Custom N48 Magnets Manufacturer in China
The N48 Magnet is a high-performance rare-earth magnet engineered for maximum magnetic strength and stability. Rated as N48, these magnets offer one of the strongest pull forces available in commercial-grade NdFeB magnets. Perfect for industrial, commercial, and hobbyist applications, N48 magnets deliver exceptional reliability and efficiency in every use.
As a professional custom neodymium magnet manufacturer, we produce N48 magnets in a wide range of shapes, sizes, coatings, tolerances, and magnetization directions to meet the requirements of OEM customers worldwide.
What is an N48 Magnet?
An N48 magnet is a high-strength neodymium magnet made from neodymium, iron, and boron (NdFeB). The “N” means for standard operating temperatures (80°C / 176°F). The “48” refers to Maximum Energy Product as 48 MGOe.
N48 is considered an upper-tier neodymium magnet grade. Neodymium magnets commonly range from N35 to N52, with N35 being weaker and more affordable, while N52 is the strongest widely available grade. N48 is only about 8% weaker than N52, but it is often selected for strong magnetic pull, good value, and slightly better durability than higher grades.
N48 Magnet Specifications
| Property | Value |
|---|---|
| Magnet Grade | N48 |
| Material | Sintered Neodymium Iron Boron (NdFeB) |
| Maximum Energy Product (BHmax) | 46-49 MGOe |
| Remanence (Br) | 13.8-14.2 kGs |
| Coercivity (Hcb) | ≥10.8 kOe |
| 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 |
| Tolerance | ±0.05 mm to ±0.1 mm |
Custom specifications are available upon request.
Key Features of N48 Magnets
Exceptional Strength
N48 magnets provide significantly higher magnetic force than lower-grade neodymium magnets, enabling compact designs without sacrificing performance.
Space-Saving Design
Their high magnetic energy density allows engineers to use smaller magnets while maintaining the required holding force.
Excellent Reliability
Manufactured using premium rare earth materials and strict quality control processes, ensuring consistent magnetic performance.
Precision Machining
Available with tight tolerances and complex geometries for demanding industrial applications.
Corrosion Protection
Multiple coating options are available to improve durability in harsh environments.
Available N48 Magnet Shapes
We manufacture N48 magnets in virtually any shape and dimension.
N48 Disc Magnets
Ideal for sensors, holding systems, electronics, and consumer products.
Available Options:
- Diameter: 1 mm – 200 mm
- Thickness: 0.5 mm – 100 mm
- Axial magnetization
- Diametrical magnetization
N48 Ring Magnets
Commonly used in motors, loudspeakers, magnetic couplings, and medical equipment.
Available Options:
- Inner Diameter: Customized
- Outer Diameter: Customized
- Multi-pole magnetization available
N48 Block Magnets
Suitable for industrial automation, magnetic assemblies, and magnetic separators.
Available Options:
- Rectangular
- Square
- Large industrial blocks
- High pull-force configurations
N48 Tube Magnets
Widely used in filtration systems and magnetic separation equipment.
N48 Countersunk Magnets
Designed for mechanical fastening applications where screws are required.
Custom N48 Magnets
We manufacture custom shapes including:
- Arc Magnets
- Segment Magnets
- Trapezoid Magnets
- Cone Magnets
- Hexagon Magnets
- Micro Magnets
- Large Magnets
- Special OEM Designs
Surface Coating Options
Neodymium magnets require protective coatings to prevent oxidation and corrosion.
Nickel Coating (Ni-Cu-Ni)
- Most popular option
- Bright metallic finish
- Good corrosion resistance
Zinc Coating
- Economical solution
- Suitable for indoor applications
Epoxy Coating
- Excellent moisture resistance
- Black appearance
- Ideal for harsh environments
Gold Coating
- Premium decorative finish
- Enhanced corrosion protection
Custom Coatings
- PTFE
- Parylene
- Phosphating
- Everlube
- Chemical coatings
Applications of N48 Magnets
Electric Motors
N48 magnets improve motor efficiency and power density in:
- Servo motors
- Brushless DC motors
- Industrial motors
- Precision motors
Robotics & Automation
Used in:
- Robotic actuators
- Magnetic grippers
- Position sensors
- Automation systems
Renewable Energy
Suitable for:
- Wind turbine generators
- Magnetic coupling systems
- Energy-efficient equipment
Medical Devices
Applied in:
- Diagnostic equipment
- Medical sensors
- Precision instruments
Electronics Industry
Used for:
- Speakers
- Magnetic switches
- Sensors
- Consumer electronics
Industrial Equipment
Widely used in:
- Magnetic separators
- Magnetic lifting systems
- Holding fixtures
- Manufacturing equipment
N48 vs Other Neodymium Magnet Grades
| Grade | Relative Strength | Typical Applications |
|---|---|---|
| N35 | Standard | General-purpose products |
| N38 | Moderate | Consumer electronics |
| N40 | Higher | Industrial equipment |
| N42 | Strong | Motors and sensors |
| N45 | Very Strong | Automation systems |
| N48 | Ultra Strong | High-performance industrial applications |
| N50 | Premium | Advanced engineering |
| N52 | Maximum Standard | High-end motors and generators |
N48 magnets offer an excellent balance between magnetic strength, availability, and cost-effectiveness, making them one of the most popular grades for industrial OEM projects.
Custom Manufacturing Capabilities
We provide complete custom magnet manufacturing services:
Custom Dimensions
- Micro magnets
- Large industrial magnets
- Ultra-thin magnets
- Special geometries
Custom Magnetization
- Axial
- Diametrical
- Radial
- Multi-pole
- Custom magnetic patterns
Custom Packaging
- OEM packaging
- Industrial bulk packaging
- Export packaging
- Private label packaging
Engineering Support
Our engineering team assists customers with:
- Magnet selection
- Magnetic circuit optimization
- Material recommendations
- Prototype development
Quality Assurance
Every batch of N48 magnets undergoes rigorous inspection including:
- Magnetic flux testing
- Pull force testing
- Dimensional inspection
- Coating thickness verification
- Salt spray testing
- Material composition analysis
Our manufacturing processes comply with international quality standards to ensure consistent product performance.
Why Choose Us as Your N48 Magnet Supplier?
Direct Factory Pricing
Competitive pricing for OEM and wholesale customers.
Custom Manufacturing
Over a decade of experience producing custom neodymium magnets for global industries.
Fast Prototype Development
Rapid sampling and prototyping to accelerate product development.
Global Export Experience
Supplying magnets to customers across North America, Europe, Southeast Asia, and Australia.
Reliable Lead Times
Efficient production scheduling ensures on-time delivery for both small and large orders.
Frequently Asked Questions
N48 is a high-performance neodymium magnet grade with a maximum energy product of approximately 48 MGOe, offering very strong magnetic force in a compact size.
Yes. N48 magnets provide noticeably higher magnetic strength than N42 magnets and are commonly selected for applications requiring maximum performance.
Standard N48 magnets operate up to 80°C. Higher-temperature versions such as N48M, N48H, N48SH, and N48UH are available for elevated temperature applications.
Yes. We provide fully customized N48 magnets in various shapes, sizes, coatings, tolerances, and magnetization directions.
MOQ depends on magnet size, shape, and manufacturing complexity. Contact us with your specifications for a quotation.
Request a Quote
Send us your drawing, dimensions, grade requirements, coating preference, and annual demand. Our engineering team will provide a competitive quotation and professional technical support for your project.