Bonded NdFeB production starts with NdFeB alloy powder, which is blended with polymer binder, then moulded by injection or compression and finally magnetized.
Process control focuses on powder-to-binder ratio, moulding pressure and temperature, and magnetization fixture design to achieve consistent pole patterns.
Key Specifications
| Specification | Value |
|---|---|
| Steps | Alloy powder → Blend with binder → Injection/Compression mould → Sinter/Set → Magnetize → Inspect |
| Moulding | Injection or compression per design |
| Quality | Dimension, density, flux pattern inspection |
| Lead time | 20 – 30 days with tooling |
All magnets are produced to order. Please provide grade, dimension (or drawing), magnetization direction, coating and quantity for quotation. Email sales@polemagnet.com or use the inquiry form — we reply within 24 hours.
FAQ
Bonded NdFeB Production Flow — FAQ
Why is tooling required for bonded magnets?
Injection and compression moulding both need a steel mould matching the magnet geometry. Mould cost is moderate and reused over the production life.
What QC checks are done on bonded magnets?
We check dimensions, density, magnetic flux and the magnetization pattern. Multi-pole parts are verified with a Gauss probe on the pole surface.
Do you provide free samples for testing?
Yes, sample orders are welcome. Send your drawing or specification together with the intended application so our engineers can recommend the correct grade, magnetization direction and coating before we prepare samples.
Can the factory produce to my drawing with special tolerances?
Yes. We machine, grind and inspect to customer drawing tolerances. For sintered NdFeB the standard machining tolerance is ±0.05 mm and can be tightened to ±0.02 mm with diamond grinding where the geometry allows.
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Send your drawing, grade, magnetization direction and quantity. Our engineers will reply with a quotation within 24 hours.