Twin Proximity Sensor

Can Inspection > Online Can Inspection > Leak Inspection > Twin Proximity Sensor
  • Line speeds up to 2,000 cpm, detection accuracy to 0.005 in (0.127mm)
  • Adjustable Signal profile capture window for improved signal processing
  • Four algorithms to calculate Profile, Height, Cocked and Contour
  • Programmable gain and offset parameters for improved inspection range
  • User Interface Required: Can be used with a T550 or Pro Series interface

Twin Proximity Technology

Proximity Technology has been used for decades to detect low vacuum in food cans. However, recent widespread use of bi-metal Easy Open (EZO) ends (steel ends with aluminum pull-tab) has presented a challenge for the traditional technology. The TapTone Twin Proximity Sensor is designed to detect and reject low vacuum and no vacuum steel cans with EZ-Open can ends (pull-tabs) at production speeds up to 525 feet per minute.

The new twin proximity sensor combines the inspections of Proximity-1 and Proximity-2 with an enhanced algorithm offering improved resolution across the lid profile. TapTone offers the twin proximity sensor on both the PRO Series and T550 Systems. (Not supported on HMI)

Features

  1. Line speeds up to 2,000 cpm, detection accuracy to 0.005 in (0.127mm)
  2. Adjustable Signal profile capture window for improved signal processing
  3. Four algorithms to calculate Profile, Height, Cocked and Contour
  4. Programmable gain and offset parameters for improved inspection range
  5. Auto-tracking reject limits within the controller accommodate temperature and pressure fluctuations during production​​
SPECIFICATION DESCRIPTION
Operating Speed Up to 2,000 containers per minute
Detection Accuracy 0.005 in (0.127mm)
Conveyor Rail Setting 2mm to 5mm for best inspection results
Can Spacing None required for inspection
Vacuum Resolution One to two inches of vacuum. Accuracy may vary depending on lid stock thickness and vacuum range. Mechanical line conditions may affect the resolution performance.​

Detects low vacuum and no vacuum steel cans with bi-metal EZ-open can ends (pull-tabs) at production line speeds up to 525 feet per minute.