Customized high powered 50mm x 3mm sintered Neodymium large Disc Magnet

2025-7-11

1. Product Overview & Application Scenarios

Engineered for applications requiring extraordinary magnetic force, these  customized heat resistant high powered stable 50mm x 3mm sintered Neodymium large Disc Magnets are ideal for industrial applications requiring robust performance.

In the construction and engineering sectors, they serve to:
Anchor structural elements firmly in place

Provide reliable temporary magnetic fastening solutions

Enable accurate alignment of metal components

Their intense magnetic fields play a pivotal role in renewable energy technologies, particularly in wind turbine systems, where they enhance operational efficiency and output.

These magnets are also indispensable in magnetic lifting equipment, ensuring secure and effortless movement of heavy loads.

Built to endure extreme conditions, they deliver unmatched durability and magnetic power for even the most demanding industrial challenges.

2. Technical Specifications

- Product Name: Customized high powered 50mm x 3mm sintered Neodymium large Disc Magnet

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

- Dimension: D50*3

- Dimensional Tolerance: +/-0.05 

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

- Density: ≥7.5 g/cm³  

- Surface Magnetic Field: 4,500 Gs  

- Magnetic Flux : 2.0 mWb  (Fluxmeter-tested)  

3.  Surface Treatment & Coating Technology

To enhance these customized high duty strong magnetic force  50mm x 3mm sintered Neodymium large Disc Magnet 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

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.

5. Reliability Testing

Impact & Vibration Test: Simulates shipping and usage conditions to ensure operational stability.

Constant Temperature & Humidity Test: Performed under 85°C and 85% RH for 96–500 hours. Performance and appearance are compared before and after testing.

6. 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 trade

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.

9. 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.

10. 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