Product Overview & Application Scenarios

Premium Star-Shaped Magnet – High Performance and Elegant Design

This Precision customized star shaped magnet exemplifies both superior functionality and refined aesthetics, making it an exceptional choice for a wide range of industrial and decorative applications. Manufactured using high-grade rare earth materials, it delivers outstanding magnetic strength, ensuring secure and reliable attachment even under demanding conditions. The magnet features a dual-tone finish: a sleek metallic surface combined with a rose gold-plated edge, which not only enhances its corrosion resistance but also adds a premium visual appeal.

Available in multiple sizes, this high quality star shaped magnet offers versatility for diverse needs-from precision engineering and packaging to luxury gift items and innovative branding. Its precise five-point geometry ensures consistent performance and minimal demagnetization over time. Designed for both durability and style, it retains its magnetic integrity even in high-humidity or high-temperature environments.

Technical Specifications

Product Name	star shaped magnets
Magnet Grade	N52 (Br ≥14.2 kGs, Hcj ≥12 kOe)
Dimension	L8x4x3mm
Dimensional Tolerance	+/-0.05
Operating Temperature	≤80°C (High-temp versions available)
Density	≥7.5 g/cm³
Surface Magnetic Field	3,500 Gs
Magnetic Flux	2.0 mWb (Fluxmeter-tested)

Application Scenarios

Home Decoration

Refrigerator Magnets: Elegant and practical, serving both decorative and functional purposes.

Wall Decoration Magnetic Stickers: Can be creatively arranged with metal boards.

Creative Photo Frame Hangers: Used as magnetic fasteners for photo walls.

Functional Storage

Magnetic Hook Base: Combines the star shape with both decorative and practical value.

Magnetic Key Holder: Ideal for entryways to attach and organize keys.

Cultural & Gift Sector

Gift Packaging

Premium Magnetic Gift Box Fasteners: Enhances the quality of gift or stationery boxes.

Custom Souvenirs: Can be printed with logos or patterns, ideal for trade shows or corporate gifts.

DIY Crafting / Creative Design

Magnetic Craft Components: Suitable for puzzles, star-themed art, and other creative assemblies.

Cultural Blind Box Accessories: Used as collectible or combinable components in designer blind boxes.

Education & Experimentation

Teaching Aids

Shape Recognition Tools: Helps children learn to identify five-pointed stars and experience magnetism.

Magnetic Experiment Kits: Suitable for physics demonstrations on magnetism and magnetic fields in middle and high school.

STEAM Educational Materials

Assembly-Type Teaching Components: Used with other magnetic elements for building and structural design projects.

Surface Treatment & Coating Technology

Surface treatment of NdFeB magnets is primarily aimed at enhancing corrosion resistance, improving surface integrity, and extending service life across a wide range of operating conditions.

Surface Preparation:
Prior to coating, magnets undergo precision grinding, edge conditioning, ultrasonic cleaning, and chemical activation to eliminate surface contaminants and ensure optimal coating adhesion.

Coating Systems:

Ni–Cu–Ni Plating: The most widely adopted coating, providing balanced corrosion protection, strong adhesion, and good wear resistance.
Epoxy Coating: Offers superior resistance to moisture, salt spray, and chemical exposure, suitable for harsh environments.
Zinc Plating: A cost-effective option for moderate corrosion protection in controlled environments.
Parylene Coating: A conformal, pinhole-free polymer coating ideal for medical, vacuum, and cleanroom applications.

Advanced Edge Treatments:
For high-reliability applications, additional measures such as edge rounding and localized alloy reinforcement may be applied to reduce stress concentration and prevent localized corrosion initiation.

Appearance & Dimensional Inspection

Inspection Objective
Verify surface integrity and appearance conformity of NdFeB magnets prior to release.

Surface and Coating Condition
Check for cracks, chips, scratches, pores, corrosion, and coating defects such as peeling, pinholes, or uneven coverage.

Edge and Geometry Quality
Confirm proper chamfering and absence of burrs, edge breakage, or machining damage.

Cleanliness Control
Ensure surfaces are free from oil, particles, moisture, and handling residues.

Standards and Acceptance
Inspection is conducted under controlled conditions in accordance with defined sampling plans and approved quality specifications.

Reliability Testing

To ensure this high energy density star shaped magnet maintain excellent corrosion resistance in complex or harsh environments, the salt spray test is an essential accelerated aging method. It simulates long-term exposure to marine climates, industrial pollution, humidity, or acidic and alkaline conditions, allowing for a reliable evaluation of the protective performance and durability of the magnet's surface coating.

Visual and Dimensional Inspection:
Surface condition and dimensional accuracy are verified under controlled lighting using calibrated measurement tools and optical inspection systems.

Coating Evaluation:
Testing includes coating thickness measurement, adhesion testing, and cross-hatch evaluation to ensure coating uniformity and durability.

Environmental Resistance Testing:
Magnets undergo salt spray, humidity, and thermal exposure tests to assess corrosion resistance and coating stability under simulated service conditions.