Product Overview
A high-performance Nd-Fe-B permanent ring designed for demanding industrial applications is the N52 Round Ring Neodymium Magnet. This ring magnet is perfect for high-efficiency motors, generators, magnetic couplings, and precision assemblies because of its N52 grade, which provides significant magnetic flux density in a compact form. In order to satisfy OEM and large-volume project requirements, we provide both conventional ring sizes and custom solutions, such as unique inner/outer diameters, thicknesses, magnetization directions, and coatings, as a committed industrial NdFeB ring magnet provider.
Specifications & Material Properties
- Material: Sintered Nd-Fe-B (rare-earth neodymium-iron-boron)
- Grade: N52 - among the highest commercially available grades, with excellent residual magnetism and field strength.
- Shape: Round ring (ring magnet) - inner hole for shaft or mount, outer diameter and thickness customizable per drawing or specification.
- Magnetization Direction: Typically axial or diametrical (depending on design requirement), suitable for motors, generators, couplings or magnetic assemblies.
- Coating / Surface Finish: Standard Ni-Cu-Ni (nickel-copper-nickel) plating for corrosion resistance. Alternative coatings (zinc, epoxy, etc.) available depending on environment or application.
- Typical Mechanical Properties: High energy density, strong pull force relative to size - N52 magnets are significantly stronger than lower-grade magnets of the same shape, enabling smaller or lighter designs while maintaining magnetic performance.
- Operating Considerations: As with all NdFeB magnets, correct coating and handling are needed to prevent corrosion and chipping.
(Custom inner/outer diameters, thickness, magnetization scheme and plating can be provided under our custom ring magnet service.)
Features & Industrial Applications
- High Performance in Compact Geometry: The N52 ring magnet offers superior magnetic strength per volume, allowing compact motor or generator designs without sacrificing torque or flux density.
- Versatile Mounting: The ring's central bore makes it easy to mount directly onto shafts or housings - ideal for rotor/stator assemblies, magnetic couplings, or rotating magnetic modules.
- Design Flexibility: Thanks to customizable dimensions and magnetization directions, the ring magnet is adaptable to different motor/generator designs, sensor housings, or magnetic devices.
- Common Industrial Use Cases:
- Permanent-magnet motors and generators (rotor or stator rings)
Magnetic couplings and clutches
- Encoders, magnetic sensors, and rotary modules
- Magnetic separators or magnetic assemblies in automation equipment
- Industrial equipment where compact permanent magnets with strong flux are required
Advantages for OEMs & Bulk Buyers
- Reliable Bulk Supply: As an experienced ring-magnet manufacturer, we support bulk orders with consistent magnet quality, tight tolerances and traceable batch control.
- Custom Magnet Services: We welcome custom orders - you send your CAD drawing or specifications (inner/outer diameter, thickness, coating, magnetization), we produce and deliver accordingly.
- Cost-Effective Integration: Ring magnets simplify mechanical assembly (shaft mount, direct fit), reduce material waste compared to machined parts, and lower overall manufacturing cost in high-volume production.
- Quality & Traceability: Each batch undergoes magnetic and dimensional testing. We can provide inspection reports, coating certification and batch traceability - which helps your procurement or QC process.
Packaging & Delivery
Rings are individually wrapped with non-magnetic separators to prevent mutual attraction during transit. For large orders, we offer magnet-safe crates or pallets with protective padding and clear batch labeling. Custom packaging (foam trays, labeled cartons) is also available to support OEM assembly line use and inventory management.
FAQ
Q1: Can You Produce Ring Magnets With Custom Inner And Outer Diameters?
Yes - through our Custom Ring Magnet service, we accept drawings and manufacture rings to your exact dimensions, thickness, magnetization direction and coating specification.
Q2: What Is The Typical Lead Time For Bulk Orders?
Standard ring magnets: usually 10–15 business days depending on quantity. Custom orders depend on complexity - we'll confirm lead time once specs are finalized.
Q3: How Do You Ensure Corrosion Resistance?
All rings are coated with Ni-Cu-Ni plating by default. For harsher environments we offer alternative coatings such as zinc or epoxy for improved corrosion and wear protection.
Q4: Can You Provide Magnetic Property And QC Test Reports?
Absolutely. Every batch is tested for residual magnetism, coercivity, dimensional tolerance and coating integrity. We can supply full reports for procurement and quality assurance records.
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