High-Performance Neodymium Arc Magnets for Industrial & OEM Applications
We are your reliable partner for Strong Neodymium Arc Magnets. We provide ISO 9001 and RoHS certified manufacturing, massive in-stock inventory, and direct-from-factory pricing. We engineer solutions for the most demanding applications in motors, generators, robotics, and aerospace.
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Neodymium Arc Magnet Engineering Data
How to Choose the Right Arc Magnet Grade? (Strength vs. Temp)
Arc Magnet grade selection is about finding the right balance between magnetic strength, cost, and heat resistance.
- Neodymium Arc Magnet Strength Grades: For motor applications, the numerical grade is selected based on the motor's power requirements. Higher numbers like 55 provide maximum magnetic force, while grades like 35 offer a strong balance of performance and cost.
- Neodymium Arc Magnet Heat Grades: Due to the high operating temperatures of motors, standard 'N' grade magnets are typical insufficient. For these applications, it is essential to use high-temperature grades, with H and SH being the most common selections. Contact our engineers to validate your specific thermal requirements.
How to Choose the Right Arc Magnet Coating
Iron in Neodymium arc magnets rusts easily, so a protective coating is essential. Here is a simple guide to help you choose arc magnet plating .
Nickel Plated Arc Magnets (Ni-Cu-Ni)
Best for: Dry, indoor use in offices, schools, and homes.
Epoxy Coated Arc Magnets
Best for: Outdoor, wet, and marine environments.
Gold Plated Arc Magnets (Au)
Best for: Medical implants, life-long devices, and high-end scientific equipment.
Rubber Coated Arc Magnets
Best for: Outdoor use, vehicle mounts, and protecting delicate surfaces.
Zinc Plated Arc Magnets (Zn)
Best for: Automotive use or dry areas with scratch risk.
Black Nickel Plated Arc Magnets (Ni-Cu-Black Ni)
Best for: Hidden, or decorative uses requiring a sleek black finish.
PTFE Coated Arc Magnets (Teflon)
Best for: Medical labs, chemical plants, and low-friction applications.
Plastic Coated Arc Magnets
Best for: Waterproof applications, preventing scratches on delicate surfaces.
Technical Specifications: Magnetization & Tolerances
Neodymium Arc Magnet Tolerances:Our standard tolerances are determined by the dimension:
- Dimensions over 10mm: +/- 0.1mm
- Dimensions 10mm and under: +/- 0.02mm
Neodymium Arc Magnet Magnetization Directions: Arc magnets are custom-made for their field. Common directions include Radially (poles on the inner/outer curves), Axially (poles on the flat faces), or Circumferentially (poles on the ‘ends’).
Your Quality & Supply Chain Partner for Neodymium Arc Magnets.
We are not just a Neodymium Arc Magnet supplier; we are a partner. Our quality systems ensure your production line never stops.
RoHS & REACH Compliant
Beyond Manufacturing: Custom Neodymium Arc Magnet Engineering
We don’t just build magnets; we design them for your success. As your direct factory partner, we create the perfect NdFeB Arc magnet for your application.
- Application-Driven Design: We create drawings based on your specific use case, managing complex geometries and magnetization patterns.
- Expert Recommendations: We help you choose the ideal grade, coating, and magnetization.
- Guaranteed Quality: ISO 9001 certified, RoHS & REACH, 100% inspection.
What Are Neodymium Arc Magnets?
Neodymium Arc Magnets, also known as segment magnets, are permanent magnets with a curved profile, essentially a section of a ring. They are defined by complex geometries like Outer Radius, Inner Radius, Angle, and Length. As a type of NdFeB magnet, they are sintered from an alloy of Neodymium, Iron, and Boron, making them the most powerful permanent magnets.
- Designed to fit perfectly within motor stators or on rotors.
- Assembled in sets to create a full 360° magnetic ring.
- Enables high-efficiency designs for PM motors and generators.
- Optimized for high-torque and compact rotational applications.
Neodymium Arc Magnets Applications
Neodymium arc magnets are almost exclusively used in high-performance rotational machinery. They are the fundamental component in permanent magnet (PM) motors, servo motors, and generators, where multiple segments are assembled onto a rotor or within a stator to create a powerful, precise magnetic field. Their design is critical for robotics, aerospace actuators, wind turbines, elevator, and magnetic couplings, enabling high torque and efficiency in compact designs.
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