12mm x 25mm (15/32" x 63/64") Diametric Neodymium Cylinder Magnet – N52 Grade 

Key Features:

• Dimensions: 12mm diameter × 25mm length (Approx. 15/32" × 63/64")
• Pull Force: Approx. 24.09 lbs
• Magnet Grade: N52
• Magnetization: Diametrically Magnetized (Poles on the curved sides)
• Coating: Nickel-Copper-Nickel (Ni-Cu-Ni) triple-layer plating
• Shape: Large Cylinder / Rod

Material Description:

Our 12x25mm diametric cylinders are heavy-duty components for industrial engineering. Unlike standard axial magnets, these create a rotating magnetic field when spun on their long axis. The N52 grade provides exceptional flux density, making these ideal for large-scale rotary encoders, magnetic stirrers for high-viscosity liquids, and custom power generation rotors.

Handling Warning: This is a very powerful magnet. The pull force is strong enough to cause severe pinches or crush injuries to fingers if two of these snap together. Always handle one at a time with a firm grip and keep them far apart on your workbench.

Warnings and Safety Information:

• Severe Pinch Hazard: Can cause skin bruising or bone fractures if allowed to snap onto fingers.
• Fragile Material: Despite its size, Neodymium is brittle. Impact will cause it to shatter into sharp shards.
• Medical Safety: MUST be kept away from pacemakers and all medical implants.
• Electronics: Keep at least 12 inches away from hard drives, credit cards, and sensitive electronics.

Applications:

• Large-scale industrial magnetic stirrers for chemical processing
• High-torque magnetic couplings and non-contact drive systems
• Rotors for high-output DIY wind turbines and brushless motors
• Precision angular position sensing in heavy machinery
• Advanced physics experiments and magnetic levitation projects