25mm x 10mm Diametric Neodymium Disc – N52 Grade

Key Features:

• Dimensions: 25mm diameter × 10mm thickness
• Pull Force: Approx. 51.81 lbs
• Magnet Grade: N52
• Magnetization: Diametrically Magnetized (Poles are on the curved sides, not the flat faces)
• Coating: Nickel-Copper-Nickel (Ni-Cu-Ni) triple-layer plating for maximum protection
• Shape: Large Disc / Thick Cylinder

Material Description:

Our 25x10mm Diametric N52 magnets are designed for engineers and makers working on high-torque or high-speed rotational systems. In this orientation, the magnet acts as a powerful "spinning" field. When used with Hall-effect sensors, it provides incredibly accurate angular data even through thick non-ferrous housings. This is the strongest diametric disc available in this size category.

Safety Warning: This is a very powerful industrial magnet. It can cause severe pinch injuries if handled carelessly. Because it is diametric, it will snap to other magnets "side-to-side," which can be unexpected. Always handle with two hands and keep away from iron objects.

Warnings and Safety Information:

• Severe Pinch Hazard: This magnet has enough pull force to break skin or small bones if fingers get caught between it and another magnet/metal.
• Medical Safety: KEEP AWAY from pacemakers. The field strength is significant at close range.
• Fragile: Neodymium is a brittle ceramic. If allowed to slam together, these large magnets can shatter with explosive force.
• Electronics: Keep a safe distance (at least 12 inches) from hard drives, credit cards, and sensitive monitors.

Applications:

• High-torque brushless DC motors and custom generators
• Precision industrial rotary encoders and position sensing
• Magnetic stirrers for large-volume laboratory mixing
• Heavy-duty magnetic couplings for pump drives
• Advanced physics demonstrations of transverse magnetic fields