The super fishing jar type CSJ is a up jarring tool that utilizes a core piston to realize the jarring action. The down hole jarring blow is adjustable without any rig floor adjustments necessary prior to the run. Impact of each blow can be varied by simply changing the pull load. Type CSJ95 CSJ108 CSJ114 CSJ46II CSJ140 CSJ62II CSJ168 CSJ70II CSJ76II CSJ80II CSJ90 OD mm 95~229 LD mm 28~76 Max Stroke mm 305~330 Sealing pressure Mpa 20 Max Working torque kN.m 4~20 Max Working Load kN 200~1200 Max Tensile Load kN 500~2500 Overall Length(Locked) mm 3882~4328