DFM, mold design, sample tooling, and NRE planning for custom injection molded magnet programs.
Custom Magnet Tooling and NRE is most relevant when best for OEM teams that need a custom magnet part rather than an off-the-shelf catalog magnet. Typical oem capability programs include New sensor rotors, Custom motor rotors, and Valve actuator magnets, so the early review should confirm dFM review of wall thickness, draft, insert retention, and sensing datum.
Before sample tooling, align on 2D/3D drawing, material target, magnetic pattern, and sensing datum and operating temperature, vibration, media exposure, and lifetime requirement. The first acceptance check is tooling release package (Drawing, material, magnetization, inspection, and sample plan), because injection molded magnets are tooling-led projects; unclear inputs create costly revision loops.
The main risk is brittle sintered magnet carried into a vibration-critical assembly; control it by review bonded magnet material and molded geometry when chipping, cracking, or adhesive failure can affect functional safety. Also review validation handoff and magnetic pattern accepted without measurable criteria before moving from prototypes to repeat production.
| Program Metric | Typical Range | Procurement Value |
|---|---|---|
| Tooling release package | Drawing, material, magnetization, inspection, and sample plan | Injection molded magnets are tooling-led projects; unclear inputs create costly revision loops. |
| Validation handoff | Operating temperature, vibration, media exposure, and lifetime requirement | It connects Custom Magnet Tooling and NRE design intent to sample approval, lot inspection, and production sourcing decisions. |
The mold and magnetization approach are custom to geometry, insert design, material flow, and magnetic pattern, so production-quality samples require dedicated tooling work.
Include 2D/3D drawing, material target, magnetic pattern, and sensing datum, operating temperature, vibration, media exposure, and lifetime requirement, and sample quantity, tooling target, annual forecast, destination, and PPAP needs. If the part is tied to automotive or safety-critical sensing, also include PPAP, traceability, and magnetic test expectations.
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Include drawing, material, pole pattern, temperature, compliance, and PPAP needs.
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