Product Overview
This 30mm neodymium disc magnet is designed as a functional magnetic component rather than a general-purpose holding magnet. It is commonly used in mechanical assemblies where a defined magnetic force, fixed diameter, and consistent quality are required. The disc format allows easy integration into housings, brackets, and flat mounting surfaces without complex machining.
Compared with smaller magnets, the 30mm diameter offers a practical balance between magnetic strength and installation space. It is often selected during the early design stage of motors, fixtures, or automation systems where engineers need predictable magnetic behavior rather than maximum pull force.
Material and Construction
The magnet is manufactured from sintered NdFeB (neodymium iron boron). This material is widely used in industrial environments because it delivers high magnetic output relative to size. The magnet is typically axially magnetized through its thickness, which suits most disc-based magnetic circuits.
Standard surface protection is nickel plating to reduce oxidation and handling damage. For environments involving moisture or surface contact, alternative coatings such as epoxy can be specified.
Dimensional and Magnetic Parameters
Shape: Disc
Diameter: 30 mm
Thickness: Defined by application; multiple options available
Material: Sintered NdFeB
Grade Range: N35 to N52 depending on strength and temperature requirement
Magnetization: Axial (standard)
Operating Temperature: Suitable for standard industrial environments; higher-temperature grades available upon request
Dimensional tolerances can be controlled to match press-fit or bonded assemblies. Thickness selection is often determined by available space and required holding force rather than diameter alone.
Application Scenarios
This type of 30mm neodymium magnet is commonly used in:
- Motor assemblies and magnetic rotors
- Magnetic fixtures and workholding aids
- Automation and sensor mounting systems
- Mechanical positioning components
- Custom magnetic tools and equipment
In many cases, the magnet is embedded into steel or aluminum parts as part of a larger assembly rather than used as a standalone item.
Supply and Customization
We support bulk supply for both prototype evaluation and regular production use. Thickness, grade, coating, and magnetization can be adjusted to match your design requirements. Engineering drawings or basic dimensional sketches are sufficient to confirm feasibility.
For production orders, magnets are packed individually or in separated layers to prevent surface damage and uncontrolled attraction during transport. Quality inspection data such as dimensional checks and magnetic strength verification can be provided when required.
FAQ
Q: Is 30mm a fixed standard size?
A: The diameter is fixed, but thickness and grade can be adjusted to achieve the required performance.
Q: Can this magnet be bonded into a housing?
A: Yes. Many customers use adhesive bonding or press-fit installation depending on assembly design.
Q: Is it suitable for outdoor use?
A: With appropriate coating and enclosure design, it can be used outdoors. For direct exposure, coating selection should be discussed.
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