5mm x 25mm (13/64" x 63/64") Diametric Neodymium Cylinder Magnet – N52 Grade 

Key Features:

• Dimensions: 5mm diameter × 25mm length (Approx. 13/64" × 63/64")
• Pull Force: Approx. 8.55 lbs
• Magnet Grade: N52 
• Magnetization: Diametrically Magnetized (Poles are on the curved sides)
• Coating: Nickel-Copper-Nickel (Ni-Cu-Ni) triple-layer plating
• Shape: Long Cylinder / Rod

Material Description:

Our 5x25mm diametric cylinders are precision-engineered for rotational applications. Because the magnetic field runs across the diameter, these rods act as an "axle" that can trigger sensors or interact with other magnets along their entire 25mm length. They are the strongest magnets available for this slim, elongated footprint.

Tech Tip: Diametric rods behave very differently than axial ones. If placed on a flat surface near another magnet, they will roll to align their poles. This makes them ideal for custom motors, magnetic couplings, and high-sensitivity reed switches.

Warnings and Safety Information:

• Choking Hazard: Small diameter is dangerous for children and pets. Keep strictly in a secure container.
• Handling: Neodymium is brittle. Due to the length of this rod, it is susceptible to "shearing" or breaking if snapped together sideways. Handle with a firm, steady grip.
• Medical Safety: Maintain a safe distance from pacemakers and sensitive medical implants.
• Electronics: Avoid direct contact with magnetic storage media and mechanical watches.

Applications:

• Rotors for custom micro-motors and wind turbine prototypes
• Magnetic stir bars for laboratory or industrial mixing
• Long-range non-contact position sensors and rotary encoders
• Self-aligning magnetic joints for advanced robotics
• Scientific demonstrations of side-polarized magnetic fields