Planned preventative maintenance (PPM) activities identified that three sets of sealing jaws installed on the site’s flow wrapping machines were nearing end-of-life based on wear and performance data. To maintain optimal throughput and seal integrity, replacement of these assemblies was required.

The maintenance window also presented an opportunity to implement design improvements. Specifically, the engineering team aimed to simplify mechanical adjustment and enhance seal consistency by modifying the jaw assembly design.

The site engineering team engaged Perfect Seal, an existing supplier with proven capability in manufacturing precision sealing components for multiple equipment platforms. The scope included the supply of three complete sealing jaw assemblies for three independent flow wrapping machines.

A key design requirement was the integration of the site’s preferred cone screw adjustment mechanism within the jaw housing.

This modification was intended to:

• Improve fine adjustment of knife-to-anvil alignment
• Reduce setup time during changeovers
• Increase repeatability of cut-and-seal performance
• Minimise operator intervention and adjustment variability

Engineering drawings and dimensional specifications were reviewed to ensure compatibility with existing machine interfaces and operating parameters.

Perfect Seal, having previously delivered engineered components to the facility, was commissioned to manufacture the replacement sealing jaws incorporating the requested design modifications.

The resulting assemblies met the mechanical and performance requirements while enabling simplified fine-tuning of sealing parameters, supporting improved operational efficiency and consistent seal quality across the three flow wrapping lines.