Neodymium Rod Magnets

Neodymium Rod & Cylinder Magnet Features & Characteristics

Neodymium (also known as "Neo," "NdFeB," or "NIB") magnets are made from an alloy of neodymium, iron, and boron. most powerful magnets commercially available today, with magnetic properties far exceeding other permanent magnet materials.

Approximate Pull Information for Rare-Earth Neodymium Rod & Cylinder Magnets

*Note: The approximate pull info listed is for reference only. These values are calculated assuming the magnet will be attached to a flat, ground 1/2" thick mild steel plate. Coatings, rust, rough surfaces, and certain environmental conditions can significantly reduce the pull force. Please be sure to test the actual pull in it's exact context. For critical applications, it is suggested that the pull be de-rated by a factor of 2 or more, depending on the severity of a potential failure.

Manufacturing Methods & Coating Options for Neodymium Rod Magnets

Our neodymium rod and cylinder magnets are sintered for optimal magnetic strength and axially magnetized (the magnetism direction is along the axis of the magnet from the north to the south poles). Common coating options include uncoated, nickel, (Ni-Cu-Ni) and gold (Ni-Cu-Ni-Au) plated coatings.

Standard Dimensional Tolerances for NdFeB Rod Magnets

Standard diameter tolerances for Rare Earth Magnets (SmCo & NdFeB) based on the following dimensions:

• +/- 0.004" on dimensions ranging from 0.040" to 1.000".
• +/- 0.008" on dimensions ranging from 1.001" to 2.000".
• +/- 0.012" on dimensions ranging from 2.001" to 3.000".

*Tolerance on length is +/-0.004” regardless of size.

Maximum Operating Temperatures for Neodymium Magnet Grades

Here are the maximum operating temperatures and curie temperatures for standard and specialty neodymium magnet grades:

*Note: The maximum operating temperature for a magnet is dependent on the magnetic circuit that it is operating in. The values above are a guide assuming that the magnet is operating at a permeance coefficient of 1. The higher the permeance coefficient, the higher the temperature the magnet can operate in. The values noted indicate the temperatures at which the magnetic characteristics begin to decline more rapidly. The Curie temperature (at which the magnets become demagnetized and cannot be remagnetized) for standard neodymium magnets is 310°C or 590°F.

Neodymium Rod & Cylinder Magnet Applications

Neodymium rod and cylinder magnets are useful for multiple applications, from crafting and metalworking applications to exhibition displays, audio equipment, sensors, motors, generators, medical instruments, magnetically coupled pumps, hard disk drives, OEM equipment, and much more.

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Custom Neodymium Rod Magnets for Specialized Applications

We can custom-fabricate neodymium rod magnets to your exact specifications. Send us a special request or contact us, and we'll help you determine the most cost-effective solution for your project. Our sister company, Integrated Magnetics, has over 60 years of experience manufacturing complex magnetic assemblies for more technical applications. As a trusted supplier of rare earth magnets for industrial and technical applications, we deliver quick turnaround times on standard and custom orders.

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