Product Overview & Application Scenarios
These Nickel plating cylindrical magnets serve as a highly adaptable option for a wide range of DIY applications, combining strong magnetic force with a streamlined rod-like form. They are perfect for designing custom magnetic fasteners, holding household objects in place, or organising tools in a workshop. In more technical environments, such magnets are commonly utilised in the automotive sector for sensors and fuel systems, where their precise geometry ensures consistent functionality. They also play an essential part in small motor production, contributing to enhanced efficiency and durability. With the ability to perform effectively in both everyday domestic uses and demanding industrial settings, these magnets stand out as a reliable and indispensable component

Technical Specifications
|
Product Name |
Nickel plating cylindrical magnets |
|
Magnet Grade |
N35 (Br ≥11.8kGs, Hcj ≥12 kOe) |
|
Dimension |
N35-D18*30 |
|
Dimensional Tolerance |
+/-0.05 |
|
Operating Temperature |
≤80°C (High-temp versions available) |
|
Density |
≥7.5 g/cm³ |
|
Surface Magnetic Field |
3,300 Gs |
|
Magnetic Flux |
2.0 mWb (Fluxmeter-tested) |
Manufacturing Process
The manufacturing process of this nickel-plating cylindrical magnets are as following:
● Raw Material Preparation
Selection and proportioning of rare earth and metal materials.
● Melting & Alloying
Materials are melted and alloyed under controlled conditions.
● Powder Making & Pressing
The alloy is crushed into powder and pressed into shape in a magnetic field.
● Sintering & Heat Treatment
High-temperature sintering and heat treatment to achieve required magnetic properties.
● Machining & Coating
Magnets are machined to size and coated for corrosion protection.
● Magnetization & Inspection
Final magnetization and quality inspection before delivery.

Packaging & Transportation
To ensure product reliability throughout handling, storage, and global logistics, Jinconn implements a comprehensive packaging and transportation system:
Packaging Steps
Single-Unit Protection:
Each magnet is individually wrapped or placed in custom trays.
Clean Surface Control:
Anti-dust packaging materials are used when required.
Impact and Vibration Isolation:
Shock-absorbing materials are applied inside inner boxes.
Controlled Stacking:
Limited stacking height to avoid stress concentration.
Final Inspection Before Sealing:
Visual and quantity checks prior to shipment.
▲ Summary
This packaging method ensures magnets maintain their precision and appearance from factory to end use.

Customization & Services
Jinconn provides comprehensive customization options to support diverse application requirements:
Tailored Dimensions & Geometry:
Custom sizes, shapes, tolerances, and coating specifications (layer structure, thickness, and color).
Custom Magnetic Properties:
Adjustable magnetization direction, field strength, and pole configuration based on customer needs.
Laser Marking Services:
High-precision engraving for brand logos, QR codes, batch numbers, and tracking serials.
Application-Specific Testing & Packaging:
Customized packaging solutions and suction-force/holding-force testing for specialized usage scenarios.
FAQ
Q1. What is the difference between intrinsic coercivity (Hcj) and coercivity (Hcb)?
Answer:Hcj represents the magnet's resistance to irreversible demagnetization, while Hcb indicates resistance to partial demagnetization. Hcj is more critical for applications involving high temperature, vibration, or opposing magnetic fields, as it better reflects long-term magnetic stability.
Q2. Why does a higher grade NdFeB magnet sometimes perform worse at elevated temperatures?
Answer:Higher grades offer higher magnetic energy at room temperature but often have lower intrinsic coercivity. Without proper temperature grading (H, SH, UH, etc.), high-grade magnets may suffer irreversible demagnetization when exposed to heat.
Q3. How does magnet thickness influence demagnetization risk?
Answer:Thicker magnets provide better internal magnetic stability and are less susceptible to demagnetization. Thin magnets operating near their temperature limit or in open magnetic circuits face a higher risk of performance loss.
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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