Quality Control

Every Magnet is Verified Before It Reaches Your Production Line

In industrial applications, a small variation in magnetic strength or dimensions can lead to assembly failures, reduced equipment efficiency, or inconsistent product performance. Our quality control system is designed to eliminate these risks by monitoring every critical manufacturing stage-from raw material inspection to final packaging.

Rather than relying on random sampling alone, we combine process control, magnetic testing, dimensional inspection, and batch traceability to deliver magnets with consistent quality for long-term OEM supply. Backed by internationally recognized manufacturing standards including ISO 9001, IATF 16949, RoHS, and REACH, our processes ensure uncompromised reliability for global supply chains.

 

The performance of a permanent magnet depends on the quality of its raw materials. Before production begins, incoming materials are inspected to verify their chemical composition and physical properties against production requirements.
Only qualified materials are released into manufacturing, helping ensure stable magnetic performance across different production batches.

 

Every manufacturing process is monitored according to standardized operating procedures. Critical production stages-including pressing, sintering, machining, grinding, coating, and magnetization-are inspected to maintain dimensional accuracy and product consistency.
By controlling quality during production instead of only after production, we reduce defects before they occur.

Process Control Includes

• Process parameter monitoring
• Dimensional inspection
• Surface finish verification
• Coating process inspection
• Production record documentation

Benefits for Customers

• Better assembly compatibility
• Consistent dimensions for automated production
• Lower rejection rates during manufacturing

 

Every production batch is tested using calibrated magnetic measuring equipment to verify that the finished magnets meet the required magnetic specifications.

Depending on customer requirements, magnets are tested for their magnetic strength, coercivity, energy product, and magnetization direction before shipment.

Testing Items

• Residual Flux Density (Br)
• Coercive Force (Hcb)
• Intrinsic Coercivity (Hcj)
• Maximum Energy Product (BHmax)
• Surface Magnetic Flux (Gauss)
• Magnetization Direction

Benefits for Customers

• Reliable magnetic performance
• Stable operation in motors, sensors, generators, and magnetic assemblies
• Reduced risk of inconsistent magnetic output

 

Accurate dimensions are essential for magnets used in automated equipment, precision assemblies, and high-volume manufacturing.

Finished products are measured using precision inspection equipment to verify compliance with customer drawings and tolerance requirements.

 

Protective coatings play an important role in extending the service life of permanent magnets, especially in humid or corrosive environments.
Each production batch is inspected to verify coating quality before shipment.
Available Coatings
Nickel (Ni-Cu-Ni)
Zinc
Epoxy
Gold
Phosphate
Customized coatings

Inspection Includes

• Coating thickness
• Surface appearance
• Coating adhesion
• Salt spray testing when required

Benefits for Customers

• Improved corrosion resistance
• Longer service life
• Better reliability in demanding applications

 

Before every shipment, finished products undergo a final inspection to verify compliance with customer specifications.

The inspection team checks product quality, quantity, labeling, and packaging to ensure the delivered products match the purchase order.

 

Every production batch is assigned a unique identification code that links finished products with raw materials, manufacturing records, inspection reports, and shipment information.

This traceability allows quality records to be retrieved quickly and supports customers requiring stable long-term supply for OEM manufacturing.

Traceable Information

 

Whether supplying standard permanent magnets or custom magnetic assemblies, our quality management process is built around consistency rather than one-time inspection. By controlling material quality, manufacturing accuracy, magnetic performance, and final verification, we help customers reduce production risks, improve assembly efficiency, and maintain reliable performance in applications such as electric motors, automotive systems, industrial automation, renewable energy equipment, medical devices, sensors, consumer electronics, and magnetic holding systems.