Custom size professional grade high coercivity Curved Crescent Shaped gold epoxy coated Ndfeb magnet

2025-7-11

The custom size professional grade  heat resistant high coercivity Curved Crescent Shaped gold epoxy coated Ndfeb magnet is a crescent-shaped neodymium magnet made of NdFeB (Neodymium Iron Boron). It features an elegant gold-plated finish with a polished, lustrous surface. The magnetic strength on the surface typically exceeds 2500 Gauss, with magnetization along the thickness or radial direction. These moon-shaped magnets are ideal for decorative and technical applications, including fridge magnets, hair accessories, model assemblies, photo frames, wall art, and more.

Should you require variations in size, shape, or other specifications, please submit your inquiry with detailed requirements. In addition to dimensional customization, we can also tailor the magnet’s operating temperature, surface coating color, and magnetization direction to suit your specific needs.

2. Technical Specifications

- Product Name: custom size professional grade high coercivity Curved Crescent Shaped gold epoxy coated Ndfeb magnet 

- Magnet Grade: N52 (Br ≥14.2 kGs, Hcj ≥12 kOe)  

- Dimension: Y30mm x 5mm*1mm  

- Dimensional Tolerance: +/-0.05 

- Operating Temperature: ≤80°C (High-temp versions available)  

- Density: ≥7.5 g/cm³  

- Surface Magnetic Field: 3,200 Gs  

- Magnetic Flux : 2.0 mWb  (Fluxmeter-tested)  

3. Surface Treatment & Coating Technology

To enhancethis  customzed professional grade high coercivity Curved moon-shaped gold epoxy coated Ndfeb magnet ‘s corrosion resistance, surface quality, and magnetic stability, the following treatments are used:

Edge Reinforcement: Laser cladding with nickel-based alloy at magnet seams (prevents electrochemical corrosion)

Edge Rounding: Reduces magnetic field distortion

Default Coating: Triple layer Ni-Cu-Ni (customizable)

Standard Thickness: Ni (3μm) + Cu (5μm) + Ni (4μm)

Optional Coatings: Gold or silver plating for better conductivity and corrosion resistance

Coating Benefits:

Salt spray resistance and improved oxidation durability

Higher surface hardness and scratch resistance

Enhanced gloss, suitable for exposed parts

4. Appearance & Dimensional Inspection

 The ways of inspecting this tailor made industrial grade strong pull force high coercivity curved crescent gold epoxy coated ndfeb magnet are as following:

Visual Inspection: Under standardized lighting, trained QC staff check for cracks, chipping, inclusions, pores, or oxidation.

Image Measurement System: High-definition cameras and algorithms conduct non-contact 2D measurements, especially for complex or irregular shapes, ensuring efficiency and objectivity in mass production.

           Automated Intelligent Inspection: High-speed cameras with AI algorithms detect and reject defects (e.g., cracks, scratches, discoloration) and dimensional anomalies, improving yield and reducing human error

5. Packaging & Transportation

Defect Elimination: 100% inspection using calipers, projectors, visual checks, and automated systems to reject cracked, chipped, oxidized, or coated-defective magnets.

Uniform Magnetization & Structured Arrangement: Magnets are uniformly magnetized and arranged for optimal packaging based on customer requirements to ensure performance and facilitate automated assembly.

Vacuum Sealed Packaging: Multi-layer vacuum sealing with moisture barriers, desiccants or nitrogen, prevents corrosion and magnetic interference during storage and shipping.

Customized Outer Packaging: Shock-proof, moisture-resistant, and anti-magnetic leakage packaging (e.g., multilayer cartons, plastic boxes, metal shielding) ensures compliance with international logistics standards. Each box includes a product list, labels, and tracking codes.

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.

Please contact us for free samples, magnet customization solutions, and MSDSRoHS, ISO 9001, QC080000, IATF 16949, ISO 14001, ISO 27001 or other relevant certificates!.

6.  Usage Precautions？

Handle gently: Avoid impacts/drops (brittle material).
Prevent pinching: Slide magnets apart—do not pry.

Polarity check: Install correctly to avoid malfunctions.

Avoid moisture/acids: Store in dry, mild environments.

Keep away from sensitive devices: Hard drives, IC cards, pacemakers, etc.

7. Customization & Services

Custom magnet size, shape, and coating (layers, thickness, color)

Tailored magnetization direction and field strength

Laser engraving service for logos or serial numbers

Packaging and suction force testing for special applications

Please contact us for free samples, magnet customization solutions, and MSDSRoHS, ISO 9001, QC080000, IATF 16949, ISO 14001, ISO 27001 or other relevant certificates!

Phone/WhatsApp: +8614716150318
Email: leo@jinconn.com
Address: Xiaohe Industrial Zone, Daojiao Town, Dongguan City, Guangdong Province, China