Professional grade strong magnetic force nickel plated Sintered Arc Segment Magnet

1. Product Overview

Precision customized industrial grade high magnetic force nickle plated sintered arc segment magnet is crafted from premium NdFeB material, offering outstanding remanence (Br), coercivity (Hcj), and maximum energy product (BHmax). It is an ideal choice for high-performance permanent magnet motors such as BLDC motors and wind turbine generators.

The precisely machined arc geometry ensures optimized magnetic flux distribution and seamless rotor integration, significantly boosting motor efficiency, torque density, and energy savings.

Key Advantages:

Exceptional magnetic strength and compact energy density

Consistent magnetic properties for automated assembly lines

Durable Ni-Cu-Ni coating for superior corrosion and oxidation resistance

Customizable in terms of pole pairs, arc angle, thickness, and coatings

2. Technical Specifications

Product Name:Professional grade strong magnetic force nickel plated Sintered Arc Segment Magnet

Magnet Grade: N52  (Br ≥ 14.8 KGs, Hcj ≥ 10.5 KOe) — Customizable

Dimensions: D15 x d8 x H3

Tolerance: ±0.05 mm (Length, Width, Thickness)

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

Density: ≥7.5 g/cm³

Surface Magnetic Field: 2400 Gauss (Measured using Japan TM-801 Gauss meter)

Magnetic Flux: 2.2 mWb (Measured; value varies by material grade)

3. Appearance & Dimensional Inspection

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

Magnetic Flux Consistency Test: Fluxmeters or Hall-effect testers measure magnetic flux across batches to ensure uniform performance in end-user applications.

4. Reliability Testing

To ensure this tailor made industrial grade lightweight super strong nickle plated sintered arc segment 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.

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

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.

We know logistics is more than moving goods — it’s about delivering your promise. Our trusted solutions offer:

Global shipping coverage

Real-time tracking from origin to destination

Enhanced safety at every stage

Dedicated service with customized shipping plans

With our robust land, sea, and air network, your business moves faster, safer, and with complete confidence.

6. FAQ

·  What are neodymium magnets made of?
Neodymium magnets are composed of an alloy of neodymium (Nd), iron (Fe), and boron (B), forming the Nd₂Fe₁₄B crystalline structure.

·  What does the "N" grade (e.g., N35, N52) signify?
The "N" grade indicates the maximum energy product of the magnet, measured in Mega-Gauss Oersteds (MGOe). Higher numbers denote stronger magnetic fields.

·  How do neodymium magnets compare to other types of magnets?
Neodymium magnets are the strongest type of permanent magnets available commercially. They are significantly stronger than ceramic or ferrite magnets. 

7. Application Fields

Industrial Automation Motors

Application Description:
Used as rotor poles in servo motors, robotic joint motors, and precision control motors.

Key Benefits:

Precise magnetic field control improves response speed and positioning accuracy

Enhanced energy efficiency with reduced heat generation and loss

Supports high-frequency, high-speed operation

Home Appliance Motors

Application Description:
Applied in motors for air conditioner compressors, direct drive (DD) washing machines, and inverter compressors in refrigerators.

Key Benefits:

Quiet operation enhances user comfort

Energy-saving performance meets energy efficiency certification standards

Compact size with high power output

 Power Tools

Application Description:
Used in internal rotors of high-speed drills, electric saws, impact wrenches, and similar handheld tools.

Key Benefits:

High torque output improves work efficiency

Compact design for lightweight and easy handling

Prolonged battery life for better portability

8.  Why Choose Us ?

✅ 20+ Years of Magnet Manufacturing Expertise – From concept to mass production

✅ High Consistency Guaranteed – Batch-level QC with full magnetic test reports

✅ Strong Customization Capabilities – Tailored shapes, coatings, and magnetization directions

✅ Certified for Global Compliance – RoHS, REACH, and optional SGS/TÜV certificates

9. Usage Precautions？

⚠ Safety & Handling Guidelines

Handle with care: Neodymium magnets are brittle and can chip or crack if dropped or impacted.

Avoid injury: Always slide magnets apart—do not force or pry them to separate.

Check polarity before use: Incorrect installation may cause malfunction or damage to equipment.

Store properly: Keep in a dry, neutral environment; avoid contact with moisture, acids, or corrosive substances.

Keep away from sensitive electronics: Do not place near hard drives, magnetic cards, pacemakers, or similar devices.

10. Customization & Services

Customizable magnet dimensions, geometry, and surface coatings (including layer count, thickness, and color)

Precision magnetization orientation and adjustable magnetic field intensity

Optional laser marking for logos, part numbers, or traceability codes

Specialized packaging and pull-force testing tailored to your application needs

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.

·  Precision Magnetics, Tailored for Performance.

If you have any magnet-related needs, we offer free customized magnet services. Please feel free to contact us at any time.

Contact Us：
 Phone/WhatsApp/WeChat: +86 13829120676
 Email: Info@jinconn.com
 Address: Xiaohe Industrial Zone, Daojiao Town, Dongguan City, Guangdong Province, China.