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Seal Quality Inspection with Airborne Ultrasound Technology

Airborne ultrasound is a referenced technology in the new USP <1207> Chapter Guidance as a deterministic test method for seal quality testing, is an ASTM Test Method F3004 and FDA Recognized Standard for seal quality integrity testing.

A pouch seal is a structural element that joins flat film material, and a component designed to close a pouch airtight. Traditional test methods e.g. peel strength or burst, can measure the joint strength of the seal, using destructive methods. However, this type of testing is often unreliable. A strong seal is not necessarily an airtight one, and the flow of gas or liquid through the seal (leak) is just one type of seal defect. As such, there is a fundamental challenge to any leak testing method, whether it is a fish tank-bubble, vacuum differential, or manual visual method, none of these methods detect non-leaking seal defects.

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Seal Sensor PQX

The Seal-Sensor PQX is a fully automated complete handling system and pouch seal inspection solution. It features a built-in conveyor that can be easily integrated into a production line. The technology is PTI’s Seal-Sensor airborne ultrasound to automatically scan the final pouch seal online at high speed. Seal-Sensor technology is an ASTM Test Method F3004 and a recognized FDA consensus standard for seal quality inspection.

A rapid linear scan of the pouch seal provides immediate seal check/verification of seal quality inline at high outputs. Test result data is produced in seconds.

Seal-Sensor PQX Benefits:

  • 100% pouch seal inspection
  • Easy integration into production lines
  • Adjustable for different size pouches
  • Manual load or robotic pick & place
  • Built-in reject chute

Designed for Easy Integration

The Seal-Sensor PQX is a plug and play solution for inline pouch seal quality testing. This easy to install system features a small footprint, with full screen HMI to display test result data as pouches are scanned.
Inspection rates range up to 350 mm/sec. A built-in reject chute quickly removes defects from the line, and built-in stack light provides easy identification of pass/rail results.