This page lists the typical magnetic and physical properties of flexible rubber magnets.
Rubber magnets are low-cost, flexible and easily processed, with performance tuned by ferrite content and magnetization.
Key Specifications
| Specification | Value |
|---|---|
| Br remanence | 2.2 – 2.9 kGs |
| (BH)max | 1.0 – 1.7 MGOe |
| Max working temp | 70 – 80 °C (rubber limited) |
| Flexibility | Bendable, cuttable, punchable |
| Coercivity | High, multi-pole capable |
| Corrosion | Excellent, no coating needed |
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
Rubber Magnet Properties — FAQ
How strong are rubber magnets?
Rubber magnets are the weakest magnet type per volume — roughly 5–10% of NdFeB pull force — but their flexibility, low cost and ease of processing make them ideal for their applications.
What temperature can rubber magnets withstand?
Typically 70–80 °C due to the rubber or PVC binder. For higher temperatures, choose sintered ferrite instead.
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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