Mechanical Fishing Jar Type JS

The mechanical fishing jar type "JS" is a up jarring tool that is installed close to the fish in the fishing operation. The down hole jarring blow is adjustable without any rig floor adjustments necessary prior to the run. The tool can work in high temperature or high pressure deep well, even if the seals are damaged, it can still continue to work. Type JS159 JS70 OD mm 159 178 ID mm 60 75 Connection API NC50 51/2FH Max Tensile Load mN 1.47 1.76 Max Working Torque kN.m 13 15 Overall Length (locked) mm 2391 2331 Working Stroke 181~185