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    Insert Molding & Overmolding Services

    Insert molding and overmolding for parts that integrate metal hardware, a rigid substrate, a soft surface, sealing, insulation, or another material function.

    Multi-material medical and aesthetic molded components
    Program inputs
    Process
    Insert molding and overmolding
    Engineering path
    Drawing review → DFM → tooling → trials → production
    Press range
    80–850 tonnes; final press selection depends on the part and tool
    Location
    Tainan, Taiwan
    Company
    LongTeam Industrial Co., Ltd., founded in 1989

    Choose the process from the interface

    Insert molding places a component in the cavity before resin is injected around it. Overmolding adds material over a separate substrate. Selection starts with the required function, material relationship, production sequence, and test method.

    Control inserts and substrates

    DFM should define orientation, location, support, shutoffs, gates, vents, flash, heat exposure, contamination, and detection of missing or misplaced components.

    • Specify insert or substrate drawings
    • Define loading and detection
    • Agree on interface and cosmetic criteria

    Validate material and geometry together

    Grade-level compatibility, surface condition, wall geometry, mechanical interlocks, and service exposure influence the finished interface. Production-representative parts should be tested in the intended assembly.

    Plan production evidence

    Agree on component traceability, process records, insert detection, dimensions, appearance, functional tests, and reaction plans before production approval.

    Engineering passport

    The same engineering path, adapted to your program.

    See how analysis, tooling, and process learning stay connected from review through production. Findings and acceptance criteria are defined for each program.

    Illustrative DFM review scene with a translucent molded housing, technical drawing, and tooling geometry
    01 · DFM review

    Review geometry, material, gates, ejection, and tooling risks before steel is cut.

    In-house injection mold tooling with machined cavities
    02 · Production tooling

    LongTeam injection mold tooling, built to carry engineering decisions into production.

    Illustrative inspection and data-assisted quality scene for molded parts
    03 · Process insight

    Use dimensional and process data to identify variation and guide engineering decisions.

    FAQ

    Frequently asked questions

    Prepare for engineering review

    Prepare the right information for an engineering review.

    Share the drawing, material, expected volume, and critical requirements so LongTeam can clarify the project and quotation scope.