This magnet is a custom magnetic assembly that was ordered by a customer. This magnet is composed of a SmCo26 core, and is covered by a brass sleeve. The brass sleeve protects the relatively fragile SmCo magnet at its core to ensure a long service life in any adverse conditions this magnet may be used in. This is just one of many custom magnets that were made by CMS Magnetics.
Please note that this magnet is only available for purchase by special order and is not stocked. If you are interested in ordering this magnet, please let us know.