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QYZ Type Hydraulic Drilling Jar
QYZ hydraulic drilling jar integrates upward jarring with downward jarring,It is a hydraulic type drilling jar.which is used in all kirds of well conditicn,it generates up and down jarring force by lifting and releasing drill stems when the drilling tools were stuck and make sure drilling operation can go smoothly.This type drilling jar has some advantages like easy operation stable property safety and reliability maintenance etc.
We produce H2S resistance Jars, which adopt high quality import sulfur-resistance material.
| Model | OD mm(inch) |
ID mm(inch) |
Open full stroke mm（inch） |
connection API |
Max. working load KN |
Max. tensile load KN |
Max. working torque KN·m |
| QYZ121 | 121(4-3/4) | 57(2-1/4) | 635(25) | NC38 | 350 | 1364 | 18 |
| QYZ165 | 165(6-1/2) | 69(2-23/32) | 635(25) | NC50 | 770 | 2668 | 55 |
| QYZ203 | 203(8) | 76(3) | 635(25) | 6 5/8REG | 1300 | 4700 | 106 |
