Button Permanent Magnet N50 for Moving Magnet Voice Coil Actuators

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Button Permanent Magnet N50 for Moving Magnet Voice Coil Actuators   Technical Specifications:
Item:     MP-NDN50-65
Grade:   N50
Material: Neodymium (NdFeB)
Plating:    Zinc / Nickel
Shape:    Round, Disc, Disk, Circular, Circle
Dimension: Customer Design Drawing
Tolerance: ±0.05 mm
Magnetisation Direction: Axial / Radial
Residual Magnetic Flux Density (Br): 1280-1320 mT (12.8-13.2 kGs)
Energy Density (BH)max: 318-342 KJ/m³ (40-43 MGOe)
Coercivity Force (Hcb): ≥ 915 kA/m ( ≥ 11.5 kOe)
Intrinsic Coercivity Force (Hcj): ≥ 955 kA/m ( ≥ 12 kOe)
Maximum Operation Temperature: 80 °C
Delivery Time: 14-35 days

A vibration motor is a type of electric motor that is specifically designed to generate vibrations. It consists of a rotor, an eccentric weight, and a set of magnets. The magnets play a crucial role in the operation of the vibration motor as they are responsible for creating the magnetic field that interacts with the electric current to produce the desired vibrations.  N45 NdFeB Micro Button Magnet fits Vibrating Mini Motor

The magnets used in vibration motors are typically permanent magnets, which means they retain their magnetism even when not in the presence of an external magnetic field. Permanent magnets are commonly made from materials such as neodymium iron boron (NdFeB) or samarium cobalt (SmCo). These materials have high magnetic strength and can generate strong magnetic fields.  N42 Sintered NdFeB Pancake Vibration Motor Magnet Button

The magnets in a vibration motor are arranged in a specific configuration to create a rotating magnetic field. This rotating magnetic field interacts with the electric current flowing through the motor’s coils, causing the rotor to rotate. The eccentric weight attached to the rotor creates an imbalance, resulting in vibrations.

The magnets are usually placed on the rotor or stator of the motor. In some designs, multiple magnets are used to enhance the strength of the magnetic field. The number and arrangement of magnets depend on the specific requirements of the vibration motor.  Sintered Neodymium Button Magnet N48 for Pancake Vibrator Motors

1. Permanent Magnets: Permanent magnets are the most commonly used type of magnet in vibration motors. These magnets are made from materials that retain their magnetism over a long period, such as neodymium (NdFeB) or samarium cobalt (SmCo). The permanent magnets used in vibration motors are typically cylindrical or disc-shaped, with a hole in the center for the motor’s shaft to pass through. These magnets are fixed to the motor’s housing or rotor and create a magnetic field that interacts with an electromagnetic coil to generate vibrations. Shaftless Vibration Motor Magnets Permanent Flat Dsc N48  Permanent Button Neodymium Magnets N40 for Pancake MIni Motor

2. Electromagnets: Some vibration motors use electromagnets instead of permanent magnets. Electromagnets are made by winding a coil of wire around a ferromagnetic core. When an electric current passes through the coil, it creates a magnetic field that can be controlled by varying the current strength. By controlling the current flowing through the coil, the strength of the magnetic field can be adjusted, allowing for precise control over the vibrations generated by the motor.  Tiny Button Type Magnets For Shaftless Vibrating Motors N48