Product Overview
9.5mm x 6.5mm Neodymium cylindrical Magnets
High performance small cylindrical magnets offer a powerful and compact magnetic solution for home projects, including creating magnetic fixtures, organising tools, or securing lightweight items. In the professional world, they are crucial in manufacturing, engineering, and product design, where their magnetic strength and precision are essential for holding and positioning small components. Furthermore, they are used in the energy sector, particularly in the development of renewable energy devices, where their magnetic force contributes to efficient operation. These magnets are utilised across various industries, making them a reliable choice for both consumers and businesses.
Technical Parameters
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Product Name |
small cylindrical magnets |
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Magnetic Grade |
N42 (Br ≥ 13.5 kGs, Hcj ≥ 12 kOe) |
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Dimensions |
D - 9.5 x 6.5mm (customizable) |
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Dimensional Tolerance |
Length ±0.05mm, Width ±0.05mm, Thickness ±0.05mm |
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Operating Temperature |
≤80°C (high-temp version available) |
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Density |
≥7.5 g/cm³ |
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Surface Magnetic Field |
2450 ±200 Gauss (measured with TM-801 Gauss meter) |
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Magnetic Flux |
2.3 mWb (measured with fluxmeter) |
Manufacturing Process
Process Selection:
Sintered NdFeB for high-performance requirements
Bonded NdFeB for complex shapes
Performance Control:
Oriented pressing for optimized magnetic output
Density control for consistency
Application-based magnetization design
Magnetization options:
Axial / Radial
Single-pole / Multi-pole
Shape & Machining Capability
Standard and custom geometries supported
Arc magnets for motor applications
Tolerance defined by drawing or application needs
Thin, small, and complex magnets supported
CNC machining, wire EDM, and grinding available
Customization & Engineering Support
With established manufacturing experience and engineering support, we respond efficiently to customized requirements.
Customization & Delivery:
Clear customization process covering magnetic properties, dimensions, shapes, and surface treatments
Flexible MOQ based on project stage and product type
Short sampling lead time for rapid validation
Stable mass production lead time for both low and high volumes
Engineering support for material selection, structural optimization, and application matching
Safe Handling & Packaging Procedure
Safety, Packaging & Logistics Control
Standardized handling, packaging, and transportation controls are implemented for high-strength magnetic products.
Safety & Demagnetization Risk:
- Strong magnetic attraction may cause injury or damage
- Brittle material structure may fracture under impact
- Prolonged exposure to high temperature, reverse magnetic fields, or improper magnetization orientation may result in demagnetization
- Magnetic field distribution and operating temperature should be considered during design and assembly
Packaging & Logistics Control:
- Layered, oriented, and isolated packaging methods
- Shock-proof and moisture-resistant inner packaging
- Export and air-shipment compliant outer packaging
- Magnetic shielding and air-transport verification available upon request
FAQ
Q1. How much irreversible loss should be expected at elevated temperatures?
Irreversible loss depends on grade and exposure time. For standard grades, noticeable loss may begin above 100–120 °C, while high-coercivity grades can maintain stability up to their rated temperature with less than 3–5% irreversible loss if properly designed.
Q2. How does thermal cycling affect NdFeB magnets compared to constant temperature exposure?
Thermal cycling is generally more damaging. Repeated expansion and contraction can accelerate microstructural stress, coating degradation, and partial demagnetization, especially in low-Hcj grades.
Q3. What safety margin is recommended between operating temperature and maximum working temperature?
A minimum margin of 20 °C is common in industrial designs. For automotive and mission-critical systems, 30–40 °C margins are often used.
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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