Product overvirw & Application Scenarios
Upgrade your projects with our 3mm x 18mm neodymium cylinder magnets, engineered for strong, reliable performance in both home and industrial applications. These high coercive force cylinder magnets deliver exceptional holding power, making them ideal for DIY tasks, such as building custom magnetic latches, organizing tools, or securing lightweight objects around the home or workshop.
In professional environments, these high energy density high coercive force cylindrical magnets are widely used in the automotive sector, especially for sensors, fuel injectors, and precision components. They're also a key component in miniature motor manufacturing, contributing to improved efficiency and extended product lifespan.
Whether you're working on a home improvement project or developing complex mechanical systems, these N52-grade cylinder magnets offer the strength, durability, and precision your application demands.
|
Dimensions |
18mm x 3mm |
|
Dimensional Tolerance |
Length ±0.05mm, Width ±0.05mm, Thickness ±0.05mm |
|
Operating Temperature |
≤80°C (high-temp version available) |
|
Pull (kg) |
1.31KG |
|
Magnetisation Direction |
Radially Magnetised |
|
Density |
≥7.5 g/cm³ |
|
Surface Magnetic Field |
3800 ±200 Gauss (measured with TM-801 Gauss meter) |
|
Magnetic Flux |
2.3 mWb (measured with fluxmeter) |
Surface Treatment
- NdFeB magnets are supplied with protective surface coatings to reduce corrosion and environmental degradation.
- Standard coating options include NiCuNi, Epoxy, and Zinc, applied in accordance with established industrial processes.
- Coating thickness is controlled to ensure compliance with dimensional tolerances and functional requirements.
- Alternative coatings are available upon request based on application environment and service conditions
Inspection and Quality Control
Incoming and in-process inspections are conducted throughout manufacturing.
Dimensional verification is performed using calibrated measuring instruments to confirm tolerance conformity.
Magnetic properties are tested to ensure compliance with specified material grades.
Surface condition is inspected for coating continuity, adhesion, and mechanical defects.
Products are released only after passing final inspection in accordance with quality control procedures.
Reliability Validation & Testing
For industrial and high-reliability applications, multi-level inspection and verification are conducted throughout the manufacturing process.
Testing & Validation Items:
Rare earth composition and formulation consistency
Initial magnetic property verification
Key process parameter control
Sampling inspection for magnetic properties and dimensions
Final validation
Magnetic performance testing (Br, Hcj, (BH)max)
Dimensional and geometric tolerance inspection
Coating adhesion testing
Salt spray corrosion test (ASTM / ISO / GB)
Deliverables:
Magnetic performance test report
Dimensional and tolerance inspection report
Surface treatment and salt spray test report
Batch traceability records
Applications & Industry Coverage
Our NdFeB magnets are designed to perform reliably across a wide range of applications where magnetic performance, durability, and consistency are critical. Typical application areas include traction motors and sensors for electric vehicles, industrial automation and servo motor systems, consumer electronics such as speakers and miniature motors, robotics and intelligent equipment, as well as wind power and other renewable energy systems.
Rather than serving industries in isolation, we focus on understanding application-specific operating conditions and performance requirements to deliver optimized magnetic solutions for each use case.
FAQ
Q1. What is magnetic flux leakage and how can it be minimized?
Flux leakage occurs when magnetic fields extend beyond the intended path. Proper magnet geometry, magnetic circuits, and shielding materials help reduce leakage.
Q2. How do you prevent chipping or cracking during assembly?
Controlled handling, chamfered edges, protective spacers, and appropriate assembly fixtures are recommended to reduce mechanical impact risk.
Q3. What standards do NdFeB magnets comply with?
Common standards include ISO, RoHS, REACH, and application-specific automotive or electronics requirements upon request.
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