High-Performance Neodymium Block Magnets for Industrial & OEM Applications
We are your reliable partner for Strong Neodymium Block Magnets. We provide ISO 9001 and RoHS certified manufacturing, massive in-stock inventory (N28 to N55 Grades), and direct-from-factory pricing. We engineer solutions for the most demanding applications in automotive, medical, aerospace, and consumer electronics.
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Neodymium Block Magnet Engineering Data
How to Choose the Right Block Magnet Grade? (Strength vs. Temp)
Grade selection is about finding the right balance between magnetic strength, cost, and heat resistance.
- Neodymium Block Magnet Strength Grades: N55 offers highest force in a small size. N35 provides the best cost-performance for holding applications.
- Neodymium Block Magnet Heat Grades: Standard 'N' grades demagnetize above 80°C. For automotive, motor, or industrial sensors, you MUST use high-temp grades (e.g., M, H, SH, UH). Contact our engineers to validate your thermal requirements.
How to Choose the Right Block Magnet Coating
Iron in rectangular Neodymium magnets rusts easily, so a protective coating is essential. Here is a simple guide to help you choose block magnet plating.
Nickel Plated Block Magnets (Ni-Cu-Ni)
Best for: Dry, indoor use in offices, schools, and homes.
Epoxy Coated Block Magnets
Best for: Outdoor, wet, and marine environments.
Gold Plated Block Magnets (Au)
Best for: Medical implants, life-long devices, and high-end scientific equipment.
Rubber Coated Block Magnets
Best for: Outdoor use, vehicle mounts, and protecting delicate surfaces.
Zinc Plated Block Magnets (Zn)
Best for: Automotive use or dry areas with scratch risk.
Black Nickel Plated Block Magnets (Ni-Cu-Black Ni)
Best for: Hidden, or decorative uses requiring a sleek black finish.
PTFE Coated Block Magnets (Teflon)
Best for: Medical labs, chemical plants, and low-friction applications.
Plastic Coated Block Magnets
Best for: Waterproof applications, preventing scratches on delicate surfaces.
Technical Specifications: Magnetization & Tolerances
Neodymium Block Magnet Tolerances: Our standard tolerances are determined by the dimension:
- Dimensions over 10mm: +/- 0.1mm
- Dimensions 10mm and under: +/- 0.02mm
Neodymium Block Magnet Magnetization Directions: 90% are Axially magnetized(Thickness). Through Width, Length and Diametric magnetization and Multi-pole polarization are available for custom sensors.
Your Quality & Supply Chain Partner for Neodymium Block Magnets.
We are not just a Neodymium Block Magnet supplier; we are a partner. Our quality systems ensure your production line never stops.
RoHS & REACH Compliant
Beyond Manufacturing: Custom Neodymium Block Magnet Engineering
We don’t just build magnets; we design them for your success. As your direct factory partner, we create the perfect NdFeB Block magnet for your application.
- Application-Driven Design: We create drawings based on your specific use case.
- Expert Recommendations: We help you choose the ideal grade, coating, and magnetization. Guaranteed Quality: ISO 9001 certified, RoHS & REACH, 100% inspection.
What Are Neodymium Block Magnets?
Neodymium Block Magnets, also known as rectangular or cuboid magnets, are permanent magnets with a rectangular profile, including specific shapes like cube magnets and bar magnets. As a type of NdFeB magnet, they are sintered from an alloy of Neodymium, Iron, and Boron, making them the most powerful permanent magnets.
- High holding force over a large, flat contact area.
- Uniform magnetic fields for linear actuators and sensors.
- Easy integration into structural assemblies, channels, and fixtures.
Neodymium Block Magnets Applications
Neodymium block magnets excel in applications demanding high strength, structural stability, and deep magnetic field projection. They are the workhorses of industrial automation, used in heavy-duty lifting, separation, and clamping systems, and are fundamental to motion control in linear motors and large-scale generators. Their simple geometry also makes them ideal for creating powerful holding devices, mounting solutions, and complex scientific instruments like Halbach arrays, positioning them as a cornerstone of modern engineering and manufacturing.
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