General Magnetic | Neodymium, Ceramic, Alnico & SmCo Magnets Manufacturer

About General Magnetic

Ningbo Hehai Electric Co., Ltd (General Magnetic) is a professional magnet manufacturer specializing in custom permanent magnets for industrial and technological applications.

We focus on difficult custom magnet manufacturing with high quality and tight tolerance requirements. Our magnets are widely used in sensors, automotive motors, electric vehicles, consumer electronics, and industrial automation systems.

10+

Years Experience

50+

Global Clients

98%

Customer Retention

Factory interior with magnet production equipment

Our Magnet Products

Precision-engineered permanent magnets for demanding applications. Custom shapes, sizes, coatings and magnetization patterns available.

Neodymium Magnet

High-strength NdFeB magnets with exceptional magnetic properties. Available in various grades and temperature ratings.

N35-N52 Grades
Various Coatings
Custom Shapes

Ceramic Magnet

Ferrite magnets offering excellent value with good resistance to demagnetization and corrosion.

C1-C10 Grades
Isotropic & Anisotropic
Cost-Effective

Alnico Magnet

Temperature-stable magnets with excellent corrosion resistance. Ideal for sensors and instruments.

High Temp Stability
Corrosion Resistant
Precise Tolerances

SmCo Magnet

Samarium Cobalt magnets with exceptional temperature performance and corrosion resistance.

High Temp Grades
Excellent Stability
Corrosion Resistant

Block Magnets

Precision rectangular and square magnets in various materials and coatings for industrial applications.

Neodymium & Ceramic
Tight Tolerances
Custom Sizes

Ring Magnets

Axially or radially magnetized ring magnets for motors, sensors, and holding applications.

Various Diameters
Multiple Magnetizations
Countersunk Options

Tiny Magnets

Miniature and micro magnets for electronics, medical devices, and precision instruments.

Sub-Millimeter Sizes
High Precision
Custom Specifications

Multipole Magnets

Complex magnetization patterns for encoders, sensors, and specialized motor applications.

Custom Pole Patterns
Precision Alignment
Various Substrates

Disc Magnets

Round magnets in various diameters and thicknesses for holding, sensing, and motor applications.

Multiple Materials
Precision Ground
Custom Coatings

Rod Magnets

Cylindrical magnets for magnetic separators, sensors, and holding applications.

Various Lengths
Diameters Available
End Configurations

Irregular Shapes

Custom-shaped magnets for specialized applications requiring unique geometries.

Complex Geometries
Prototyping Support
Engineering Assistance

Magnetic Assemblies

Complete magnetic solutions including cup magnets, pot magnets, and custom assemblies.

Cup & Pot Magnets
Mounting Options
Integrated Solutions

View All Products

Why Choose General Magnetic?

We combine advanced manufacturing capabilities with engineering expertise to deliver superior magnetic solutions.

Advanced Manufacturing

State-of-the-art production facilities with precision tooling and quality control systems ensure consistent performance and reliability.

Tight Tolerances

Specialization in difficult custom magnets with tight dimensional tolerances for precision applications in demanding environments.

Material Expertise

Deep knowledge of neodymium, ceramic, alnico, and SmCo materials enables optimal material selection for your specific application.

Custom Solutions

Engineering support for custom magnet designs, including complex shapes, specialized coatings, and unique magnetization patterns.

Quality Assurance

Rigorous quality control processes including dimensional inspection, magnetic property testing, and environmental testing.

Global Support

International shipping and customer support with experience serving clients across North America, Europe, and Asia.

Applications

Our magnets power innovation across industries, from electric vehicles to advanced electronics.

Electric Vehicles

Motors, sensors, and charging systems

Industrial Automation

Motors, encoders, and positioning systems

Consumer Electronics

Speakers, sensors, and haptic feedback

Medical Devices

Imaging equipment and diagnostic tools

Frequently Asked Questions

Answers to common questions about our magnets and services.

What types of magnets do you manufacture?

We manufacture neodymium (NdFeB), ceramic (ferrite), alnico, and samarium cobalt (SmCo) magnets. We also produce specialized products like multipole magnets, tiny magnets, and magnetic assemblies including cup magnets.

Can you produce custom magnet shapes?

Yes, we specialize in custom magnet manufacturing. We can produce block, disc, ring, rod, countersink, irregular, and other specialized shapes according to your specifications and drawings.

What coatings do you offer for neodymium magnets?

We offer nickel plating, zinc plating, gold plating, and epoxy coating for neodymium magnets to provide corrosion protection and enhance performance in various environments.

What industries do you serve?

Our magnets are used in electric vehicles, automotive motors, sensors, consumer electronics, industrial automation, medical devices, and renewable energy systems.

What is your minimum order quantity?

We accommodate both prototype/small quantity orders and large volume production. Contact us with your requirements and we'll provide appropriate solutions.

How do I request a quote?

Please visit our official website to submit your inquiry with details about the magnet specifications, quantities, and application requirements.

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Precision Magnets for Modern Industry