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ProductsMetal Insert Molds | Anti-Shift Overmolding Tooling | Jeancen Mold
3D CAD of an insert-molded plastic bracket with a thin metal insert and a magnet insert, designed for stable assembly and repeatable positioning.
Insert Molds

Metal Insert Molds | Anti-Shift Overmolding Tooling | Jeancen Mold

Insert molds are designed to prevent the insert float/shift during injection: robust locating + capture strategy, flow-aware gating, and part protection for repeatable CTQ assembly fit.

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Metal Insert Molds

Anti-shift overmolding tooling for stable insert positioning and repeatable CTQ fit.
Metal insert molding is a stability problem first, and a molding problem second. We focus on locating accuracy, mechanical capture, and flow planning to prevent insert float/shift and protect assembly interfaces.


Best Use Cases

  • Bushings, sleeves, threaded metal inserts
  • Structural metal/plastic integration
  • Inserts requiring tight CTQ alignment and torque fit


What We Control

  • Insert locating datum strategy (pins/nests/hard stops)
  • Anti-float / anti-shift mechanical capture
  • Gate direction planning to reduce insert force
  • Venting around insert zones to prevent burns/short shots
  • Ejection layout that protects insert and functional faces


Common Failure Modes & Fix Strategy

Insert float/shift

Fix: stronger capture + flow-aware gating + controlled support surfaces

Flash around insert

Fix: fit control at shutoffs + wear planning + alignment strategy

Bonding inconsistency

Fix: gating/contact planning + process window recommendations


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