Gainer International (China) Limited | Advanced Magnetic Solutions

Engineered for Performance

Gainer International (China) Limited is a professional enterprise specialized in magnetic products and magnetic materials. We are committed to delivering innovative, reliable, and high-performance magnetic solutions for a wide range of industrial and technological applications.

With over two decades of manufacturing experience and a strong R&D foundation, we produce Injection Ferrite Magnets, Injection NdFeB Magnets, Sintered NdFeB Magnets, and Bonded NdFeB Magnets using advanced processes and strict quality control.

20+

Years Experience

300+

R&D Engineers

200+

Technical Patents

108+

Production Lines

Our Product Portfolio

We offer a comprehensive range of high-performance magnetic materials and components engineered for precision, durability, and efficiency across industries.

Injection Ferrite Magnet Ring

High-precision ferrite rings for motors and sensors, produced via injection molding for complex geometries and tight tolerances.

High temperature resistance
Excellent dimensional accuracy
Cost-effective mass production

Injection Ferrite – Other Shapes

Custom-shaped ferrite magnets for specialized applications including sensors, actuators, and consumer electronics.

Complex 3D geometries
Multi-pole magnetization
High volume consistency

Injection NdFeB Magnet Ring

High-energy neodymium rings with isotropic properties, ideal for small motors, encoders, and precision instruments.

High magnetic energy
Corrosion-resistant coating
Net-shape molding

Injection NdFeB – Other Shapes

Custom injection-molded NdFeB magnets for automotive, medical, and industrial applications requiring high performance.

High remanence & coercivity
Multi-pole magnetization
Miniaturization capability

Sintered NdFeB Magnets

High-performance sintered neodymium magnets with superior magnetic properties for demanding applications.

Maximum energy product up to 55MGOe
Various grades (N35-N55, 35H-52H)
Custom coatings (Ni-Cu-Ni, Zn, Epoxy)

NdFeB Magnetic Components

Fully assembled magnetic systems including rotors, sensor assemblies, and motor components with precision integration.

Multi-material integration
Automated assembly
Quality traceability

Halbach Magnetic Array

Engineered magnetic arrays that enhance field strength on one side while canceling it on the other for linear and rotary systems.

Enhanced field concentration
Custom pole configurations
Precision alignment

MagSafe Magnets

Precision-engineered magnet rings and assemblies for magnetic charging and attachment systems in consumer electronics.

Exact OEM specifications
Multi-pole ring design
High durability & alignment

Bonded NdFeB Magnet Ring for Sensor

High-precision sensor rings with consistent magnetic fields for position, speed, and rotation detection.

High signal stability
Tight tolerance control
Multi-pole encoding

Bonded NdFeB Magnets

Flexible manufacturing of complex bonded neodymium magnets using compression or injection molding techniques.

Isotropic and anisotropic options
High dimensional accuracy
Low tooling cost

Why Choose Gainer?

Advanced manufacturing, deep expertise, and global reliability in every magnet we produce.

R&D Driven

300+ engineers and 200+ technical patents ensure continuous innovation and customized solutions.

Automated Production

108+ automatic lines ensure consistency, scalability, and high yield for global supply.

Quality Assured

Strict ISO-compliant processes with full traceability from raw material to final product.

Global Support

Serving customers worldwide with responsive technical support and logistics.

Frequently Asked Questions

What types of magnetic materials do you manufacture?

We specialize in Injection Ferrite, Injection NdFeB, Sintered NdFeB, Bonded NdFeB, and custom magnetic assemblies including Halbach arrays and MagSafe-compatible components.

Can you produce custom-shaped magnets?

Yes, our injection and bonded molding processes allow for complex 3D geometries and tight tolerances. We support full custom design and tooling development.

Do you offer magnetization in multi-pole patterns?

Yes, we provide precise multi-pole magnetization for sensor rings, motor rotors, and encoder applications using advanced magnetizing fixtures.

What quality standards do you follow?

Our manufacturing processes comply with international quality standards, including full material traceability, in-process inspections, and final testing for magnetic and dimensional properties.

Can you supply magnetic components, not just raw magnets?

Yes, we offer fully assembled magnetic components including rotors, sensor modules, and integrated magnetic systems with housings, shafts, and adhesives.

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Precision Magnetic
Solutions from China

Engineered for Performance