Compression moulded bonded NdFeB magnets achieve higher magnetic density than injection moulding by pressing NdFeB powder with binder under high pressure. They offer the strongest performance available among bonded magnets while still allowing good shape freedom.
Typical products are rings, discs and blocks for motors, sensors and magnetic couplings, often magnetized in multi-pole patterns.
Key Specifications
| Specification | Value |
|---|---|
| Process | Compression moulding (dry pressing) |
| Grades | Up to approx. 10 MGOe (anisotropic available) |
| Shapes | Rings, discs, blocks, arcs |
| Magnetization | Axial, radial, multi-pole |
| Sizes | OD 3 – 100 mm typical |
| Applications | Motors, sensors, couplings, triggers |
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
Compression Moulded Bonded NdFeB Magnets — FAQ
How strong are compression moulded bonded magnets?
Compression moulded bonded NdFeB reaches roughly 8–10 MGOe maximum energy product — stronger than ferrite and injection moulded magnets, though below sintered NdFeB.
What is the tolerance on compression moulded parts?
Dimensional tolerance of ±0.1 mm is standard; critical surfaces can be machined after moulding if required.
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.