Block Magnet With Countersunk For Motor

The Block Magnet with Countersunk Holes is a versatile NdFeB magnetic block engineered for demanding industrial assemblies. Combining high-energy rare-earth magnet material with precise machining and built-in countersunk holes, it offers both strong magnetic pull and flush-mount installation convenience. This product is ideal for OEMs, motor manufacturers, automation equipment builders, and mechanical designers who require reliable permanent magnets that integrate cleanly into housings or fixtures.

• Material: Sintered Nd-Fe-B (rare earth permanent magnet) 
• Standard Grade: N35 (higher grades available on request) 
• Shape: Rectangular block with countersunk mounting hole 
• Dimensions: Custom - standard example 60 × 15 × 5 mm; but length, width, thickness all customizable 
• Tolerance: ±0.05 mm 
• Mounting Hole: Countersunk (e.g. for flat-head screws) - sized per specification (standard #6 / #8 or per customer request) 
• Coating / Finish: Standard Ni-Cu-Ni nickel plating; other coatings (Zinc, epoxy, etc.) available upon request 
• Max. Operating Temperature: Up to 200 °C (depending on grade and coating) 
• Mounting Method: Screw-flush mounting via countersunk hole - ideal for embedded assemblies or fixture integration.

 

• Compact yet Strong: Even in small block form, the NdFeB material delivers strong magnetic flux - ideal for small motor modules, magnetic chucks, sensor housings, or actuator parts.
• Flush-Mount Versatility: Countersunk holes offer convenient screw mounting so that magnets sit flush with surfaces, enabling clean assembly and easy integration into housings, machine frames or metal fixtures.
• Durable and Stable: Nickel plating resists corrosion, while precise dimensional tolerance ensures consistency - crucial for assemblies where alignment and repeatability matter.
• Industrial Use Cases:
• Electric motor rotors, stators, or housing inserts.
• Mechanical fixtures and mounting plates.
• Automated machinery where magnets must be embedded and fixed securely.
• Magnetic sensors and actuators requiring fixed magnetic elements.
• Machine tooling jigs and welded or bolted equipment requiring magnetic components.

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• Bulk Supply & Consistency: We support bulk order procurement, delivering consistent magnetic performance and dimensional accuracy across large batches - ideal for mass production.
• Custom Magnet Solutions: Through our custom NdFeB block service, we accept drawings or sample parts, and can deliver magnets tailored to your design: size, hole type, coating, grade, polarity.
• Ease of Assembly: Pre-machined countersunk holes save your machining time and simplify assembly processes - reduces labor and avoids the need for additional drilling or mounting work.
• High-Temperature & High-Durability Options: With appropriate coating and material grades, these magnets can operate reliably under elevated temperatures and in corrosive or humid environments - suitable for demanding industrial contexts.

The Block Magnet with Countersunk Holes is a versatile NdFeB magnetic block engineered for demanding industrial assemblies. Combining high-energy rare-earth magnet material with precise machining and built-in countersunk holes, it offers both strong magnetic pull and flush-mount installation convenience. This product is ideal for OEMs, motor manufacturers, automation equipment builders, and mechanical designers who require reliable permanent magnets that integrate cleanly into housings or fixtures.

Every batch undergoes:

• Magnetic flux and pull-force testing,
• Dimensional tolerance inspection,
• Coating adhesion and corrosion resistance checks,
• Pre-shipment audit and batch traceability documentation.

Certification files (e.g., ISO, RoHS) and test reports can be provided - giving procurement and QA teams the data they need for approval and compliance.

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