Product Overview & Application Scenarios
These heavy duty bar magnets are perfect for tasks at home, such as securing cabinet doors, creating tool organisers, or developing custom magnetic storage solutions. Their robust magnetic force makes them a mainstay in manufacturing, engineering, and product design, where precision and reliability are paramount. Additionally, these high adhesive force heavt duty bar magnets for motor are frequently used in scientific research to hold experimental setups securely in place and in construction to assist in positioning heavy materials during fabrication. Used across a diverse range of industries, these magnets are a reliable choice for both everyday and specialised applications.
Technical Specifications
|
Product Name |
Heavy duty bar magnets |
|
Magnet Grade |
N52 (Br ≥14.2 kGs, Hcj ≥12 kOe) |
|
Dimension |
L30*10*2mm |
|
Dimensional Tolerance |
+/-0.05 |
|
Operating Temperature |
≤80°C (High-temp versions available) |
|
Density |
≥7.5 g/cm³ |
|
Surface Magnetic Field |
2,700 Gs |
|
Magnetic Flux |
2.0 mWb (Fluxmeter-tested) |
Surface Treatment & Coating Technology
To enhance these industrial use heavy duty bar neodymium magnets'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
Quality Control & Reliability Verification – In-Process
Raw material and sintered magnet property verification
In-process dimensional and visual inspections
Coating thickness and uniformity checks
Routine environmental and mechanical reliability sampling
Packaging & Transportation
● Magnet spacing and orientation are optimized to control external magnetic fields.
● Protective layers prevent direct contact and magnetic collision.
● Inner and outer packaging structures provide structural strength and shielding support.
● Packaging configurations support safe air, sea, and land transportation when required.
FAQ
Q1. How does pressing orientation affect anisotropy and batch repeatability?
Answer:Inconsistent pressing alignment causes uneven grain orientation, leading to variation in Br and coercivity. This directly affects batch-to-batch consistency, especially in high-performance and high-coercivity grades.
Q2. Why is magnet thickness often more critical than grade selection?
Answer:Thickness improves operating point stability by reducing internal demagnetizing fields. A thicker magnet with a slightly lower grade can outperform a thinner, higher-grade magnet in real assemblies.
Q3. How do micro-cracks influence long-term magnetic performance?
Answer:Micro-cracks act as corrosion initiation sites and stress concentrators. Over time, they can propagate under thermal cycling, causing gradual loss of magnetic performance even when initial inspection passes.
We're here to help!
Phone/WhatsApp/WeChat: +86 13829120676
Email: info@jinconn.com
Website: www.jinconnmagnet.com
Address: Xiaohe Industrial Zone, Daojiao Town, Dongguan City, Guangdong, China
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