Ultrasonic Pouch Sealer Gives Double Seal Strength

From: Packaging Strategies

A new ultrasonic pouch sealing system by Sonics (sonics.com) features a seal pattern that nearly doubles seal strength on retort pouches. Focusing on sealant compression and rate of evacuation, the technology reduces film stress and increases seal strength by keeping greater quantities of sealant in the bond area.

For applications where maximum seal strength is required, Sonics offers new technology wherein the tools are engineered to reduce stress by creating a specific flow path that restricts the movement of the sealant during the weld process.

In a recent independent study done on retort pouches, Sonics’ new pattern produced bond strengths exceeding both competitive ultrasonic seals as well as heat seals. The new Model T201WD pouch sealing system also introduces two industry firsts: the first self-leveling tooling and the first easy access tooling door for ease of maintenance.

The system features a proven rack and pinion design with dual air cylinders to provide high clamp forces and fast cycle times.  Designed with compact dimensions and mirror-image heads for close centerline spacing in duplex applications, there are mounting configurations available to fit most rotary and in-line pouch filling machines.

Additional features include integrated cooling of ultrasonic components and IP-65 rating for wash-down environments.

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