Diametrical magnetized powerful Gold Coated Arc Tile shaped Countersunk Magnets
Product Overview
Customized high temperature resistant Diametrical magnetized powerful Gold Coated Arc Tile shaped Countersunk Magnets , featuring extremely high magnetic strength, excellent demagnetization resistance, and precise dimensional accuracy. The product's precision can be customized according to customer requirements. Its sophisticated ring-shaped design meets high-performance magnetic needs in compact spaces, making it widely applicable in high-end electronic devices, audio equipment, premium perfume bottle caps, and other fields.
This tailor -made long-term reliable high remanence diametrical magnetized powerful gold coated arc tile shaped countersunk magnet is manufactured using advanced wire cutting, center-less grinding, and double-disc grinding processes, ensuring neat edges and uniform dimensions. Surface treatment includes multi-layer metal coating (Ni+Cu+Ni) or optional Ni coating, effectively preventing oxidation and corrosion from environmental factors, thereby extending the product's service life.
These premium quality fast response thermal stability diametrical magnetized powerful gold coated arc tile shaped countersunk magnets exceeded our expectations in high-speed motor applications. The strong magnetic force and precision arc shape made assembly seamless, and the epoxy coating provided excellent durability against corrosion. Ideal for our brushless motor production line
2. Technical Specifications:
Product Name | diametrical magnetized powerful gold coated arc tile shaped countersunk magnet |
Material Grade | N52 (Br ≥ 14.2 kGs, Hcj ≥ 12 kOe) |
Dimension | D20-D20×6 mm (R3) |
Dimensional Tolerance | ±0.05 mm (length/width/thickness) |
Operating Temperature | ≤80℃ (high-temperature versions customizable) |
Density | ≥7.5 g/cm³ |
Surface Magnetic Field | 3200 ± 200 Gauss (measured with Japanese TM-801 Gauss meter)
|
Magnetic Flux Value | 2.3 mWb (measured with fluxmeter) |
3. Manufacturing Process
This high adhesive force precision machined highly durable diametrical magnetized powerful gold coated arc tile shaped countersunk magnet is manufactured through the following key processes:
Wire Cutting: Uses molybdenum/copper wire cutting equipment to achieve ±0.02mm precision for small-batch custom rings.
Centerless Grinding: Refines inner and outer diameters to ensure roundness (±0.05mm tolerance).
Double-Disc Grinding: Controls thickness and parallelism.
4. Appearance & Dimensional Inspection
Visual Inspection: Under standardized lighting, trained QC staff check for cracks, chipping, inclusions, pores, or oxidation.
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.
Magnetic Flux Consistency Test: Fluxmeters or Hall-effect testers measure magnetic flux across batches to ensure uniform performance in end-user applications.
5. Reliability Testing
To ensure 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.
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 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.
7. Why Choose us ？
Dongguan Jinconn New Material Holdings Co., Ltd. is a publicly listed enterprise offering integrated R&D, manufacturing, and sales of rare earth magnets. Based in Xiaohe Industrial Zone, Daojiao Town, Dongguan, we serve clients across China and globally.
⭐20+ years of magnet manufacturing expertise
⭐Strict quality control & customization capability
⭐Multilingual technical support with global delivery
⭐RoHS and REACH compliant
Please contact us for free samples, magnet customization solutions, and MSDSRoHS, ISO 9001, QC080000, IATF 16949, ISO 14001, ISO 27001 or other relevant certificates!
8. 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.
9. 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.
- User name Member Level Quantity Specification Purchase Date
- Satisfaction ：
-
Jinconn WeChat