Mechanical Link Jar, through wireline manipulation, can be used to provide an upward or downward impact. The intensity of the jarring impact depends on the weight of the wireline stem above the jar, the stroke length of the jar, and the density of the well fluid.more...
Features : Screw Jack is stable robust and free from wear and tear.,The height adjustment is made through threaded spindles which are self-locking,Threads are trapezoidal