Custom N45 Magnets Manufacturer in China
Looking for reliable and powerful N45 neodymium magnets for your project or production needs? Our N45 magnets are manufactured using premium NdFeB (Neodymium Iron Boron) materials, delivering excellent magnetic performance, high energy density, and long-term stability.
As a professional custom neodymium magnet manufacturer, we supply N45 magnets in a wide range of sizes, shapes, coatings, and magnetization options for customers worldwide. Whether you need standard components or fully customized magnetic solutions, we can support your requirements with fast production and strict quality control.
What Is an N45 Magnet?
An N45 magnet is a high-performance grade of neodymium magnet with a maximum energy product of approximately 45 MGOe. It offers stronger magnetic force than N35, N38, N40, and N42 grades while maintaining excellent cost-effectiveness.
Because of their strong magnetic strength and compact size, N45 magnets are often selected when engineers need maximum performance within limited installation space.
N45 Magnet Specifications
| Property | Value |
|---|---|
| Magnet Grade | N45 |
| Material | Sintered NdFeB |
| Maximum Energy Product (BHmax) | 43–46 MGOe |
| Remanence (Br) | 13.2–13.8 kGs |
| Intrinsic Coercivity (Hcj) | ≥ 12 kOe |
| Density | 7.4–7.6 g/cm³ |
| Working Temperature | Up to 80°C |
| Curie Temperature | 310–340°C |
| Manufacturing Process | Sintered |
Technical values may vary slightly depending on magnet dimensions and production requirements.
Key Benefits of N45 Magnets
Strong Magnetic Force
N45 magnets provide significantly higher magnetic strength than lower grades, making them suitable for demanding industrial applications.
Compact Design Solutions
Because of their high magnetic energy density, smaller N45 magnets can often replace larger conventional magnets, helping reduce product size and weight.
Excellent Reliability
Manufactured under strict quality standards, N45 magnets maintain stable magnetic performance throughout their service life.
Cost-Effective Performance
N45 offers an ideal balance between magnetic strength and production cost, making it one of the most popular grades for OEM applications.
Custom Manufacturing Available
We can produce N45 magnets according to your drawings, samples, or technical specifications.
Available N45 Magnet Shapes
We manufacture custom N45 magnets in various shapes and sizes:
N45 Disc Magnets
Ideal for sensors, holding systems, electronics, and assemblies.
N45 Ring Magnets
Commonly used in motors, generators, speakers, and magnetic couplings.
N45 Block Magnets
Suitable for industrial equipment, automation systems, and magnetic fixtures.
N45 Cylinder Magnets
Widely used in medical devices, robotics, and magnetic tools.
N45 Countersunk Magnets
Perfect for mounting and fastening applications.
N45 Arc & Segment Magnets
Designed for permanent magnet motors and generator assemblies.
Custom-Shaped N45 Magnets
Available according to customer drawings and project requirements.
Surface Coating Options
To improve corrosion resistance and service life, N45 magnets can be supplied with different coatings:
| Coating | Features |
|---|---|
| Ni-Cu-Ni Nickel | Most popular coating |
| Zinc (Zn) | Economical protection |
| Epoxy | Excellent moisture resistance |
| Gold | Decorative and corrosion-resistant |
| Black Epoxy | Suitable for outdoor applications |
| Parylene | Medical and electronics applications |
| PTFE | Chemical resistance |
Custom coating solutions are available upon request.
Magnetization Options
We provide multiple magnetization directions:
- Axial Magnetization
- Diametrical Magnetization
- Through Thickness Magnetization
- Through Length Magnetization
- Multi-Pole Magnetization
- Custom Magnetization Patterns
Our engineering team can recommend the optimal magnetization method based on your application.
Typical Applications of N45 Magnets
Electric Motors
N45 magnets deliver strong magnetic flux density, making them ideal for high-efficiency motor systems.
Industrial Automation
Used in robotic equipment, magnetic grippers, linear actuators, and automation systems.
Magnetic Separators
Provide strong magnetic fields for removing ferrous contaminants from industrial materials.
Renewable Energy
Applied in wind turbine generators and energy-efficient power generation systems.
Medical Equipment
Used in diagnostic devices, laboratory equipment, and precision instruments.
Consumer Electronics
Suitable for speakers, headphones, sensors, charging systems, and smart devices.
Aerospace & Defense
Utilized in lightweight, high-performance magnetic assemblies where reliability is critical.
Why Choose Our N45 Magnets?
Premium Raw Materials
We source high-quality rare earth materials to ensure consistent magnetic properties.
Advanced Manufacturing
Precision sintering, machining, coating, and magnetization processes.
Tight Tolerance Control
Custom tolerances available for demanding engineering applications.
OEM & ODM Support
From prototype development to mass production.
Strict Quality Inspection
Every batch undergoes comprehensive testing before shipment.
Custom N45 Magnet Manufacturing Service
We provide complete customization services, including:
- Custom dimensions
- Custom shapes
- Special coatings
- High-temperature grades
- Multi-pole magnetization
- Assembly solutions
- Private labeling
- Bulk production
Simply send us your drawing, sample, or application requirements, and our engineering team will provide a suitable magnetic solution.
Frequently Asked Questions
Is N45 stronger than N42?
Yes. N45 magnets generally provide higher magnetic energy and stronger pull force than N42 magnets of the same size.
What is the maximum operating temperature of N45 magnets?
Standard N45 magnets typically operate up to 80°C. For higher temperatures, N45M, N45H, N45SH, or higher-temperature grades are available.
Can N45 magnets be customized?
Yes. We offer custom sizes, shapes, coatings, tolerances, and magnetization directions.
Are N45 magnets suitable for outdoor use?
Yes. With appropriate coatings such as epoxy, black epoxy, or specialized protective coatings, N45 magnets can be used in outdoor environments.
What industries commonly use N45 magnets?
Industries include automotive, renewable energy, industrial automation, robotics, electronics, medical equipment, aerospace, and manufacturing.
Request a Quote
Need a reliable supplier for custom N45 neodymium magnets? Our experienced engineering and production team can help you develop the right magnetic solution for your application. Contact us today for pricing, samples, technical support, and bulk order inquiries.