Plastic closure machinery

Compare molding routes against the closure drawing and the work needed after molding.

Injection Molding Design Guide for Plastic Closures

Design plastic closures around thread release, draft and wall geometry, with a sourced stripping-versus-unscrewing comparison and a worked wall calculation.

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White screw closure on mold steel beside draft, wall, thread and release labels

Plastic closure machinery

Polypropylene Bottle Caps vs HDPE: Resin Properties

Compare PP and HDPE bottle-cap grades using producer data on hinges, ESCR and heat, with test-condition checks and the hidden cost of resin substitution.

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Open unbranded flip-top cap beside hinge, ESCR, heat and flow labels

Plastic closure machinery

Bottle Neck Finish Compatibility for Closure Production

Release the cap against a controlled bottle-finish drawing, with linked revisions, traceable samples and a defined response to any interface change.

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Generic closure production samples and inspection objects

Plastic closure machinery

Plastic Cap Compression vs Injection Molding

Choose a cap molding route by the accepted closure design and the complete production job, with matched evidence on resin, tooling and post-processing.

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