Parameter
| Item | Specification |
| Material | Sintered NdFeB |
| Shape | Round / Disc with Countersunk Hole |
| Coating | Aluminum |
| Grade | Custom |
| Magnetization Direction | Axial / Custom |
| Outer Diameter | Custom |
| Thickness | Custom |
| Hole Type | Through Hole / Countersunk Hole |
| Tolerance | Custom |
| Application | Mounting, Holding, Magnetic Assembly |
| Customization | Available upon Drawing or Sample |
Product Overview
Aluminum Coated NdFeB Countersunk Round Magnets are high-performance magnetic components developed for applications that require both strong holding force and reliable mechanical installation. Manufactured from neodymium iron boron material, these magnets offer a powerful magnetic output in a compact round form. Compared with conventional magnet materials, NdFeB provides a high energy product, making it an ideal choice for assemblies where space is limited but magnetic performance remains critical. The addition of a countersunk hole allows the magnet to be fixed securely to a surface or component using matching flat head screws, creating a more stable installation than adhesive-only solutions.
Countersunk Structure for Secure Mounting
The main advantage of this product is its countersunk hole design. Unlike standard disc magnets, countersunk round magnets are designed for screw mounting, which makes them highly suitable for fixtures, equipment panels, furniture fittings, shop displays, magnetic latches, industrial tooling, and custom assemblies. The countersunk hole allows the screw head to sit flush with the magnet surface, supporting a cleaner installation and reducing interference with surrounding parts. This structure is especially useful in projects where the magnet must remain fixed during repeated operation or under vibration conditions.
Benefits of Aluminum Coating
Improved Corrosion Resistance – Aluminum coating helps protect sintered NdFeB magnets from corrosion and environmental exposure.
More Uniform Surface Coverage – The coating can provide more even coverage on the magnet surface, helping improve overall protection.
Better Surface Durability – It helps reduce surface damage during storage, handling, and use in industrial environments.
Lower Electrochemical Corrosion Risk – The relatively low potential difference between the aluminum coating and the magnet substrate helps reduce electrochemical corrosion risk.
Enhanced Stability in Demanding Conditions – This makes the magnet more suitable for humid or challenging service environments where long-term reliability is required.
Clean Metallic Appearance – Aluminum coating also provides a neat metallic finish that is suitable for many industrial applications.
Balanced Performance and Protection – It is a practical coating option for projects that require both magnetic performance and consistent surface protection.
Key Features
High Magnetic Strength – Delivers strong holding force in a compact round design.
Countersunk Hole Structure – Supports secure screw mounting and easier installation.
Aluminum Coating – Helps improve corrosion resistance and surface protection.
Assembly Reliability – Suitable for stable mounting in industrial applications.
Custom Manufacturing – Available in customized sizes, structures, and specifications.
OEM Friendly – Suitable for drawing-based development and batch production.
Customization Options
We offer flexible customization options for Aluminum Coated NdFeB Countersunk Round Magnets to meet different assembly, fastening, and application requirements. Customizable items include outer diameter, thickness, hole diameter, countersunk angle, magnetic grade, coating type, magnetization direction, tolerance, and packaging method. Production can be arranged according to customer drawings, samples, or specific technical requirements. Support for prototype development and batch production is also available, helping OEM and industrial buyers match the magnet to their existing structures, installation methods, and service environments.
Typical Applications
Aluminum Coated NdFeB Countersunk Round Magnets are commonly used in:
Industrial fixtures
Automation equipment
Shopfitting systems
Magnetic door catches
Holding tools
Display mounting
Sensor-related structures
Equipment panels and housings
Custom magnetic assemblies
OEM and industrial mounting applications
Quality and Manufacturing Focus
Quality consistency is essential for Aluminum Coated NdFeB Countersunk Round Magnets, especially in applications that require secure mounting and precise assembly. From raw material selection to final inspection, every stage should be carefully controlled to ensure stable magnetic performance and accurate dimensions. Because countersunk magnets usually require post-sintering machining, special attention is given to outer diameter tolerance, thickness consistency, hole accuracy, and countersunk angle control. The aluminum coating should also be checked for surface uniformity, adhesion, and overall appearance to support both corrosion resistance and product reliability. For customized orders, production can be carried out according to customer drawings, samples, or technical requirements, with support for sample confirmation before mass production. Combined with batch production capability and engineering communication for application matching, this helps provide dependable solutions for procurement teams, manufacturers, and OEM customers.
