 | 40 29500 | 7259 285 3/4 |
Above list some models, other models also can be supplied as follows:SZJQ165(6-1/2"),ZJQ197(7-3/4").