25x10x3mm Mini Square Block Heavy Duty Neodymium Magnets

25x10x3mm Mini Square Block Heavy Duty Neodymium Magnet Overview

The 25x10x3mm Mini Square Block Heavy Duty Neodymium Magnet is a compact, high-strength permanent magnet made from premium neodymium-iron-boron (NdFeB). Designed as a slim rectangular block, this magnet delivers powerful holding force and consistent performance while fitting into tight, low-profile assemblies.

Why choose this 25x10x3mm neodymium magnet

• High magnetic energy density for stronger attraction than comparable ferrite or ceramic magnets.
• Rectangular block profile provides greater surface contact and improved alignment.
• Thin 3mm profile allows integration into compact electronics and precision fixtures.
• Durable Ni-Cu-Ni coating protects against corrosion and wear for extended use.

Key Features

• Size: 25 x 10 x 3 mm for reliable, compact mounting.
• Material: NdFeB (neodymium-iron-boron) heavy duty grade for maximum pull strength.
• Magnetization: Axially magnetized for consistent performance across the contact surface.
• Coating: Triple-layer nickel (Ni-Cu-Ni) plating for corrosion resistance and a smooth finish.
• Profile: Rectangular block design gives a larger surface area than small cylindrical magnets.

Technical Specifications

• Type: Neodymium magnet (NdFeB)
• Shape: Mini square / rectangular block
• Dimensions: 25 mm × 10 mm × 3 mm
• Magnetization: Axial
• Coating: Ni-Cu-Ni (nickel)
• Grade: Heavy duty / high strength
• Color: Silver
• Typical operating temperature: Up to 80 °C

Applications for 25x10x3mm Neodymium Magnets

These compact neodymium magnets are versatile and well suited for a wide range of tasks where a slim profile and strong hold are required.

• Electronics and PCB mounting
• Robotics and automation components
• DIY, hobby and maker projects
• Crafts, model making and art installations
• Magnetic locks, holders, and fixtures
• Educational demonstrations and physics experiments
• Precision alignment and positioning tasks

Advantages

• Powerful magnetic pull in a compact 25x10x3mm package.
• Larger contact area for improved holding stability compared to similar-sized cylindrical magnets.
• Durable, corrosion-resistant finish for long service life.
• Easy to integrate into tight, low-profile assemblies and enclosures.

Safety and Handling

• Handle with care; strong attraction can cause magnets to snap together and pinch skin.
• Keep away from children, pacemakers, magnetic storage, and sensitive electronics.
• Avoid drilling, grinding, or sudden mechanical impacts that can damage the magnet or reduce performance.
• Do not expose to temperatures above the specified operating range to prevent demagnetization.

Ordering and Compatibility

Choose the 25x10x3mm mini square block neodymium magnet when you need a slim, heavy duty magnet with reliable holding force. Suitable for custom housings, retrofits, and precision fixtures. For bulk orders or custom grades and coatings, contact our sales team for options and lead times.

Note: Images are for illustration purposes only. Actual product size and appearance may vary slightly.