Insert Molded Magnet Assemblies

Magnet overmolding and insert molding around shafts, hubs, bushings, and carriers to reduce adhesive assembly risk.

Target Buyer:Best for programs where assembly alignment, adhesive reliability, or BOM reduction matters.

Capability Highlights

Mold magnet material directly around steel, brass, or plastic inserts
Reduce gluing, press-fitting, and secondary alignment operations
Control mechanical datum and magnetic surface in one engineered part

Typical Applications

Shaft-mounted sensor rotors
Motor hubs
Bearing sleeves
Custom magnetic assemblies

Engineering Focus

Insert cleaning, retention, knurling, and pull-out force assumptions
Mold flow around inserts and magnetic powder distribution
Datum design for both mechanical assembly and magnetic inspection

Key Evaluation Matrix

Metric	Typical Range	Why It Matters
Insert retention	Pull-out or torque resistance target defined by assembly	The molded magnet must stay locked to the shaft or hub through vibration and thermal cycling.

RFQ Checklist

2D/3D drawing, material target, magnetic pattern, and sensing datum
Operating temperature, vibration, media exposure, and lifetime requirement
Sample quantity, tooling target, annual forecast, destination, and PPAP needs
Insert material, surface treatment, pull-out force target, and assembly datum

Risk Controls

Brittle sintered magnet carried into a vibration-critical assembly: Review bonded magnet material and molded geometry when chipping, cracking, or adhesive failure can affect functional safety.
Magnetic pattern accepted without measurable criteria: Define flux density, pole count, angle error, sensing radius, concentricity, and inspection method before sample tooling.

Buyer FAQ

Can magnet material be molded directly onto a steel shaft?

Yes. Share the shaft material, surface condition, retention target, and drawing so insert retention and molding feasibility can be reviewed before tooling.

Related Resources

Insert molding and overmolding capability

Inquiry Email

[email protected]

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Include drawing, material, pole pattern, quantity, and destination.

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+8618857971991

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Direct response from our engineering team.

Metric

Typical Range

Why It Matters

Insert retention

Pull-out or torque resistance target defined by assembly

The molded magnet must stay locked to the shaft or hub through vibration and thermal cycling.

Risk Controls

Brittle sintered magnet carried into a vibration-critical assembly: Review bonded magnet material and molded geometry when chipping, cracking, or adhesive failure can affect functional safety.

Magnetic pattern accepted without measurable criteria: Define flux density, pole count, angle error, sensing radius, concentricity, and inspection method before sample tooling.