40mm x 15mm Neodymium Disc Magnet – N52 Grade 

Key Features:

• Dimensions: 40mm Diameter × 15mm Thickness
• Precision Tolerance: ±0.05mm 
• Magnet Grade: N52 
• Pull Force: Approx. 107 lbs 
• Coating: Nickel-Copper-Nickel (Ni-Cu-Ni) triple-layer plating 
• Magnetization: Axially magnetized (Poles on the large flat faces)
• Surface Gauss: Approx. 6,266 Gauss

Material Description:

Our 40x15mm N52 discs are engineered for the most demanding commercial and scientific applications. The substantial 15mm thickness creates an incredibly deep and intense magnetic field capable of penetrating through several inches of non-magnetic material. These are the premier choice for magnetic separation of ferrous particles in bulk flow, heavy-duty structural anchoring, and high-performance rotors for wind turbines or industrial-grade robotics.

Handling Advice: EXTREME DANGER: This magnet is powerful enough to cause severe, life-altering injuries. With over 130 lbs of pull force, two magnets will attract with lethal velocity from a distance. Impact can lead to crushed or broken bones and will likely cause the magnets to shatter into sharp, high-speed fragments. Always handle with specialized non-magnetic equipment and heavy protective gloves. Use thick wooden or plastic spacers for storage and never handle alone.

Warnings and Safety Information:

• Severe Crush Hazard: Can cause permanent injury to hands and fingers. For professional use only.
• Fragility Hazard: Extreme impact force will shatter the magnet. Eye protection is mandatory.
• Medical Safety: KEEP AWAY from pacemakers and sensitive medical implants at all times.
• Electronics: Keep well away from hard drives, credit cards, and all sensitive electronic equipment.

Applications:

• Industrial magnetic separation for bulk processing of food, chemicals, or minerals
• Heavy-duty structural mounting for industrial equipment and removable machinery panels
• High-performance magnetic couplers and rotors for renewable energy and heavy robotics
• Scientific research involving high-intensity magnetic field generation
• Lifting and positioning heavy ferrous loads in workshop or factory environments