Bonded NdFeB PPS Magnets

High-performance rare-earth magnetic powder bound in a PPS (Polyphenylene Sulfide) resin matrix for extreme temperature and chemical resistance.

Target Buyer:Best for material engineers who need rare-earth magnetic strength but cannot compromise on chemical and heat resistance.

Capability Highlights

Combines NdFeB magnetic strength with PPS thermal stability (up to 200°C depending on grade)
Excellent resistance to automotive fluids, refrigerants, and oils
Maintains tight dimensional tolerances under thermal cycling

Typical Applications

Under-hood automotive sensors
EEV and refrigerant valve motors
High-temperature actuator rotors

Engineering Focus

NdFeB powder oxidation protection within the PPS matrix
High-temperature mold flow and shrinkage characterization
Irreversible flux loss validation at peak operating temperatures

Key Evaluation Matrix

Metric	Typical Range	Why It Matters
Continuous operating temperature	150°C to 180°C (depending on specific NdFeB powder and PPS grade)	PPS ensures the molded geometry does not deform, while the specified NdFeB powder ensures the magnetic field does not permanently demagnetize at heat.

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
Peak continuous operating temperature, fluid exposure profile, and magnetic flux target at temperature

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.

Product Gallery

Buyer FAQ

Why choose PPS over PA (Nylon) for bonded NdFeB?

PPS absorbs almost no moisture and withstands higher continuous temperatures and aggressive chemicals better than PA, making it the standard for under-hood and HVAC applications.

Related Resources

Bonded NdFeB Magnets

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Metric

Typical Range

Why It Matters

Continuous operating temperature

150°C to 180°C (depending on specific NdFeB powder and PPS grade)

PPS ensures the molded geometry does not deform, while the specified NdFeB powder ensures the magnetic field does not permanently demagnetize at heat.

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

Peak continuous operating temperature, fluid exposure profile, and magnetic flux target at temperature

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.