Customization: | Available |
---|---|
After-sales Service: | 24/7 |
Warranty: | 12 Months |
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BOBAN QJZ drilling jar is fully mechanically operated and is an integrated unit that provides both up and down jarring operation. As part of the drill stem, its up and down jarring load range is wide that can be adjusted on repair station or spot. Special flexible joint can effectively reduce the flexible stress of drilling jar, so it is prior employed in vertical well, deep well, complicated well and directional well.
Model | OD mm |
ID mm |
Connection API |
Max. Tensile Torque(KN) | Max. Work Torque kN.M | Pump opening area cm² | Up Stroke mm |
Down Stroke mm |
Overal Length for Locking Position mm |
QJZ95 | 95 | 28 | 27/8REG | 600 | 5 | 32 | 200 | 200 | 5800 |
QJZ108 | 108 | 36 | NC31 | 700 | 10 | 38 | 203 | 203 | 6404 |
QJZ121 | 121 | 51.4 | NC38 | 1400 | 10 | 70.8 | 200 | 200 | 6343 |
QJZ159 | 159 | 57 | NC46 | 2200 | 15 | 115 | 142 | 172 | 6517 |
QJZ165 | 165 | 57 | NC50 | 2200 | 15 | 115 | 142 | 172 | 6517 |
QJZ178 | 178 | 57 | NC50 | 2200 | 15 | 132 | 149 | 168 | 6570 |
QJZ203 | 203 | 71.4 | 65/8REG | 2500 | 20 | 175 | 145 | 178 | 7234 |
QJZ229 | 229 | 76 | 75/8REG | 3000 | 25 | 240 | 203 | 203 | 7753 |