Spang Jar

The force required downhole to manipulate tools and sever shear pins is generated by the impact of the Spang Jar.

Jar impact is mainly affected by speed of movement, applied stem weight above the Jar, stroke length and deviation. Peak Spang Jars are available in various stroke lengths, diameters and connection options to suit the customers’ needs.


  • To provide upward and downward impact in conjunction with the toolstring weight and wireline speed

Features & Benefits

  • Supplied in a range of sizes and stroke lengths to suit most applications
  • Third-party proprietary connections available to suit customer requirements

Product Code: 127