Product Description

Neodymium Flat Magnetic Lenses Ø 32 X 7.8 mm, Rare Earth Round Base Magnet, Sintered NdFeB Flat Magnetic Lens, Ø 32mm NdFeB Magnetic Lens, Glue-in Pot Magnet

Neodymium Flat Magnetic Lenses – The standard selection can be broken down into three material types and there is a great variety of systems available. The following data should act as a simple guide:

1) Rare Earth Samarium & Neodymium, pots and assemblies can offer up to eleven times the performance of a Ferrite system in a comparable size. Applications tend to be specialized engineering projects where performance and available space are key factors. Maximum operating temperatures are +60°C for the Neodymium and +150°C – +250°C for the Samarium depending on the design configuration.

2) Sintered Ferrite, this material offers a good performance from an inexpensive magnet, however, they tend to be bulky and are not always suitable where space is an important factor. The steel parts are plated & the Ferrite is inert thus corrosion is limited. Maximum operating temperature is +120 °C.

3) Cast AlNiCo, offers a better holding force than Ferrite systems and is the only pot magnet that can be heated to extreme temperatures. However, the high cost of the Cobalt content in the cast magnet makes the price prohibitive unless the application requires temperatures over +120°C up to a maximum of +500°C.

When considering your magnetic lens selection, please be aware of the following factors: The stated Kg Pull (holding/gripping force) is based on the magnets retaining force against a direct pull when offered to a clean ground mild steel surface with a minimum thickness of 8mm. Painted or un-ground surfaces will reduce this force, assemblies working in shear will support approximately 1/3 of the stated value.