Product overview & Application examples
Black epoxy coating shaped magnet is engineered for exceptional strength and versatility. Its unique cross design provides multi-directional contact points, ensuring secure and balanced attachment to various surfaces. Crafted from premium neodymium, this rare earth magnet delivers superior pull force while maintaining a compact form. The cross shape enhances stability, making it ideal for industrial fixtures, mechanical assemblies, and creative applications. With high resistance to demagnetization and excellent performance across multiple uses, this black epoxy coating shaped magnet combines powerful functionality with innovative design, offering reliable solutions for both technical and decorative needs.
Technical Specifications
|
Product Name |
black epoxy coating shaped magnets |
|
Magnet Grade |
N40 (Br ≥11.8 kGs, Hcj ≥12 kOe) |
|
Dimensional Tolerance |
+/-0.05 |
|
Operating Temperature |
≤80°C (High-temp versions available) |
|
Density |
≥7.5 g/cm³ |
|
Surface Magnetic Field |
3,500 Gs |
|
Magnetic Flux |
2.0 mWb (Fluxmeter-tested) |
N40 Neodymium Magnet
N40 is a mid-high grade neodymium iron boron (NdFeB) magnet that offers reliable magnetic performance under standard temperature conditions. It is commonly used where stable output and cost efficiency are both important.
Performance Characteristics
- Balanced Magnetic Strength (Br):
Provides sufficient flux density for most standard and industrial applications.
- Stable Energy Product (BHmax):
Supports efficient magnetic circuits without the need for very high-grade materials.
- Standard Operating Temperature:
Designed for use up to 80°C, suitable for normal working environments.
- Good Cost-Performance Ratio:
An effective choice for applications requiring dependable performance with controlled material cost.
▲ Summary
N40 delivers a solid balance of performance, stability, and cost efficiency. It is well suited for applications that require consistent magnetic output under normal temperature conditions without the need for ultra-high magnetic grades.
Quality Inspection
Comprehensive quality inspection conducted at all production stages, including:
- Raw material inspection
- In-process quality control
- Final product inspection
- Verification of:
- Magnetic performance
- Dimensional accuracy
- Surface finish and coating quality
All inspections are performed to ensure full compliance with customer specifications and quality standards
Packaging & Transportation
- Post-Coating Inspection & Verification
- Product Classification & Segregation
- Magnetic Isolation & Physical Separation
- Moisture & Corrosion Protection
- Structural Reinforcement of Outer Packaging
FAQ
Q1. What risks are associated with partial or uneven magnetization?
Uneven magnetization can result in inconsistent pull force, unstable torque, or noise in motor applications. This is often caused by insufficient magnetizing field strength or improper fixture design. Process control during magnetization is essential for performance repeatability.
Q2. How does dimensional tolerance affect magnetic circuit efficiency?
Small dimensional deviations can significantly impact air gaps and magnetic flux density, especially in precision assemblies. Tight tolerance control is critical for applications such as motors, sensors, and actuators, where performance is highly geometry-dependent.
Q3. Are NdFeB magnets suitable for long-term outdoor or marine environments?
Only with appropriate surface treatment and sealing. Standard coatings may fail under salt spray or continuous humidity. For such environments, enhanced coatings, encapsulation, or alternative magnetic materials should be evaluated.
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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