Name: China Rare Earth Cube Magnets Manufacturers Factory - Customized Rare Earth Cube Magnets - Jinconn
Brand: Jinconn
SKU: 293896143

Description

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Product Overview & Application Scenarios

Rare earth cube magnet is made of rare earth neodymium, the specific size is 12mm in length and width, 8mm in thickness. The direction of magnetizing is thickness, so the strongest face is length x width(12 x 12mm), one is N pole, other is S pole. We can ensure the quality of our magnet, not only the specification, but also the performance is great. Different magnets their application range is not the same, our company can be customized according to customer needs to provide different shapes and sizes of magnets

Technical Specifications

Product Name	rare earth cube magnet
Magnet Grade	N52 (Br ≥14.2 kGs, Hcj ≥12 kOe)
Dimension	L12128mm
Dimensional Tolerance	+/-0.05
Operating Temperature	≤80°C (High-temp versions available)
Density	≥7.5 g/cm³
Surface Magnetic Field	2,800 Gs
Magnetic Flux	2.0 mWb (Fluxmeter-tested)

2.1 N-Grade

N grades refer to standard neodymium magnet grades that focus on maximum magnetic strength under normal temperature conditions.

High magnetic force for compact and efficient designs

Standard operating temperature up to 80°C

Cost-effective compared with high-temperature grades

Suitable for general industrial, consumer, and motor applications

▲ Summary
N grades are ideal when strong magnetic performance is required without exposure to high temperatures.

Manufacturing Process

Rapid Solidification (Strip Casting)

The molten alloy is rapidly cooled through strip casting to form thin alloy flakes with a refined and uniform microstructure, laying the foundation for excellent magnetic properties.

Hydrogen Decrepitation

The alloy flakes are exposed to hydrogen gas, causing them to fracture into coarse powder. This controlled process improves material brittleness and prepares the alloy for fine particle refinement.

Fine Powder Milling

The coarse powder is micronized using jet milling in an inert atmosphere. Accurate control of particle size and distribution is essential for high coercivity and effective grain alignment.

Packaging & Transportation

100% Inspection: Defective magnets fully removed.
Uniform Magnetization: Consistent performance and easy assembly.
Vacuum Sealed: Moisture and corrosion protection.
Protective Packaging: Shock-proof, moisture-resistant, and compliant for shipping.

With deep expertise in magnetic materials, we deliver solutions for industries like EVs, smart manufacturing, and electronics. Our strong technical capabilities and product consistency have earned the trust of customers worldwide.

Customization & Technical Services

We provide a full suite of customization solutions:

Custom shapes, dimensions, and coating systems
Tailored magnetization directions and magnetic field strength
Laser marking for branding and traceability
Pull-force testing and application-specific packaging
Engineering guidance for design optimization and performance enhancement

Backed by strong material science expertise, we serve industries including EVs, automation, consumer electronics, robotics, and renewable energy.

FAQ

Q1. How is magnetic flux loss quantitatively measured after reliability testing?

Magnetic flux loss is measured using calibrated flux meters or Helmholtz coil systems. Measurements are taken before and after reliability tests, and percentage loss is calculated to distinguish reversible and irreversible demagnetization.

Q2. What temperature ranges are typically used for high-temperature aging tests?

High-temperature aging tests are commonly conducted between 100°C and 200°C, depending on magnet grade and application requirements. Automotive-grade magnets may be tested at even higher temperatures to ensure safety margins.

Q3. How do you differentiate reversible and irreversible demagnetization during testing?

Magnets are re-magnetized after thermal exposure. Any magnetic performance loss recovered after re-magnetization is classified as reversible, while remaining loss is considered irreversible.