Product Overview & Application Scenarios
Engineered for applications requiring outstanding magnetic power, these precision customized high adhesive force black epoxy coating disc magnets are ideal for demanding industrial operations. In construction and engineering, they are employed to hold structural elements, create temporary magnetic supports, and align metal components with high precision. Their intense magnetic fields also play a crucial role in wind turbines and other large-scale renewable energy systems, enhancing performance and energy efficiency. Moreover, they are extensively utilized in magnetic lifting equipment, ensuring the safe and efficient movement of heavy loads. Built for strength and durability, these heat resistant black epoxy coated disc magnets are designed to perform reliably even in the most challenging working conditions.
Technical Specifications
|
Product Name |
black epoxy coated disc magnets |
|
Magnet Grade |
N35 (Br ≥11.8 kGs, Hcj ≥12 kOe) |
|
Dimension |
D35*5mm |
|
Dimensional Tolerance |
+/-0.04 |
|
Operating Temperature |
≤80°C (High-temp versions available) |
|
Density |
≥7.5 g/cm³ |
|
Surface Magnetic Field |
3,100 Gs |
|
Magnetic Flux |
2.0 mWb (Fluxmeter-tested) |
Production Process
High-purity rare earth materials are melted and cast into alloy strips
Alloy is crushed and milled into fine powder
Powder is aligned in a magnetic field and pressed into shape
Compacts are sintered and heat-treated to achieve required magnetic properties
Final machining, magnetization, and performance testing
Surface Treatment Technology
Magnets undergo surface cleaning and pretreatment
Protective coatings are applied to prevent corrosion
Available coatings include Ni-Cu-Ni, Zinc, Epoxy, and special coatings upon request
Coated magnets are inspected for adhesion, thickness, and corrosion resistance
Handling & Application Notes
Avoid tensile stress concentration
NdFeB magnets have low tensile strength and may fracture under uneven clamping or localized stress during assembly.
01
Control operating temperature limits
Exceeding the specified maximum working temperature may result in irreversible demagnetization.
02
Account for coating integrity during assembly
Scratching or damaging the coating may significantly reduce corrosion resistance and service life.
03
Prevent unintended magnetic short circuits
Improper placement near ferromagnetic components may alter magnetic flux paths and degrade system performance.
04
Use non-magnetic tools where applicable
Handling with ferromagnetic tools can cause sudden attraction and surface damage.
05
Custom Engineering & Support Options
Grade selection based on operating conditions
Magnet grade is optimized considering temperature, demagnetizing field, and lifetime requirements.
Tolerance and magnetic consistency control
Dimensional and magnetic variations are managed to meet system balance and performance requirements.
Prototype and pre-series support
Sampling, pilot runs, and design iteration support are available for development-stage projects.
FAQ
Q.How do supply chain risks affect NdFeB magnet projects?
Rare earth price volatility, export controls, and capacity constraints can impact lead time and cost. Strategic suppliers mitigate risk through:
Multi-source raw materials
Inventory buffering
Dy/Tb reduction technologies
Long-term supply agreements
Q.How can magnet design reduce total system cost?
Optimized magnet design can:
Reduce magnet volume
Lower heavy rare earth usage
Improve motor efficiency
Simplify assembly
Total system cost is often reduced even if unit magnet price increases slightly.
▲ 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.
Contact Us：
Phone/WhatsApp/WeChat: +86 13829120676
Email: Info@jinconn.com
Address: Xiaohe Industrial Zone, Daojiao Town, Dongguan City, Guangdong Province, China.
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