Ferrite Magnet For Spindle Motor

The Ferrite Magnet for Spindle Motor is engineered to deliver stable magnetic flux, reliable rotation performance, and long-term durability in high-speed spindle systems. Manufactured from high-purity strontium ferrite, this magnet offers strong coercivity, excellent resistance to demagnetization, and consistent operation across wide temperature ranges. Its uniform magnetization and precise dimensional control ensure smooth spindle rotation, low vibration, and efficient power output. Designed for cost-effective, high-volume motor production, this ferrite magnet provides robust performance and long service life in spindle motor assemblies.

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Technical Specifications

Physical properties	Unit	Value
Curie Temperature	℃	450
Maximum Operating Temperature	℃	250
Hardness	Hv	480-580
Density	g/cm³	4.8-4.9
Relative Recoil Permeability	u rec	1.05-1.20
Temperature Coefficient of Br	%/℃	-0.2
Temperature Coefficient of iHc	%/℃	0.3
Tensile Strength	N/mm²	<100
Transverse Rupture Strength	N/mm²	300
Resistivity	Ω.cm	>104
Specific Heat	cal/g.℃	0.15-0.2
Deflective Strength T	kgf/mm²	5-10

Customization Process

Technical Consultation & Requirement Confirmation

We begin by reviewing your drawings, motor specifications, magnetization needs, tolerance requirements, and application conditions. Our engineers provide professional recommendations on ferrite grade, shape feasibility, and magnetic performance.

Mold Development & Sample Production

After confirming specifications, we proceed with mold design and manufacturing. Samples are produced for testing, including magnetic flux measurement, dimensional inspection, and performance validation to ensure full compatibility with your spindle motor.

Mass Production & Quality Assurance

Once samples are approved, we enter batch production under strict QC standards. Each production lot undergoes magnetic testing, tolerance inspection, and consistency checks to guarantee stable, reliable performance in high-speed spindle motor applications.

FAQ

Can ferrite magnets handle high-speed spindle motor operation?
Yes. Our ferrite magnets are engineered with precise tolerances and uniform magnetization, ensuring stable rotation and low vibration in high-speed spindle applications.

What magnet shapes are available for spindle motors?
Common shapes include rings, arcs, tiles, and custom-designed forms. We can match your motor housing and rotor structure exactly.

Do you support custom tolerances for spindle motor components?
Yes. We provide tight tolerances (typically ±0.05–0.1 mm depending on size), suitable for precision machining and high-speed motor assemblies.

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