64mm Magnetic head sensor and Neodymium Permanent magnet
As the cash in circulation is numerous in the market, the currency counting machine is always necessary in the bank, market, stores and so on for detecting the currency notes. There are several methods to detect of a counter, and the commonly used is the magnetic detection.
As some parts of the currency notes are in magnetic ink printing which contains ferrite, co and some other magnetic materials like neodymium magnets, so when the currency are put in the counter, these materials will be detected by the magnetic head sensor. There are always single, two, three or four magnetic head sensors in the machine. In the magnetic detection, the magnetic head sensor in the machine must be assembled in the fixed position, so as to ensure the currency and the permanent magnets contact properly.
The magnetic head sensor, with a hard metal case, includes a sensor chip with magnetic-resistance components that to respond magnetic vector, and a permanent magnet to magnetized the magnetic vector so that to be inducted. The common specification of it is 64mm length, 13mm width, and 14mm thickness. If there are special requirements, the specification also can be customized.
The permanent magnet in it is always N35 neodymium magnet without any sharp edges and burrs, and is also 64mm length, and 4mm width, 5mm thickness. The typical corner radius is 0.2mm. Besides, it is a 38M block magnet with zinc coating. Generally, the use life of the magnetic head sensor is more than 500 thousand times.
Tags: permanent magnet, neodymium magnet, magnetic materials, 64mm Magnetic head sensor and a Neodymium Permanent magnet
China Rare Earth Magnet Limited manufactures 64mm magnetic head sensor and a neodymium permanent magnet used in currency counting machines for detecting the currency notes.
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