Product Overview & Application Scenarios
These industrial-grade triangular pyramid magnets deliver a sharply focused magnetic field at the tip, ideal for specialized applications in education, healthcare and industrial manufacturing. Precision-engineered, they are essential for academic experiments, high-precision biological testing and the development of non-invasive medical therapies. Their unique pyramid shape enables precise magnetic field manipulation and detailed measurement, greatly boosting the accuracy and efficiency of your research, diagnostic and product development projects.
Note: The narrow tip of each pyramid magnet is the south pole-two magnets will repel each other if their tips are aligned. To achieve attraction between the narrow tips of two pyramid magnets, you must purchase magnets with opposite polarities from our separate product listing.
Technical Specifications
|
Product Name |
triangle shaped magnets |
|
Magnet Grade |
N52 (Br ≥14.2 kGs, Hcj ≥12 kOe) |
|
Dimension |
Base 25.4mm x Top 3.18mm x Thickness 25.4mm |
|
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
To enhance this high strength triangle shaped Magnet's corrosion resistance, surface quality, and magnetic stability, the following treatments are used:
Enhanced Edge Reinforcement:
Magnet seams are fortified using advanced laser cladding with a nickel-based alloy. This creates a dense, protective barrier that effectively suppresses electrochemical corrosion and prolongs service life.
Precision Edge Rounding:
Edges are carefully rounded to minimize magnetic flux distortion, improving field uniformity and overall performance in precision assemblies.
Standard Protective Coating – Ni/Cu/Ni:
Each magnet is finished with a customizable triple-layer nickel–copper–nickel coating, delivering reliable corrosion resistance and surface durability.
Packaging & Transportation
Following coating inspection and performance verification, NdFeB magnets are classified by grade, size, and magnetization state. Magnets are layered with non-magnetic separators to eliminate collision risks and preserve coating integrity.
Vacuum sealing or desiccant-assisted moisture protection is applied when necessary to prevent oxidation and corrosion. Outer packaging is structurally reinforced, and magnetic shielding is added for high Gauss products to ensure compliance with international transportation standards. Customized packaging solutions are available based on handling, storage, and application conditions.
Customization and Services:
Pre-Sales Service – NdFeB Magnets
We provide professional technical consultation on grade, temperature, coating, tolerance and performance of NdFeB magnets, plus tailored optimized design & material suggestions. Custom samples, feasibility analysis and technical drawings are available for pre-production evaluation.
After-Sales Service – NdFeB Magnets
Comprehensive after-sales support includes assembly guidance, performance troubleshooting and usage advice. For quality/performance issues, we offer timely root-cause analysis, corrective plans and proper solutions, with efficient communication for stable long-term cooperation.
Quality Inspection Process – NdFeB Magnets
NdFeB magnets undergo strict full-process quality checks: raw material physicochemical testing, in-process dimension/magnetism/coating/appearance inspection, and finished product full testing of magnetic performance, surface quality, dimensional accuracy and corrosion resistance (via professional equipment). Products are released only after meeting all technical and quality standards.
Frequently Asked Questions:
Q1. How does operating temperature affect long-term magnetic stability?
Operating temperature directly influences irreversible demagnetization. Even below the maximum working temperature, prolonged exposure can lead to partial flux loss depending on grade, coercivity margin, and magnetic circuit design. High-temperature grades with enhanced intrinsic coercivity are recommended for continuous thermal exposure.
Q2. What are the main causes of NdFeB magnet corrosion in real applications?
Corrosion typically results from coating damage, edge chipping, or prolonged exposure to humidity, salt spray, or chemicals. Micro-cracks formed during assembly or handling can allow moisture ingress, leading to internal oxidation. Proper coating selection and packaging are critical to long-term reliability.
Q3. How does coating choice impact magnetic performance and durability?
While coatings do not significantly affect intrinsic magnetic properties, they play a key role in environmental resistance and mechanical protection. Thicker or multi-layer coatings improve corrosion resistance but may affect dimensional tolerances and assembly fit. Coating selection should balance protection and application constraints.
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