Tamper Evident Cap Verification

Consumers take tamper bands for granted – they are trusted to work. But the high speeds and the nature of plastic packaging sometimes causes errors in the screw top application process. The TamperProof© System checks for any problems with the tamper-evident cap on screw-top containers. It will detect:

  • High Closure
  • Missing Closure
  • Cocked Closure
  • Broken Integrated Tamper-Evident Band
  • Closure Color/Graphics Pattern

The TamperProof© system uses four side cameras to verify that the tamper-evident band is:

  • Properly installed
  • Is not skewed
  • Is properly torqued.

In cases where multiple caps are used the system will verify that the correct cap is on the container. It performs all verification and inspection through non-contact means, requiring no special handling of the product and no stopping of the product flow on the conveyor.


  • User-friendly GUI with an easy-to-use interface to configure and load the container inspection recipes, minimizing changeover time
  • Store and manage hundreds of SKU inspection recipes
  • Secure access in the form of multiple log-ins and passwords
  • Color touch-screen monitor
  • Maintain production speeds up to 900 per minute
  • Non-contact inspection and no slowing of the production line
  • No special container handling needed, other than to ensure that the cap areas are appropriately spaced on the conveyor as they pass through the TamperProof system
  • Inspection tools include:
    • Pattern-finding to match flavor graphics, product graphics, logos, or other features
    • 1D and 2D barcode reading to identify the cap
    • Tools to measure cap placement and skew
    • Any number of vision tools can be used for inspection
  • Event logging to create an audit trail for log-ins, log-outs, container SKU changes, and recipe configuration changes
  • Reporting of session (run) statistics at the end of a product run
  • Data analytics support

  • Biometric (fingerprint) security access
  • Color or monochrome camera for lid or cap inspection
  • Wash-down IP67 construction with air conditioner for electronics
  • Fool-proof height adjustment mechanism for the top camera
  • Singulator to ensure proper container spacing to provide 360 degree inspection of the closures
  • Centering device to guide the container through the center of the inspection point
  • Multiple rejecter options
    • Air blow-off
    • Pneumatic “punch”
    • Guide to another conveyor or reject table for re-work
  • PLC for reject monitoring and line control