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High-Performance Magnets & Assemblies

Premium NdFeB, SmCo, AlNiCo, Ferrite Magnets and Custom Magnetic Solutions for Industrial, Medical, Automotive & Renewable Energy Applications

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About Sine Magnetic

Ningbo Sine Magnetic Co., Ltd. is a professional manufacturer engaged in the research, development, and production of high-performance permanent magnets and magnetic assemblies. With years of expertise, we specialize in Neodymium magnets (NdFeB), Samarium Cobalt (SmCo), Alnico, Ferrite (Ceramic) magnets, and custom magnetic devices.

Our products are widely used in motors, generators, sensors, medical equipment, industrial automation, renewable energy systems, and more. We serve clients globally with consistent quality, technical support, and on-time delivery.

  • ISO-Certified Manufacturing
  • Global Export Experience
  • Custom Design & Engineering Support
Sine Magnetic Manufacturing Facility

Our Products

From raw magnetic materials to fully assembled components, we offer a comprehensive range of permanent magnets and magnetic devices for diverse industrial applications.

NdFeB Magnets

NdFeB Magnets

High-strength sintered and bonded neodymium magnets with excellent energy density. Ideal for motors, sensors, and high-performance applications.

  • Grades: N35-N52, 35H-52H
  • Max Operating Temp: 80°C–220°C
  • Coatings: Ni-Cu-Ni, Zn, Epoxy
SmCo Magnets

SmCo Magnets

Samarium Cobalt magnets offering high temperature stability and excellent corrosion resistance. Suitable for aerospace and defense.

  • Series: SmCo5, Sm2Co17
  • Operating Temp: Up to 350°C
  • High Coercivity & Stability
AlNiCo Magnets

AlNiCo Magnets

Temperature-stable Alnico magnets with high residual induction. Commonly used in sensors, meters, and guitar pickups.

  • Cast & Sintered Types
  • Temp Stability: Up to 525°C
  • Reversible Temp Coefficient
Ferrite Magnets

Ferrite Magnets

Cost-effective ceramic magnets with good corrosion resistance. Widely used in motors, speakers, and magnetic separators.

  • Anisotropic & Isotropic
  • Low Cost, High Volume
  • Operating Temp: Up to 250°C
Magnetic Assemblies

Magnetic Assemblies

Custom-engineered magnetic systems including motor rotors, sensor triggers, and holding devices with housings and adhesives.

  • Multi-pole Magnetization
  • Adhesive & Mechanical Fixing
  • IP67 Sealed Options
Magnetic Filters

Magnetic Filter Equipment

Industrial magnetic separators for removing ferrous contaminants from liquids and powders in food, chemical, and plastic industries.

  • Magnetic Filter Bars
  • Grate Magnets
  • High Gauss Strength
Pot Magnets

Pot Magnets

Encased magnets with steel cups to enhance pull force. Used in holding, lifting, and fixturing applications.

  • Threaded Stud or Hook
  • High Pull Force
  • Weather Resistant
Magnetic Couplings

Magnetic Couplings

Hermetically sealed torque transmission devices for pumps, mixers, and vacuum systems without physical contact.

  • Torque Range: 0.1–500 Nm
  • Hermetic Seal
  • Zero Maintenance

Why Choose Sine Magnetic?

Engineered for performance, reliability, and innovation

Quality Assurance

ISO-compliant processes with rigorous testing for magnetic properties, coating integrity, and dimensional accuracy.

Global Support

Serving customers in North America, Europe, Asia, and beyond with fast response and technical assistance.

Custom Solutions

From prototype to mass production, we support custom shapes, coatings, magnetization patterns, and assemblies.

On-Time Delivery

Efficient production planning and logistics ensure your orders are delivered on schedule, every time.

15+
Years Experience
50+
Countries Served
10M+
Magnets Shipped
99.2%
Customer Satisfaction

Frequently Asked Questions

What types of magnets do you manufacture?

We produce NdFeB (Neodymium), SmCo (Samarium Cobalt), AlNiCo, and Ferrite (Ceramic) magnets, as well as custom magnetic assemblies and devices.

Can you provide custom magnet shapes and sizes?

Yes, we offer full customization including CNC machining, wire cutting, and grinding to meet your exact specifications.

What coatings are available for NdFeB magnets?

We offer Ni-Cu-Ni (nickel), zinc, epoxy, gold, silver, and Parylene coatings depending on environmental requirements.

Do you offer magnetic assemblies?

Yes, we design and manufacture complete magnetic assemblies including motor rotors, sensor triggers, magnetic couplings, and holding systems.

What is the lead time for custom orders?

Typical lead time is 15–25 days depending on complexity and quantity. We provide expedited options for urgent needs.

Get in Touch

For inquiries about our products, custom solutions, or pricelist, please visit our official website to contact us directly.

Contact Information

Phone: 86-574-82809157 / 86-574-82809158

Email: [email protected]

Fax: 86-574-82809159

Company: Ningbo Sine Magnetic Co., Ltd.

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