Discover the high magnetic force corrosion resistant shaped magnets engineered for precision and performance. Its unique petal-shaped contour and center bore offer enhanced mechanical locking and anti-rotation capabilities
Product Overview
▲ Precision Engineering · Structural Innovation
This high-performance, corrosion-protected shaped magnet features a distinctive multi-petal outer geometry combined with a central through-hole, delivering both structural and functional advantages over traditional round magnets. The engineered profile improves positional stability and torque resistance, enabling reliable mechanical engagement within complex assemblies.
The lobed perimeter enhances anti-rotation performance and load distribution, while the center bore allows for precise mounting on shafts or fasteners. Designed for demanding environments, the magnet's corrosion-resistant surface treatment ensures long-term durability and consistent magnetic performance.
This design is particularly well suited for motors, encoders, sensor housings, and precision transmission systems, where accurate alignment, secure fixation, and compact integration are critical.
▲ Structural Advantages:
- Anti-Rotation Locking: Lobed outer profile prevents rotational slip under high-speed conditions, improving mechanical reliability
- Precision Fit: The symmetrical slot pattern ensures consistent assembly alignment, ideal for automated production
- Multi-Surface Contact: Enhances bonding or mechanical coupling with shafts, sleeves, or positioning elements.
▲ High Mechanical Stability：
The engineered contour enhances mechanical interlocking with surrounding components, reducing reliance on additional keys or adhesives and improving long-term structural integrity.
▲ Performance Highlights:
Made from high-grade N52 neodymium, delivering ultra-strong magnetic force in compact form
Protected by triple-layer Ni-Cu-Ni coating for excellent corrosion and oxidation resistance
Thermal stability up to 200°C, making it suitable for demanding environments such as automotive and aerospace
Tight machining tolerance (±0.05mm) ensures a perfect fit for high-precision application.
Technical Specifications
|
Products Name |
Corrosion-Protected Precision-Shaped Magnets |
|
Magnet Grade |
N45 (Br ≥ 14.8 KGs, Hcj ≥ 10.5 KOe) - Customizable |
|
Dimensions |
Y10x8x5mm |
|
Tolerance |
±0.05 mm (Length, Width, Thickness) |
|
Operating Temperature |
≤ 80°C (Customizable high-temp versions available) |
|
Density |
≥7.5 g/cm³ |
|
Surface Magnetic Field |
2400 Gauss (Measured using Japan TM-801 Gauss meter) |
|
Magnetic Flux |
2.2 mWb (Measured; value varies by material grade) |
Manufacturing Process
The product is manufactured through the following key processes:
- Wire Cutting: Uses molybdenum/copper wire cutting equipment to achieve ±0.02mm precision for small-batch custom rings.
- Centerless Grinding: Refines inner and outer diameters to ensure roundness (±0.05mm tolerance).
- Double-Disc Grinding: Controls thickness and parallelism.
Appearance & Dimensional Inspection
Visual Inspection: Under standardized lighting, trained QC staff check for cracks, chipping, inclusions, pores, or oxidation.
Image Measurement System: High-res cameras and algorithms conduct non-contact 2D measurements, especially for complex or irregular shapes, ensuring efficiency and objectivity in mass production.
Automated Optical Inspection: High-speed cameras with AI algorithms detect and reject defects (e.g., cracks, scratches, discoloration) and dimensional anomalies, improving yield and reducing human error.
Packaging & Transportation
Quality Control: Every magnet undergoes 100% inspection using calipers, projectors, and automated systems to ensure no defects like cracks, chips, oxidation, or coating issues.
Optimal Magnetization & Packaging: Magnets are evenly magnetized and arranged for efficient packaging and easy automation, tailored to your needs for top performance.
Advanced Packaging: Our multi-layer vacuum packaging, with moisture barriers and desiccants, protects against corrosion and magnetic interference during storage and shipping.
Customized Outer Packaging: Shockproof, moisture-resistant, and anti-magnetic leakage packaging meets international standards, complete with product lists, labels, and tracking codes for easy handling.
