Precision Sintered custom high strength NdFeB magnet are the strongest commercially available rare-earth magnetic materials. They exhibit high remanence (Br), high intrinsic coercivity (Hcj), and an excellent maximum energy product (BHmax), capable of generating extremely powerful magnetic fields in compact volumes.
Precision custom Sintered high strength ndfeb magnet 
1. Product Overview
Precision Sintered custom high strength NdFeB magnet are the strongest commercially available rare-earth magnetic materials. They exhibit high remanence (Br), high intrinsic coercivity (Hcj), and an excellent maximum energy product (BHmax), capable of generating extremely powerful magnetic fields in compact volumes. These magnets are produced using advanced powder metallurgy sintering technology, with precise control of alloy composition, particle size distribution and magnetic orientation. industrial robot magnet
2. Technical Parameters
Product Name | Precision Sintered custom high strength NdFeB magnet |
Grade | N45(Br ≥ 13.8 KGs, Hcj ≥ KOe) |
Dimension | Customization |
Tolerance | Length ±0.05mm, Width ±0.05mm, Thickness ±0.05mm |
Temperature | Length ±0.05mm, Width ±0.05mm, Thickness ±0.05mm |
Density | ≥ 7.5 g/cm³ |
Surface Magnetic Field | 4500 Gauss (measured with TM-801 Gauss meter, Japan) |
Magnetic Flux | 1.8 mWb (measured with fluxmeter) |
3. Manufacturing Process
Powder Metallurgy Process:
Involves melting, strip casting, hydrogen decrepitation, and jet milling, significantly enhancing magnetic performance and thermal stability.
High-Temperature Sintering & Heat Treatment:
Sintered in vacuum or inert atmospheres at 1100–1150°C to increase density and mechanical strength
Grain Boundary Optimization:
Heat treatment improves grain boundary structure, enhancing high-temperature stability and demagnetization resistance.
4. Surface Treatment & Coating Technology
Epoxy Resin Coating:
Offers additional protection against chemical corrosion and moisture, particularly suitable for high-humidity environments.
Laser Sealing:
High-precision lasers seal microcracks on the surface, improving corrosion resistance, especially in marine or high-salt spray environments.
5. Appearance & Dimensional Inspection Standards
Manual Inspection (Micrometer/Caliper): Ensures dimensional precision and conformance to specification.
Visual Inspection: Conducted under standard lighting to detect visible surface defects or cracks.
2D Vision Measurement System: Used for inspecting non-standard or complex-shaped products to ensure geometric accuracy.
CCD Automatic Sorting Machine: Enables high-speed automated inspection of dimensions and surface appearance, improving production efficiency and reducing human error.
6. Reliability Testing
Shock & Vibration Testing:
Simulates the stresses encountered during transportation and usage to verify mechanical integrity.
High-Temperature Demagnetization Test:
Evaluates magnetic stability under elevated temperatures to ensure long-term performance.
Damp Heat Testing:
Exposes magnets to high humidity environments to assess moisture resistance and anti-corrosion capability.
7. Packaging & Transportation
Defect Elimination:
Visually and dimensionally defective products are removed.
Magnetization & Arrangement:
Each magnet is uniformly magnetized and arranged neatly according to customer packaging requirements.
Vacuum Packaging:
Protects against moisture and magnetic interference.
Outer Packaging:
Shock-proof, moisture-resistant, and magnetic shielding cartons ensure safe transport and storage.
8. Application Fields
Advanced Medical Devices:
Widely used in MRI systems, magnetic-assisted positioning components, and surgical magnetic fixation systems. These magnets provide stable and controllable magnetic fields to ensure reliability and safety in sensitive medical environments.
Industrial Automation:
Applied in positioning, clamping, and conveying systems on automated production lines, such as magnetic chucks and guide rails, improving assembly precision and system efficiency through non-contact operation.
Smart Wearable Devices:
Integrated into smartwatches, Bluetooth headsets, magnetic charging interfaces, and other wearable accessories, enabling magnetic docking, quick disassembly, and precise alignment, enhancing both user experience and product compactness.
9. Usage Precautions
Handling:
NdFeB magnets are hard but brittle. Avoid dropping, collision, or chipping during transportation or use.
Safe Use:
Due to their strong magnetic force, avoid bending during handling. It is recommended to slide magnets apart to prevent pinching injuries.
Correct Installation:
Identify pole orientation correctly (based on shape) to ensure proper installation and safe equipment operation.
Storage Conditions:
Keep magnets away from high temperatures, humidity, strong acids, and alkalis. Ensure dry and corrosion-free storage.
Magnetic Interference:
Keep away from sensitive electronic equipment such as hard drives, IC cards, and pacemakers due to strong magnetic fields.
10. Customization & Services
Support for customized dimensions, shapes, coating types (layer count, thickness, color)
Customizable magnetic polarity and field strength
Laser engraving for logos or serial numbers available
Tailored packaging and magnetic pull-force testing solutions for special applications.
Please contact us for free samples, magnet customization solutions, and MSDSRoHS, ISO 9001, QC080000, IATF 16949, ISO 14001, ISO 27001 or other relevant certificates! .
Contact Us:
Phone: +86 18038225892
Email: helen@jinconn.com
Address: Xiaohe Industrial Zone, Daojiao Town, Dongguan City, Guangdong Province, China
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