Micro neodymium magnets

Micro Neodymium Magnets – also known as tiny or precise neodymium magnets – are magnets that typically have a size below 2 mm (5/64 inch) or even smaller. To simplify technical communication, we categorize the most miniature magnets into two tiers: • Small Magnets (Little Magnets): 1.00 – 2.00 mm (3/64 – 5/64 inch) • Micro Magnets (Tiny Magnets): 0.20 – 0.99 mm (200μm-990μm, 1/64 – 1/32 inch)

The manufacturing technologies’ overall precision is advancing steadily, making micro neodymium magnets more and more popular in various industries, including consumer electronics, automobiles, and medical devices. Micro neodymium magnets can help scale the overall product dimensions down, offering functions that were impossible before. One example is Minimally Invasive Surgery (MIS). The appropriate magnet diameter for coronary arteries, which are only 3-4 mm in diameter, is 1.35 mm or smaller.

Features of Micro Magnets

Custom micro magnets are tough to make, and it’s difficult to find supply information. N52mag takes micro magnets as one of our most important focuses. As a custom neodymium magnet supplier, we can produce micro magnets with different materials like Neodymium Iron Boron, Samarium Cobalt, Ferrite, and Alnico.

Measurement Unit

In scientific research, scholars prefer using μm to measure magnets. N52mag can produce micro magnets with the dimensions below as a custom magnet supplier. • Minimum block: 0.20.20.2 mm • Minimum disc: 0.20.2 mm • Minimum tube: 0.380.14*2 mm • Tolerances: between +/- 0.005mm and +/- 0.020 mm • Minimum hole diameter: 0.10 mm

Grades

Neodymium magnets are graded based on the strength of their magnetic field. A number indicates the grade of a neodymium magnet. Neodymium magnets have different grades, ranging from N35 to N55, and they also have high-temperature grades for special applications, like H, M, SH, EH, and AH. Micro neodymium magnets of the top grades – N52, N54, and N55 – are more logical choices than lower grades because they are more difficult to process and more likely to get damaged during applications.

Coatings

To improve the durability of neodymium magnets, we apply a layer or even multiple layers of coatings on their surfaces. N52mag offers custom neodymium magnets with several different types of coatings like nickel, zinc, epoxy, parylene, etc. Customers have to consider the tolerance of different coatings to avoid the issue that the coating ruins the magnets’ precision.

Uses

Micro magnets are used in a wide range of applications across industries like electronics, medical equipment, manufacturing, and research. Their small size and strong magnetic properties make them a versatile and valuable tool.

Where to Buy

N52mag has an advantage on the tiny magnets. If you would like to purchase some micro magnets, don’t hesitate to contact us. We offer lots of micro magnets to research institutes, universities, and companies.