Product Overview & Application Scenarios
This unique tile shape offers exceptional flexibility in design and integration, making it an ideal choice for automation, electronics, medical devices, and magnetic coupling systems. Thanks to its high remanence and coercivity, this industrial grade corrosion resistant tile magnet delivers reliable, long-lasting performance even in the most challenging environments.
Customized lightweight high magnetic strength corrosion resistant Irregular Tile-Shaped Neodymium Magnet with its uniquely contoured design, fits closely to the curved surfaces of motor stators or rotors, significantly improving magnetic flux utilization and magnetic circuit efficiency. This leads to a substantial increase in torque density and overall motor performance. In energy-efficient home appliances, such as inverter air conditioners, refrigerators, and washing machines, this lightweight high performance corrosion resistance efficient Irregular Tile-Shaped Neodymium Magnet deliver concentrated magnetic force and fast dynamic response, greatly improving compressor start-up efficiency and frequency control precision.
Technical Specifications
|
Product Name |
corrosion resistant tile magnet |
|
Magnet Grade |
38H (Br ≥ 12.9 KGs, Hcj ≥ 11.4 KOe) |
|
Dimensions |
R15 × R10 × 5mm x 3 mm |
|
Tolerances |
±0.05 mm in length, width, and thickness |
|
Working Temperature |
≤ 120°C (high-temperature versions customizable) |
|
Density |
≥ 7.5 g/cm³ |
|
Surface Magnetic Field |
4200 Gauss ± 200 Gauss (measured with TM-801 Gauss meter, Japan) |
|
Magnetic Flux |
3.3 mWb (measured with fluxmeter) |
Surface Treatment & Coating Technology
▲Corrosion Sensitivity of NdFeB Materials
Due to their high rare-earth content and porous microstructure, NdFeB magnets are inherently vulnerable to oxidation and corrosion, particularly in humid or chemically aggressive environments.
▲ Purpose of Surface Treatment
To improve environmental resistance and extend operational lifespan, NdFeB magnets undergo standardized surface treatment and protective coating processes as part of the manufacturing workflow.
Common Industrial Coating Systems
Ni–Cu–Ni (Triple-Layer Nickel): Provides excellent corrosion resistance, uniform appearance, and strong adhesion; widely used for general industrial applications.
Epoxy Coating: Offers superior protection against moisture, salt spray, and chemical exposure; suitable for harsh environments.
Zinc Plating: A cost-effective solution for basic corrosion protection in dry or mildly corrosive conditions.
Appearance & Dimensional Inspection
● Surface Condition Check
Inspectors examine the magnet surface for visible defects such as cracks, chips, scratches, pits, pores, and edge damage that may affect performance or assembly.
● Coating Quality Evaluation
The coating layer is checked for uniform thickness, complete coverage, and proper adhesion. Common issues such as peeling, blistering, pinholes, discoloration, or exposed base material are carefully identified.
● Dimensional and Edge Assessment
Magnet edges and corners are reviewed to confirm proper chamfering or deburring, preventing sharp edges or structural weaknesses caused by machining.
Packaging & Transportation
Safe Packaging Process for Neodymium Magnets
- Assess magnetic force and select appropriate packaging method.
- Reduce magnetic interaction using spacing or shielding materials.
- Prevent direct magnet-to-magnet contact to avoid injury or breakage.
- Use durable packaging to withstand magnetic attraction during handling.
- Clearly mark all packages with safety and warning information.
FAQ
Q1. What kind of surface protection does this magnet use?
A multi-layer coating system is applied:
Outer layer: corrosion-resistant metal coating (e.g., Ni-Cu-Ni or Ni+Sn)
Optional upgrades: Laser surface alloying, Graphene-enhanced composite coating
The coating meets ASTM B633 and IEC 62321 standards for thickness and adhesion
Q2. What are common causes of magnet cracking or chipping?
Cracking or chipping may result from internal stress after sintering, improper machining, excessive clamping force during assembly, or impact due to the brittle nature of sintered NdFeB.
Q3. How can magnetic consistency be ensured in mass production?
Magnetic consistency is achieved through strict raw material control, stable sintering processes, uniform magnetization conditions, and comprehensive statistical quality control throughout production
Contact us to receive free samples and customized magnet solutions :
Phone/WhatsApp/WeChat: +86 13829120676
Email: Info@jinconn.com
Address: Xiaohe Industrial Zone, Daojiao Town, Dongguan City, Guangdong Province, China
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