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

Key Features:

• Dimensions: 25mm Diameter × 5mm Thickness
• Precision Tolerance: ±0.05mm 
• Magnet Grade: N52 
• Pull Force: Approx. 28.1 lbs
• Coating: Nickel-Copper-Nickel (Ni-Cu-Ni) triple-layer plating 
• Magnetization: Axially magnetized (Poles on the flat circular faces)
• Surface Gauss: Approx. 4,561 Gauss

Material Description:

Our 25x5mm N52 discs are engineered for applications where a massive, deep-reaching magnetic field is mandatory. The 5mm thickness creates an immense magnetic volume that can penetrate through thick non-magnetic barriers like heavy structural timber, industrial plastics, or composite housings. These are the premier choice for heavy-duty hidden latches, industrial magnetic separators, and securing heavy equipment in high-vibration environments where smaller magnets fail.

Handling Advice: DANGER: These magnets possess extreme snap velocity. With nearly 25 lbs of pull force, two magnets will jump together from several inches away with enough speed to shatter the brittle core or cause serious injury to fingers (crushing or blood blisters). Always handle one at a time and use non-magnetic spacers. Never let them snap together or onto steel surfaces without controlled mechanical assistance.

Warnings and Safety Information:

• Crush Hazard: High risk of serious skin and finger injury. Handle with industrial-strength focus.
• Choking Hazard: Keep strictly away from children and pets.
• Medical Safety: KEEP AWAY from pacemakers and sensitive medical implants at all times.
• Electronics: Keep well away from hard drives, credit cards, and sensitive electronic testing equipment.

Applications:

• Heavy-duty magnetic stirrers for high-viscosity laboratory and industrial chemistry
• Concealed structural latches for heavy secret doors, thick panels, and security safes
• Industrial-strength tool organization and heavy equipment mounting in workshops
• High-torque magnetic couplers and rotors for professional robotics or wind turbines
• Magnetic separation systems for removing ferrous contaminants from bulk materials