Product name: Gray multi-pole magnet ring
Material: NdFeB alloy permanent magnet
Manufacturing process: Molded magnet
Orientation: Isotropic magnet
Ingredients: praseodymium5%, neodymium17%, iron65%, boron 1% Binder: epoxy resin 2.5%
Surface treatment: epoxy resin spraying
Color: gray paint
Residual induction Br: 750-800mT
Coercive force Hcb: 400-480KA/m
Intrinsic coercive force Hcj: 480-640KA/m
Max. energy product (BH)max: 88-96kJ/m
Recoil Permeability1.2μH/M
Temperature coefficient: 0.12 (%/℃)
Magnet density: 5.7-6.1g/cm3
Maximum operating temperature: 150℃
Magnetizing direction: outer diameter
Number of poles:/8/10/12/24/48-poles
Dimensions: Φ6.1*Φ1.0*6.4mm
General tolerance: ±0.02mm
Temperature and Humidity: 90℃RH60%500H
Salt spray test: neutral salt spray test 24H
Magnet Purpose: tiny stepper motor rotor; optical autofocus; security camera day and night switching module (the magnet's accuracy, magnetization pole difference and angle control are directly related to the sensitivity of the optical zoom and the level of imaging pixels.
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