5mm x 10mm (13/64" x 25/64") Diametric Neodymium Cylinder – N52 Grade 

Key Features:

• Dimensions: 5mm diameter × 10mm thickness (Approx. 13/64" × 25/64")
• Pull Force: Approx. 4.91 lbs
• Magnet Grade: N52 
• Magnetization: Diametrically Magnetized (Poles are on the curved sides, not the flat ends)
• Coating: Nickel-Copper-Nickel (Ni-Cu-Ni) triple-layer plating for a durable, metallic finish
• Shape: Cylinder / Rod

Material Description:

Our 5x10mm Diametric cylinders are unique because the magnetic field radiates from the sides of the rod. This allows the magnet to act as a "rolling" magnetic trigger. When placed in a housing and rotated, it can be used by Hall-effect sensors to determine exact angular position or speed. These are the strongest diametric magnets available in this form factor.

Important Note: Diametric magnets behave differently than axial ones. They will prefer to stick together side-by-side rather than end-to-end. Neodymium is brittle; handle with care to avoid side-impact chipping.

Warnings and Safety Information:

• Choking Hazard: Small rod size is dangerous if swallowed. Keep strictly away from children and pets.
• Unusual Magnetic Field: Expect these to align "side-to-side." This can be surprising to those used to standard axial magnets.
• Medical Safety: Keep away from pacemakers and sensitive medical electronics.
• Storage: Store in a non-ferrous container to prevent accidental attraction to nearby tools.

Applications:

• Rotary encoders and angular position sensors
• Magnetic stir bars for laboratory chemical mixing
• Precision DC motor and generator prototyping
• Magnetic "rollers" for small-scale mechanical assemblies
• Unique educational demonstrations of magnetic field lines