Vol 10 No 1: Twin Proximity Detection for Pull-Tab Cans

Convenience packaging with single serve easy-open (EZ) pull tab can ends have been available for many years but a growing trend in the food and beverage industry is to use different metals on the can end and the pull tab. The challenge that Consumer Packaged Goods (CPG) companies face for seal integrity is that the magnetic measurements of dissimilar metals and the orientation of the pull-tab may affect the readings as the can passes under a standard proximity inspection head.

To address and meet this growing challenge TapTone engineering developed a new inspection process. The new inspection process combines the inspections of two proximity sensors with an enhanced algorithm offering improved resolution across the lid profile.

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