Product Overview & Application examples
Magnets for smart electrical Consumer , Robotics typically use high-performance sintered NdFeB micro magnets. They are characterized by small size, strong magnetic force, and high precision, developed specifically for Vehicle, magnetic charging cases, magnetic ear hooks, and internal audio unit components. These industrial grade corrosion resistant cylindrical magnets are precisely designed to meet comprehensive requirements for suction, positioning accuracy, electroacoustic performance, and ease of assembly. They support custom shapes (e.g., oval, strip, square, disc) and various coatings (e.g., Ni, epoxy, metallic coatings), and are widely used in consumer-grade smart wearable devices.
Technical Specifications
|
Product Name |
Corrosion resistant cylindrical magnets |
|
Magnetic Material Grade |
N48M (Br≥14.8KGs, Hcj≥10.5KOe) |
|
Products Dimension |
R6x15 |
|
Tolerance |
N48M (Br≥14.8KGs, Hcj≥10.5KOe) |
|
Working Temperature |
≤80 (high-temperature versions available) |
|
Density |
≥7.5g/cm |
|
Magnetic Field Strength |
2600 |
|
Magnetic Flux |
1.8 mWb (Measured; value varies by material grade) |
2.1 N48M Neodymium Magnet
N48M is a high-performance neodymium iron boron (NdFeB) magnet grade, designed to deliver strong magnetic force while maintaining stable performance at elevated temperatures. It is widely used in demanding industrial and technical applications.
Key Characteristics
High Magnetic Strength:
N48 provides excellent energy density and strong holding force in compact designs.
M Grade Temperature Resistance:
The "M" grade ensures reliable operation at temperatures up to 100°C, making it suitable for applications with moderate heat exposure.
Stable Performance:
Good resistance to demagnetization, ensuring consistent magnetic properties over time.
Versatile Applications:
Commonly used in motors, sensors, magnetic assemblies, automation equipment, and precision mechanical systems.
Summary
N48M combines strong magnetic performance with dependable temperature stability. It is an ideal choice for customers who need high power magnets with reliable performance in compact and heat-affected environments.
Application Fields:
Corrosion-resistant cylindrical magnets are designed for applications that require stable magnetic performance, compact geometry, and long-term reliability in humid, corrosive, or demanding operating environments. With optimized cylindrical geometry and enhanced surface protection, these magnets are well suited for both industrial and precision applications.
Industrial Automation & Equipment
Used in sensors, actuators, positioning systems, and fixtures
Cylindrical shape enables easy integration into bores and housings
Corrosion-resistant coatings ensure stable performance in humid or oily environments
Motors, Pumps & Rotating Systems
Applied in small motors, magnetic couplings, and pump components
Uniform geometry supports consistent magnetic fields and balanced rotation
Enhanced corrosion protection extends service life under continuous operation
Electronics & Smart Devices
Used in speakers, vibration motors, connectors, and latching mechanisms
Compact size supports device miniaturization without compromising holding force
Protective coatings prevent oxidation that could affect long-term reliability
Packaging and Transportation
Finished magnets are cleaned and inspected prior to packaging.
Individual magnets or stacks are separated using non-magnetic spacers to prevent direct contact and chipping.
Magnet stacks are securely wrapped with protective film to ensure stability.
Shock-absorbing materials such as foam or bubble wrap are applied to protect against impact and vibration.
Magnets are packed into reinforced inner cartons with proper cushioning.
Inner cartons are sealed, labeled, and placed into outer cartons or wooden cases as required for shipment.
Engineering Support & Customization for NdFeB Magnets
Engineering Customization
- Magnetic circuit analysis and magnet selection assistance
- Customized magnetization patterns to match system-level requirements
- Dimensional and tolerance optimization for assembly integration
- Performance validation through magnetic and mechanical testing
Post-Delivery Technical Support
- Application troubleshooting and reliability evaluation
- Assistance with field performance verification
- Engineering feedback loop for design refinement and performance improvement
FAQ
Q1. What tolerance limitations should I expect for NdFeB magnets?
Answer:Standard sintered NdFeB magnets typically achieve
±0.05 mm for small, simple geometries
±0.1 mm for larger or more complex shapes
Tighter tolerances require additional grinding and inspection, increasing cost and lead time.
Q2. How does operating temperature margin affect magnet lifespan?
Answer:Operating close to the maximum rated temperature increases the risk of partial irreversible demagnetization over time. A conservative temperature margin improves long-term stability, particularly in cyclic or high-load applications.
Q3. Why is pull-force testing sometimes inconsistent?
Answer:Pull-force results vary due to:
Surface flatness and roughness
Test speed and alignment
Steel plate material and thickness
Pull force is a comparative indicator, not an absolute material property.
Contact Us
We're here to help!
Phone/WhatsApp/WeChat: +86 13829120676
Email: info@jinconn.com
Website: www.jinconnmagnet.com
Address: Xiaohe Industrial Zone, Daojiao Town, Dongguan City, Guangdong, China
Hot Tags: corrosion resistant cylindrical magnets, China corrosion resistant cylindrical magnets manufacturers, factory
