Product Overview
This high remanence ring magnets is engineered for motor rotor applications, offering exceptional magnetic strength, compact size, and high energy efficiency. It ensures superior torque density, reduced power loss, and reliable performance under demanding conditions, making it ideal for next-generation electric motors.
Technical Specifications
|
Product Name |
high remanence ring magnets |
|
Magnet Grade |
N35 (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) |
Manufacturing Process
The production of our high remanence cube magnet is carried out through a thoroughly optimized and highly automated process. Each stage is precisely managed to ensure exceptional product consistency, superior magnetic performance, and long-term durability across a wide range of applications.
Pulse Magnetization
Our production line is equipped with advanced pulse magnetization systems capable of generating powerful, stable magnetic fields. This ensures:
- Accurate magnetization aligned with design requirements
- Consistent performance under high mechanical loads
- Stable magnetic output even in high-frequency or dynamic operating environments
- Every magnet is energized to its optimal magnetic state for reliable use in demanding industrial systems.
Appearance & Dimensional Inspection
Visual Inspection
Under standardized lighting conditions, trained quality-control technicians examine each magnet for:
Cracks or chips
Surface pores or inclusions
Coating defects
Oxidation or discoloration
Strict inspection procedures ensure only flawless products proceed to the next stage.
Image Measurement System
Using high-resolution cameras and precision algorithms, non-contact 2D measurements are taken to verify dimensional accuracy. This system excels at identifying deviations in:
- Complex geometries
- Irregular or curved surfaces
- High-precision tolerances
Its speed and objectivity make it ideal for large-volume manufacturing.
Automated Intelligent Inspection
Artificial intelligence drives our high-speed automated inspection platform. It detects:
- Micro-scratches
- Surface contamination
- Coating inconsistencies
- Dimensional defects
This dramatically improves production yield, reduces labor intensity, and eliminates subjective errors in manual inspection.
Reliability Testing
Salt Spray Test
To validate the corrosion resistance of the zinc coating, magnets undergo salt spray testing-a recognized accelerated-aging procedure. It replicates harsh environments such as:
- Marine climates
- Industrial pollutant exposure
- High humidity conditions
- Mild acidic or alkaline atmospheres
- Test results confirm long-term protection and coating durability.
Constant Temperature & Humidity Test
Magnets are placed in controlled chambers at 85°C / 85% RH for 96–500 hours. Pre- and post-test evaluations assess:
- Surface integrity
- Magnetic stability
- Coating adhesion
- Structural performance
This ensures the magnets remain reliable even in severe or long-term environmental stress.
Packaging & Transportation
100% Defect Screening
Before shipping, every magnet undergoes a final inspection using:
- High-precision calipers
- Optical projectors
- Automated inspection systems
- Manual visual check
- Any unit showing cracks, oxidation, coating defects, or dimensional inconsistencies is removed.
Optimized Magnetization & Arrangement
Magnets are magnetized uniformly and arranged carefully to:
- Maintain stable magnetic field direction
- Reduce magnetic interference during transport
- Support automated assembly on customer production lines
Vacuum-Sealed Protection
To guarantee storage stability, magnets are packed using:
- Multi-layer vacuum sealing
- Moisture-proof barrier films
- Desiccants or nitrogen filling
- This prevents corrosion and protects magnetic performance.
Custom Outer Packaging
Our packaging solutions include:
- Shock-proof multi-layer cartons
- Plastic or metal protective cases
- Anti-magnetic leakage shielding
- All packaging complies with international transportation standards and includes clear product labels, batch tracking, and documentation.
Reliable Global Logistics
We treat logistics as an integral part of product quality-every shipment reflects our commitment to excellence.
Our logistical advantages include:
- Worldwide shipping coverage
- Real-time tracking from factory to destination
- Certified safety and compliance throughout the supply chain
- Customizable logistics plans for different industries and volume needs
With a strong global network spanning land, sea, and air, we ensure your products arrive securely and on schedule.
Why Choose Us
Dongguan Jinconn New Material Holdings Co., Ltd. is a publicly listed company specializing in the development, manufacturing, and global distribution of rare-earth magnets. Based in Dongguan's Xiaomen Industrial Zone, we serve major industries across China and worldwide.
Our Key Advantages
Over 20 Years of Magnet Manufacturing Expertise
Deep technical insight, mature processes, and consistent product quality.
Strict Quality Control & Tailored Engineering Solutions
From raw materials to final packaging, every step follows global QC standards. We offer full customization for any specification.
Global Delivery & Multilingual Technical Support
Our international service team ensures seamless communication and fast technical assistance.
RoHS & REACH Compliant
All products meet international safety and environmental regulations, ensuring worry-free integration.
Free Samples & Certifications
We support global customers with samples and complete documentation, including:
MSDS
RoHS
ISO 9001
QC080000
IATF 16949
ISO 14001
ISO 27001
Additional certifications are available upon request.
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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