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Magnet Rods Ø 4 Mm, Height 25 mm
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Magnet Rods Ø 4 Mm, Height 25 mm

Magnet Rods Ø 4 Mm, Height 25 mm

This small but high-performance Neodymium (N42) cylindrical rod magnet generates incredible magnetism from a small pole area.
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Product Introduction

Product Overview

This 4 mm diameter, 25 mm height neodymium rod magnet offers exceptional magnetic force in a compact size. Using N42 grade NdFeB material and a Ni-Cu-Ni coating, we deliver a durable magnet with strong performance. It's ideal where tight spaces demand reliable magnetic pull - like sensors, assemblies, tools, or small mechanisms.

Each rod supports a weight up to 670 g when placed flush against mild steel - impressive given its small footprint. Thanks to its resistance to demagnetization, it also works well for damping, magnetic coupling, or small actuator designs.

 

Specifications

  • Material: NdFeB (Neodymium-Iron-Boron)
  • Grade: N42
  • Dimension: Ø 4 × 25 mm
  • Tolerance: ±0.1 mm
  • Magnetization: Axial (parallel to the rod's height)
  • Coating: Ni-Cu-Ni (nickel, copper, nickel)
  • Pull Force: ~670 g (in flush contact with mild steel)
  • Certifications: ISO9001, TS16949, RoHS, SGS

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Why B2B Buyers Choose This Rod Magnet

  • Compact but powerful - fits in tight assemblies while delivering useful pull.
  • Reliable & stable - holds magnetism well over time, reducing performance drift.
  • Customizable options - we can produce other lengths, grades, coatings on request.
  • Batch consistency - we maintain strict QC across production runs.
  • Bulk supply capability - we handle both prototype orders and large volume runs.

 

Typical Applications

  • Miniature actuators and motors
  • Sensor assemblies and probes
  • Magnetic couplings or dampers
  • Tool holders, fixtures, and jigs
  • Precision mechanisms in electronics, robotics, medical devices
 
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Ordering & Customization

To place an order or request a quote, you can tell us:

  • Quantity needed
  • Desired length (if not 25 mm)
  • Magnetization direction or special magnet layouts
  • Coating or surface finish preferences
  • Any testing or cert needs

We're happy to provide samples for your evaluation before full purchase.

 

Contact HiMagnet

For 4 mm × 25 mm neodymium rod magnets or other custom rod magnet requests, contact us:

📧 info@himagnet.com
📞 +86 0592-5066207

We'll work with you on design, manufacturing, and stable supply.

 

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