25mm x 12mm x 3mm Neodymium Block Magnet – N52 Grade

Key Features:

• Dimensions: 25mm Length × 12mm Width × 3mm Thickness
• Precision Tolerance: ±0.05mm 
• Magnet Grade: N52
• Pull Force: Approx. 11.6 lbs 
• Coating: Nickel-Copper-Nickel (Ni-Cu-Ni) triple-layer plating 
• Magnetization: Axially magnetized through the 3mm thickness (Poles on the large 25x12mm faces)
• Shape: Rectangular Power Bar

Material Description:

Our 25x12x3mm N52 blocks are designed for high-load applications where a standard disc or thin strip simply won't suffice. The 25mm length provides a massive surface area for adhesive bonding, while the 3mm thickness ensures the magnetic flux penetrates deep into ferrous surfaces. This bar-style geometry is ideal for ensuring items stay aligned and won't rotate under stress.

Handling Advice: DANGER: These magnets possess serious power. With a 15 lb pull force, they can cause painful skin pinches or blood blisters if allowed to snap onto fingers. They will jump toward each other from several inches away with enough force to shatter. Always handle with a firm grip and separate by sliding horizontally.

Warnings and Safety Information:

• Pinch Hazard: Strong enough to cause serious pinching. Wear gloves if handling multiple units.
• Choking Hazard: Keep strictly away from children and pets.
• Medical Safety: KEEP AWAY from pacemakers and sensitive medical implants at all times.
• Brittleness: High-impact collisions will cause shattering. Do not allow them to snap together.

Applications:

• Heavy-duty concealed latches for secret doors, panels, and Murphy beds
• Industrial-strength jigs, fixtures, and non-slip workbench clamps
• Mounting heavy tools, knives, or equipment to steel structures
• Magnetic separation and metal debris collection in workshops
• Advanced robotics and custom high-torque magnetic motor prototypes