Application Scenarios
High-End Motors & Drive Systems
Application Scenarios: Brush-less DC motors (BLDC), stepper motors, servo motors, precision rotor systems
Structural Contribution: The lobed outer profile prevents magnet displacement or slippage during high-speed rotor rotation
Key Benefits:
More stable torque output, reducing vibration and noise
Improved assembly accuracy, significantly lowering alignment errors
High-temperature resistant materials support up to 200°C operation, ideal for EVs, power tools, etc.
Consumer Electronics Components
Application Scenarios: Wireless earbud cases, laptop hinge assemblies, magnetic mounting elements
Structural Contribution: Unique shape supports concealed structural integration and reliable magnetic attachment
Key Benefits:
Compact size with strong holding force, satisfying industrial aesthetic demands
Balanced magnetic field with no leakage, avoiding interference with precision electronics
Custom coating options (epoxy, black zinc, etc.) provide both visual appeal and protection
Smart Locks & Mechanical Positioning Systems
Application Scenarios: Fingerprint locks, electro-lock magnetic positioning, anti-drop latch modules
Structural Contribution: Four-lobed design offers multi-point contact for stable alignment, center bore allows screw/pin fixing
Key Benefits:
Enhanced structural stability, prevents loosening and shifting
Simplifies assembly, improves installation efficiency
Magnetic closure enhances tactile feel and security
Why Choose us ?
Automotive-grade magnet design for harsh operating conditions
Custom-shaped solutions for improved assembly and reliability
Proven corrosion resistance for long service life
Consistent magnetic performance with strict quality control
End-to-end support from design to mass production
At JinConn, we are committed to delivering high-performance magnetic products and customized services that help our clients gain a competitive edge. Here's why industry leaders choose us:
Rich Industry Experience
With over a decade of expertise in magnetic materials and precision magnet manufacturing, we understand the technical demands of a wide range of industries.
Strong R&D and Customization Capabilities
Our in-house engineering and tooling teams enable us to offer custom-shaped, high-precision, and application-specific magnets tailored to your unique requirements.
Certified Quality Assurance
We adhere to international standards including ISO 9001, ISO 14001, and IATF 16949, with strict quality control from raw materials to finished products.
Technical Support & Responsive Service
From product selection and prototyping to mass production, our expert team provides fast, reliable technical support to keep your projects on track.
Customization & Services
Customized Magnet Sizes, Shapes, and Coatings:
We offer fully tailored magnet dimensions, shapes, and coating options, including multiple layers, varying thicknesses, and color choices.
Personalized Magnetization & Strength:
Magnetization direction and field strength can be adjusted to meet your specific application requirements.
Laser Engraving:
We provide laser engraving services for logos, serial numbers, or other custom markings.
Specialized Testing:
We conduct packaging and suction force testing to ensure performance in unique or demanding applications.
FAQ
Q1: What industries can this shaped neodymium magnet be used in?
Answer：This magnet is widely used in Automotive Industry, motors, sensors, automation assemblies, smart locks, consumer electronics, and medical devices requiring precise alignment and strong magnetic force.
Q2: What are the advantages of this flower-shaped magnet compared to regular ring magnets?
Answer：The multi-lobed or flower shape offers better anti-rotation and anti-slip properties, ensuring secure mechanical locking and precision mounting-ideal for high-speed rotor systems and precise assemblies.
Q3: Can you customize the size, grade, or coating of the magnet?
Answer：Yes, we offer full customization on dimensions, bore position, magnetic grades (N35–N52) for H/SH,UH, EH and coatings (Ni-Cu-Ni, epoxy, zinc, etc.)
Contact us to receive free samples and customized magnet solutions
Phone/WhatsApp/WeChat: +86 13829120676
Email: Info@jinconn.com
Address: Xiaohe Industrial Zone, Daojiao Town, Dongguan City, Guangdong Province, China
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