Eco friendly grade strong magnetic force rare earth Black Epoxy coated Axial Neo magnets

2025-7-17

1. Product Overview

Customzied eco friendly grade strong magnetic force heat resistant rare earth Black Epoxy coated compact Axial Neo magnets are annular permanent with a closed magnetic circuit structure. They are widely used in applications requiring uniform magnetic fields or axial/radial magnetism. With excellent magnetic properties, structural stability, and machining adaptability, they are key components in high-precision elector mechanical systems, inductive devices, and electronic assemblies.

2. Technical Parameters

3. Manufacturing Process

The manufacturing process of this Eco friendly grade strong magnetic force self-adhesive high torque rare earth Black Epoxy coated Axial Neo magnets are as following:

- Pulse Plating: Uses pulsed current control to create denser and more uniform metallic crystal structures. Compared to traditional plating, this significantly improves coating adhesion and corrosion resistance.

- Laser Sealing: High-precision laser scanning seals micro-cracks and pores on the coating surface, improving resistance to moisture, salt spray, and harsh environments. Corrosion resistance can exceed 1000 hours.

- Parylene Vacuum Coating: A conformal polymer layer applied by vapor deposition (CVD). It is pinhole-free, highly insulating, biocompatible, and chemically resistant. Widely used in medical and clean environments. 

4. Appearance & Dimensional Inspection Standards

- Manual measurement using micrometer/caliper

- Visual inspection under 800–1200 lumens

- 2D optical inspection for non-standard shapes 

- CCD auto-sorting and full appearance/dimensional check

- Magnetic flux testing to ensure magnetic consistency 

5. Reliability Testing

-Thermal Shock Cycling Test:

Evaluates the structural integrity and coating adhesion of magnets under extreme temperature fluctuations.

- Magnetic Performance Consistency Test:

Uses a Gaussmeter to verify the uniformity of surface magnetic field, remanence, and magnetic flux across different production batches, ensuring minimal performance deviation that could affect final assembly or operational stability.  

-Tensile/Adhesive Strength Test:

Applicable to applications involving adhesive bonding or magnet assemblies. A tensile testing machine measures the maximum force required to peel the magnet off its bonded substrate, ensuring reliable adhesion against vibration or aging effects.

6. Packaging Process

Items with cosmetic or dimensional defects are eliminated through strict inspection

Qualified units are magnetized in batches and arranged in order

Packed per client specifications with customized labeling

Each unit is vacuum-packed with magnetic shielding and shockproof padding for enhanced protection 

7. Usage Precautions

- Avoid impact or dropping; NdFeB is brittle

- Use sliding motion to separate to avoid pinching

- Install with correct polarity to ensure device stability

- Store away from heat, humidity, and corrosive environments

- Keep away from sensitive electronics (pacemakers, hard drives, IC cards)

8. Customization & Services

- Customizable parameters: dimensions, shape, magnetization direction, coating thickness

- Optional laser marking for logos or serial numbers

- Support for sample testing, pull-force testing, and packaging solution.

We are delighted to provide complimentary customized magnet solutions designed to meet your unique requirements. 

Contact Us:

Phone: +86 18038225892
Email: helen@jinconn.com
Address: Xiaohe Industrial Zone, Daojiao Town, Dongguan City, Guangdong Province, China