12mm x 3mm (15/32" x 1/8") Neodymium Disc Magnet – N52 Grade | Industrial Power Disc

Key Features:

• Dimensions: 12mm Diameter × 3mm Thickness
• Precision Tolerance: ±0.05mm 
• Magnet Grade: N52 
• Pull Force: Approx. 6.6 lbs 
• Coating: Nickel-Copper-Nickel (Ni-Cu-Ni) triple-layer plating 
• Magnetization: Axially magnetized (Poles on the flat circular faces)
• Surface Gauss: Approx. 3,248 Gauss

Material Description:

Our 12x3mm N52 discs are designed for professional engineering and high-load applications. The 3mm depth allows the magnetic field to reach through thicker non-magnetic barriers like wood veneers, heavy plastic housings, or leather. These are widely used for "invisible" heavy-duty latches in custom cabinetry, magnetic couplers in robotics, and securing equipment in industrial environments where a reliable, high-strength hold is non-negotiable.

Handling Advice: DANGER: These magnets possess significant snap velocity. With 4.5 lbs of pull force, two magnets can snap together with enough speed to shatter the brittle neodymium core or cause painful skin pinches. Always handle one at a time and use a sliding motion to separate them from a stack. Avoid high-impact collisions.

Warnings and Safety Information:

• Pinch Hazard: Strong enough to cause blood blisters or skin pinches. Handle with a firm, steady grip.
• Choking Hazard: Keep strictly away from children and pets.
• Medical Safety: KEEP AWAY from pacemakers and sensitive medical implants at all times.
• Electronics: Keep away from hard drives, credit cards, and sensitive testing equipment.

Applications:

• Heavy-duty concealed latches for secret doors, panels, and high-end cabinetry
• Secure mounting for heavy tools, workshop organization, and equipment
• High-torque magnetic couplers for robotics and mechanical prototypes
• Industrial-strength 3D-printed enclosures and removable compartments
• High-performance proximity sensors requiring a robust trigger field