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Test Types    > Closure torque

closure torque test iconClosure Torque Testers

Closure torque or cap torque testing involves a range of tests for events designed into screw caps and unthreaded stoppers. It can include a measure of the turning force required to overcome safety features (e.g. child-resistance closures, CRC Types I and II), tamper resistance, and to open, or to secure a twist cap or lid. All these features are important, since ease of opening has to be proportional to purpose, including the ability of those with an impaired grip to open a container.

Related test types: Torque to Turn, Fastening Torque

Types of closure torque test

  • bridge torque (torque to break the joins with a tamper evident band in a roll-on pilfer-proof cap)
  • incremental torque (torque measured in very small steps, e.g. when there is an internal seal)
  • removal torque (against a screw thread)
  • reverse ratchet torque (in a CRC)
  • strip torque (run against and over or ‘cross’ the thread)

 

Visit our new dedicated site for closure testing, focused on the specific requirements for the quality testing of all types of closures.

See examples of our capabilities

Recommended Mecmesin Closure Torque Testers