Product Overview
These small cube magnets are highly versatile and perfect for both DIY tasks and industrial uses. Whether organizing tools, fastening panels, or creating custom assemblies, their strong magnetic grip ensures stable, reliable performance. They're frequently used in engineering, aerospace, and construction for precise alignment and firm-holding power. Ideal for both casual and professional users, these custom commercials use magnetic magnetic force enhanced heavy-duty durable heat resistant premium rare earth nickel coated square shaped neodymium magnets offer a flexible solution across a wide range of applications.
Material Neodymium (NdFeB)
|
Product Name |
small cube magnets |
|
Magnetic Grade |
N42 (Br ≥ 13.5 kGs, Hcj ≥ 12 kOe) |
|
Dimensions |
L8mm x 5mm x 3mm (customizable) |
|
Dimensional Tolerance |
Length ±0.05mm, Width ±0.05mm, Thickness ±0.05mm |
|
Operating Temperature |
≤80°C (high-temp version available) |
|
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) |
2.1 Neodymium Magnet Knowledge
Rare-Earth NdFeB Permanent Magnet – H Grade
Key Magnetic Performance Characteristics
Remanent Flux Density (Br): Typically in the range of 1.1–1.3 T, delivering strong magnetic force and high flux output even in compact or space-constrained designs.
Intrinsic Coercivity (Hcj): ≥ 17 kOe, providing strong resistance to demagnetization and maintaining magnetic stability when exposed to external magnetic fields or moderate thermal stress.
Maximum Energy Product (BHmax): Approximately 280–360 kJ/m³, indicating high magnetic energy density and enabling enhanced performance per unit volume.
Maximum Working Temperature: Up to 120 °C, offering improved thermal stability over standard N and M grades and supporting reliable long-term operation in medium-temperature applications.
Reliability Focused on Application Results
All testing activities are designed to ensure stable and repeatable magnetic performance in real applications.
How reliability is ensured:
- Eliminating composition and performance deviation at material level
- Controlling magnetic and dimensional variation during production
- Verifying durability under corrosion and assembly conditions prior to shipment
Key Verification Items:
- Magnetic performance consistency
- Dimensional accuracy confirmation
- Coating durability verification
- Salt spray corrosion testing
Customer Support:
Test results available in documented reports
Handling and Usage Precautions
- Avoid impact, dropping, or collision, as NdFeB magnets are hard but brittle
- Keep magnets away from electronic devices, magnetic cards, and precision instruments
- Do not expose magnets to environments exceeding their maximum operating temperature
- Wear protective gloves when handling large or strong magnets to prevent injury
- Store in a dry, clean environment to reduce the risk of corrosion
FAQ
Q1. How do you assess coating adhesion and reliability?
Coating adhesion is tested using cross-cut, peel, or tape tests. Coating thickness and uniformity are also inspected to ensure reliable surface protection throughout the magnet's lifetime.
Q2. How is coating performance compared across different surface treatments?
Different coatings (such as Ni-Cu-Ni, epoxy, zinc, or Parylene) are subjected to identical corrosion and thermal tests. Performance is compared based on corrosion resistance time, adhesion integrity, and post-test appearance.
Q3. How is mechanical strength evaluated for brittle NdFeB magnets?
Mechanical reliability is assessed through flexural strength tests, compressive strength tests, and impact resistance evaluations to minimize the risk of cracking or chipping during handling and assembly.
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