Product Overview & Application fields
Zinc-coated cylindrical magnets combine high magnetic strength with compact geometry, delivering reliable performance where strong magnetic force is required in limited space. The Zn coating provides basic corrosion protection and improves handling durability without affecting magnetic properties.
These magnets are widely used in electronic assemblies, sensors, and miniature motors, where precise dimensions and stable magnetic output contribute to consistent performance. They are also applied in telecommunications equipment, supporting magnetic positioning and functional components in antenna and signal-related systems.
Technical Specifications
|
Product Name |
zinc coated cylindrical magnets |
|
Magnet Grade |
N35 (Br ≥11.8kGs, Hcj ≥12 kOe) |
|
Dimension |
N35-D5*20 |
|
Dimensional Tolerance |
+/-0.05 |
|
Operating Temperature |
≤80°C (High-temp versions available) |
|
Density |
≥7.5 g/cm³ |
|
Surface Magnetic Field |
4,300 Gs |
|
Magnetic Flux |
2.0 mWb (Fluxmeter-tested) |
Manufacturing Process
Powder preparation and sintering to form high-density NdFeB magnet blanks with optimized magnetic properties.
Precision machining (cutting and grinding) to achieve accurate cylindrical geometry and tight tolerances.
Surface treatment and zinc coating to provide corrosion protection with controlled thickness and uniform coverage.
Pulse magnetization to ensure full and stable magnetization in the specified direction.
Final inspection and testing, including dimensional checks, magnetic performance verification, and coating integrity evaluation.
NdFeB Magnet Customization Services
Application-driven customization of size, shape, and magnetic properties
Adjustable magnetization orientation to match assembly and functional needs
Coating solutions designed for corrosion resistance, wear protection, and environmental conditions
Customized packaging solutions to ensure safe handling and transportation
Laser marking for logos, batch numbers, and product traceability
After-Sales Support
Responsive technical consultation during product integration
Performance testing support including pull-force and magnetic flux inspection
Continuous quality monitoring and improvement for repeat orders
Fast issue response and corrective action support
Safe Handling & Packaging Procedure
Safety and product integrity are addressed throughout packaging, transportation, and application.
Handling Instructions:
- Strong magnetic attraction requires controlled handling to avoid injury
- Brittle nature requires protection against shock and impact
- Protective measures are recommended during assembly and handling
- Avoid high-temperature or demagnetizing environments
Packaging & Transportation Process:
- Separation based on size and magnetic strength
- Shock-absorbing packaging using foam, trays, or dividers
- Clear magnetic product labeling on outer cartons
- Magnetic shielding packaging available based on transportation method
FAQ
Q: What is the typical lead time for custom NdFeB magnets?
A: Lead time depends on complexity, tooling, coating, and quantity. Standard lead times typically range from sample development to mass production upon approval.
Q: How do you handle high-humidity or outdoor applications?
A: High-coercivity grades combined with enhanced corrosion-resistant coatings and environmental testing are recommended for such conditions.
Q: What causes coating failure and how can it be avoided?
A: Common causes include poor surface preparation, mechanical damage, and thermal cycling. Proper process control and coating selection are critical.
Contact Us：
Phone/WhatsApp/WeChat: +86 13829120676
Email: Info@jinconn.com
Address: Xiaohe Industrial Zone, Daojiao Town, Dongguan City, Guangdong Province, China.
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