Product Overview
Introducing our nickel plating round countersunk magnets, designed for compact size, strong magnetic force, and excellent durability. Featuring a premium nickel coating for superior corrosion resistance, this nickel plating round countersunk magnet delivers stable performance in electronics, medical devices, sensors, and magnetic attachments. Ideal for precision applications, this nickel plating round countersunk magnet ensures reliable strength and long-lasting quality, making it perfect for advanced engineering and innovative product designs.
Technical Specifications
|
Product Name |
nickel plating round countersunk magnets |
|
Magnet Grade |
N52 (Br ≥14.2 kGs, Hcj ≥12 kOe) |
|
Dimension |
R5*3 |
|
Dimensional Tolerance |
+/-0.05 |
|
Operating Temperature |
≤80°C (High-temp versions available) |
|
Density |
≥7.5 g/cm³ |
|
Surface Magnetic Field |
2,800 Gs |
|
Magnetic Flux |
2.0 mWb (Fluxmeter-tested) |
Manufacturing Process
Our magnets are manufactured through a highly refined, automated, and quality-driven production system. Every process step is engineered to deliver consistent magnetic strength, precise geometry, and long-term durability across industrial and consumer applications.
Coating & Corrosion Protection
- Surface protection is a key process to ensure the long-term reliability and service life of NdFeB magnets.
- Multiple proven coating systems are available, including Ni-Cu-Ni, zinc plating, epoxy coating, and Parylene, to address different application environments.
- Corrosion resistance performance is verified through salt spray testing and damp heat testing in accordance with relevant standards.
- Coating thickness and adhesion are strictly controlled to reduce the risk of pinholes, micro-cracks, and delamination.
- Process parameters are optimized to ensure effective protection without negatively affecting magnetic air gaps or assembly tolerances.
- Coating selection is based on actual operating conditions, such as humidity, temperature fluctuation, chemical exposure, and mechanical stress, rather than promoting a single universal solution.
Mechanical & Assembly Considerations
● NdFeB magnets are inherently brittle, requiring careful consideration of mechanical integrity during handling, assembly, and operation.
● Engineering support is provided to improve resistance to vibration, shock, and mechanical stress in real working conditions.
● Assembly methods such as press-fitting, adhesive bonding, and insert mounting are evaluated based on magnet geometry, load conditions, and thermal constraints.
● Design measures including chamfering, encapsulation, and magnet segmentation are recommended where appropriate to reduce the risk of chipping and cracking.
● Mechanical design and assembly processes are optimized to minimize long-term failure risks under dynamic or cyclic loads.
● This engineering-driven approach supports stable and reliable magnet integration in complex mechanical assemblies
Quality Control & Inspection
● Consistent quality and full traceability are essential for demanding applications and international markets.
● The quality control process covers magnetic performance, mechanical integrity, and dimensional accuracy throughout production.
● Magnetic properties are verified using Helmholtz coils and flux meters, with pull-force testing conducted to validate functional performance.
● Dimensional tolerances, surface appearance, and coating integrity are inspected according to defined inspection criteria.
● Batch traceability is ensured through laser marking and complete inspection records.
● Manufacturing and quality management systems comply with ISO and IATF standards, supporting long-term supply stability and reliability.
Packaging & Transportation
- Each batch is checked prior to packing to confirm product condition and specifications.
- Magnets are arranged with protective separators to avoid contact and mechanical damage.
- Shock-absorbing and non-magnetic materials are used in inner packaging to ensure stability.
Customization & Technical Services
We provide a full suite of customization solutions:
Custom shapes, dimensions, and coating systems
Tailored magnetization directions and magnetic field strength
Laser marking for branding and traceability
Pull-force testing and application-specific packaging
Engineering guidance for design optimization and performance enhancement
▲ Backed by strong material science expertise, we serve industries including EVs, automation, consumer electronics, robotics, and renewable energy.
FAQ
Q1. What are common mistakes in specifying magnet tolerances?
Over-tight tolerances increase cost unnecessarily, while loose tolerances can lead to assembly variation and unstable magnetic performance.
Q2. How does storage orientation affect magnet performance?
Improper storage can increase self-demagnetization risk or cause mechanical damage. Correct orientation reduces magnetic stress.
Q3. When should magnetic aging tests be performed?
Aging tests are recommended for high-reliability, long-life, or safety-critical applications to validate long-term performance stability.
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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